{"id":22131,"date":"2023-12-11T09:21:58","date_gmt":"2023-12-11T09:21:58","guid":{"rendered":"https:\/\/xometry.pro\/articles\/cnc-machining-finishes\/"},"modified":"2025-09-29T16:22:13","modified_gmt":"2025-09-29T14:22:13","slug":"cnc-machining-finishes","status":"publish","type":"articles","link":"https:\/\/xometry.pro\/en\/articles\/cnc-machining-finishes\/","title":{"rendered":"Surface Finishes for CNC Machining"},"content":{"rendered":"<div role=\"navigation\" aria-label=\"Table of Contents\" class=\"simpletoc wp-block-simpletoc-toc\"><h2 class=\"simpletoc-title\">Table of Contents<\/h2>\n<ul class=\"simpletoc-list\">\n<li><a href=\"#h-heat-treatments-and-surface-finishes\">Heat Treatments and Surface Finishes<\/a>\n\n<\/li>\n<li><a href=\"#heat-treatment-finishing-options-for-cnc-machining\">Heat Treatment Finishing Options for CNC Machining<\/a>\n\n\n<\/li>\n\n<\/li>\n\n<\/li>\n\n<li><a href=\"#cnc-surface-finish-options-at-xometry\">CNC Surface Finish Options at Xometry<\/a>\n\n\n<\/li>\n\n<\/li>\n\n<\/li>\n\n<\/li>\n\n<\/li>\n\n<\/li>\n\n<li><a href=\"#surface-finishes-for-cnc-machining-available-at-xometry\">Surface Finishes for CNC Machining Available at Xometry<\/a>\n\n<\/li>\n<li><a href=\"#source-cnc-machined-parts-with-finishes-at-xometry\">Source CNC Machined Parts With Finishes at Xometry<\/a>\n<\/li><\/ul><\/div>\n\n\n<p>Just-out-of-CNC machined metal parts naturally have visible tool marks, sharp edges and burrs. Apart from decreasing the aesthetic value, they may also have inaccurate dimensions and tolerances. In order to deliver a properly finished part, surface finish treatments are strongly recommended both in CNC machining. <\/p>\n\n\n\n<p>These post-processing operations not only improve the strength of the material but also impart anti-corrosive properties and improve surface roughness.<\/p>\n\n\n    <aside class=\"article-content-aside\">\r\n        <div class=\"aside-title\">Tolerances in CNC Machining<\/div><a href=\"https:\/\/xometry.pro\/en\/articles\/cnc-machining-tolerances\/\" class=\"aside-image sidebar__aside-image\"><img decoding=\"async\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/Limit-tolerances-for-a-shaft-and-a-hole.png\" alt=\"Limit tolerances for a shaft and a hole\"><\/a><a href=\"https:\/\/xometry.pro\/en\/articles\/cnc-machining-tolerances\/\" class=\"aside-link\">Tolerances in CNC Machining<\/a>    <\/aside>\r\n    \n\n<h2 class=\"wp-block-heading\" id=\"h-heat-treatments-and-surface-finishes\"><strong>Heat Treatments and Surface Finishes<\/strong><\/h2>\n\n\n<p>The two most common post-processing operations used in the CNC machining manufacturing process are heat treatments (annealing, case hardening) and surface treatments (bead blasting, powder coating\u2026). Applying the right surface finishes help improve surface roughness as well as the aesthetic and functional properties of the CNC machined parts.<\/p>\n\n\n    <aside class=\"article-content-aside\">\r\n        <div class=\"aside-title\">Surface Roughness in CNC Machining<\/div><div class=\"aside-image sidebar__aside-image\"><img decoding=\"async\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/surface-roughness-CNC-machining-cover-1-scaled-1.jpeg\" alt=\"\"><\/div>    <\/aside>\r\n    \n\n\n<figure class=\"wp-block-image size-full is-resized\"><div class=\"wp-block-image__wrap\"><img decoding=\"async\" width=\"480\" height=\"320\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/The-CNC-machining-surface-of-parts-has-visible-tool-marks.webp\" alt=\"The CNC machining surface of parts has visible tool marks\" class=\"wp-image-18249\" style=\"max-width:562px;height:auto\" srcset=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/The-CNC-machining-surface-of-parts-has-visible-tool-marks.webp 480w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/The-CNC-machining-surface-of-parts-has-visible-tool-marks-300x200.webp 300w\" sizes=\"(max-width: 480px) 100vw, 480px\" \/><a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/The-CNC-machining-surface-of-parts-has-visible-tool-marks.webp\" data-fancybox=\"gallery-22131\" data-caption=\"The CNC machining surface of parts has visible tool marks\" aria-label=\"Open full image\"><img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/The-CNC-machining-surface-of-parts-has-visible-tool-marks.webp\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"\" loading=\"lazy\" decoding=\"async\"><svg class=\"wp-block-image__fancy-box-button-icon\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\" fill=\"none\" aria-hidden=\"true\">\r\n               <path d=\"M0 2V6H2V2H6V0H2C0.895 0 0 0.895 0 2ZM2 12H0V16C0 17.105 0.895 18 2 18H6V16H2V12ZM16 16H12V18H16C17.105 18 18 17.105 18 16V12H16V16ZM16 0H12V2H16V6H18V2C18 0.895 17.105 0 16 0Z\" fill=\"#092C47\"\/>\r\n             <\/svg><\/a><\/div><figcaption class=\"wp-element-caption\">The CNC machining surface of parts has visible tool marks<\/figcaption><\/figure>\n\n\n<h2 class=\"wp-block-heading\" id=\"heat-treatment-finishing-options-for-cnc-machining\"><strong>Heat Treatment Finishing Options for CNC Machining<\/strong><\/h2>\n\n\n<p>The heat treatment operation improves the physical and mechanical properties of the metal by carefully heating and cooling the metal. The general properties like strength, hardness, ductility, malleability, formability and elasticity can be increased or decreased by this procedure. The operations related to heat treatments are as follows.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"annealing\"><strong>Annealing<\/strong><\/h3>\n\n\n<p>The annealing process involves the heating of a metal to or near the temperature at which recrystallisation begins without change in the stresses. After heating, the metal should be cooled to room temperature in the oven or put in the sand. This slow cooling of metal increases elasticity in the metal by reducing its hardness, thereby improving the cold working capacity of the metal.<\/p>\n\n\n\n<p>It is generally used for steel alloys, but it can also be used for copper, aluminium and brass.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"tempering\"><strong>Tempering<\/strong><\/h3>\n\n\n<p>Tempering is a heat treatment method that is mainly dedicated to reducing the amount of hardness of metals. It involves heating the metal to a temperature below the critical point. The temperature is adjusted depending on the amount of hardness that needs to be reduced and it varies depending on the metal type as well.<\/p>\n\n\n\n<p>In general, low temperatures reduce brittleness while keeping most of the hardness intact. Higher temperatures, on the other hand, reduce hardness and increase elasticity and plasticity but reduce some yield and tensile strength.&nbsp;<\/p>\n\n\n\n<p>Gradual heating is recommended to avoid the steel being cracked. The metal is then held at this temperature for a fixed period. Steel alloys are prominently tempered for enhanced properties.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class=\"wp-block-image__wrap\"><img decoding=\"async\" width=\"1024\" height=\"686\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/CNC-machined-parts-during-the-tempering-surface-finish-process-1024x686.webp\" alt=\"CNC machined parts during the tempering surface finish process\" class=\"wp-image-18261\" srcset=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/CNC-machined-parts-during-the-tempering-surface-finish-process-1024x686.webp 1024w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/CNC-machined-parts-during-the-tempering-surface-finish-process-300x201.webp 300w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/CNC-machined-parts-during-the-tempering-surface-finish-process-768x514.webp 768w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/CNC-machined-parts-during-the-tempering-surface-finish-process.webp 1440w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/CNC-machined-parts-during-the-tempering-surface-finish-process.webp\" data-fancybox=\"gallery-22131\" data-caption=\"Tempering\" aria-label=\"Open full image\"><img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/CNC-machined-parts-during-the-tempering-surface-finish-process.webp\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"\" loading=\"lazy\" decoding=\"async\"><svg class=\"wp-block-image__fancy-box-button-icon\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\" fill=\"none\" aria-hidden=\"true\">\r\n               <path d=\"M0 2V6H2V2H6V0H2C0.895 0 0 0.895 0 2ZM2 12H0V16C0 17.105 0.895 18 2 18H6V16H2V12ZM16 16H12V18H16C17.105 18 18 17.105 18 16V12H16V16ZM16 0H12V2H16V6H18V2C18 0.895 17.105 0 16 0Z\" fill=\"#092C47\"\/>\r\n             <\/svg><\/a><\/div><figcaption class=\"wp-element-caption\">Tempering<\/figcaption><\/figure>\n\n\n<h3 class=\"wp-block-heading\" id=\"case-hardening\"><strong>Case Hardening<\/strong><\/h3>\n\n\n<p>Case-hardening or carburising is a heat treatment process which includes hardening the surface of metal while allowing the metal underneath to remain soft. As the name implies, carburising is inducting carbon or nitrogen into low-carbon alloys at elevated temperatures so that the hardenability increases.<\/p>\n\n\n\n<p>This surface finish can be applied to the part before or after the CNC machining process.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"through-hardening\"><strong>Through Hardening<\/strong><\/h3>\n\n\n<p>Through hardening differs from case hardening where, instead of just the surface, the whole alloy is made to have relatively similar hardenability. This can be achieved by introducing carbon into the alloy matrix and <a href=\"#quenching\">quenching<\/a> it repeatedly in brine or in water. Oil quenching can also be used.<\/p>\n\n\n    <aside data-id=\"quenching\" class=\"aside-popup\">\r\n        <div class=\"popup-content\">\r\n            <div class=\"popup-close-btn\">\r\n                <img decoding=\"async\" src=\"https:\/\/xometry.pro\/wp-content\/themes\/xometry\/assets\/images\/cross.svg\" alt=\"close-popup\">\r\n            <\/div>\r\n            <div>\r\n                <div class=\"popup-title\">Quenching<\/div><div class=\"popup-text\">Quenching in manufacturing is a crucial heat treatment process that involves rapidly cooling a metal component, typically using water, oil, or air. This rapid cooling alters the material&#8217;s structure, enhancing its hardness and strength. In the context of manufacturing technologies like CNC machining and metal fabrication, quenching plays a vital role in achieving desired material properties.<\/div>            <\/div>\r\n                    <\/div>\r\n    <\/aside>\r\n\n\n<h2 class=\"wp-block-heading\" id=\"cnc-surface-finish-options-at-xometry\"><strong>CNC Surface Finish Options at Xometry<\/strong><\/h2>\n\n\n<p>The operations related to surface finishes are as follows.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"bead-blasting\"><strong>Bead Blasting<\/strong><\/h3>\n\n\n<p>Bead blasting involves spraying a pressurised stream of tiny beads of media, plastic or glass beads, from a nozzle onto the surface of the part. This removes the burrs and imperfections, leaving a smooth finish. In addition, the end product resembles a uniform satin finish.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Bead blasting is done in a closed chamber. Blasting with glass beads is more common for CNC machined parts. Since the surface is matte, it is ideal as a preliminary surface finish treatment for painting and dying. Bead blasting before anodising is also an ideal surface preparation, creating a non-reflective surface.&nbsp;<\/p>\n\n\n\n<p>The recommended part size is 6-600 mm in both height and width. Smaller parts are hard to hold and tough to produce an even surface.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><div id=\"7C1cX3bUOa0-69d1c9ae958ae\" data-video-id=\"7C1cX3bUOa0\" class=\"ma-gdpr-youtube-wrapper\" style=\"width:100%;height:56.25%;padding-top:56.25%;\" data-new-window=\"\" data-yt-parameters=\"eyJtYXgtd2lkdGgiOiI0MDBweCJ9\"><picture class=\"ma-gdpr-youtube-thumbnail\"><source media=\"(min-width:640px)\" type=\"image\/webp\" srcset=\"\/\/xometry.pro\/wp-content\/uploads\/ma-gdpr-youtube-thumbnails\/7C1cX3bUOa0\/7C1cX3bUOa0_hq720.webp\"><source media=\"(min-width:640px)\" type=\"image\/jpeg\" srcset=\"\/\/xometry.pro\/wp-content\/uploads\/ma-gdpr-youtube-thumbnails\/7C1cX3bUOa0\/7C1cX3bUOa0_hq720.jpg\"><source media=\"(min-width:320px)\" type=\"image\/webp\" srcset=\"\/\/xometry.pro\/wp-content\/uploads\/ma-gdpr-youtube-thumbnails\/7C1cX3bUOa0\/7C1cX3bUOa0_sddefault.webp\"><source media=\"(min-width:320px)\" type=\"image\/jpeg\" srcset=\"\/\/xometry.pro\/wp-content\/uploads\/ma-gdpr-youtube-thumbnails\/7C1cX3bUOa0\/7C1cX3bUOa0_sddefault.jpg\"><source media=\"(min-width:240px)\" type=\"image\/webp\" srcset=\"\/\/xometry.pro\/wp-content\/uploads\/ma-gdpr-youtube-thumbnails\/7C1cX3bUOa0\/7C1cX3bUOa0_hqdefault.webp\"><source media=\"(min-width:240px)\" type=\"image\/jpeg\" srcset=\"\/\/xometry.pro\/wp-content\/uploads\/ma-gdpr-youtube-thumbnails\/7C1cX3bUOa0\/7C1cX3bUOa0_hqdefault.jpg\"><img decoding=\"async\" src=\"\/\/xometry.pro\/wp-content\/uploads\/ma-gdpr-youtube-thumbnails\/7C1cX3bUOa0\/7C1cX3bUOa0_mqdefault.jpg\" alt=\"\" title=\"\"><\/picture><svg class=\"ma-gdpr-youtube-button\"><use xlink:href=\"#ma-gdpr-youtube-play-button\"><\/use><\/svg><div class=\"ma-gdpr-youtube-notice\" style=\"font-size:.7em;\"><\/div><\/div>\n<\/div>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"electroless-nickel-plating\"><strong>Electroless Nickel Plating<\/strong><\/h3>\n\n\n<p>Electroless nickel or nickel phosphorus plating involves the deposition of an even layer of nickel-phosphorus alloy on the top surface of the solid substrate, like aluminium or steel. The substrate is dipped into a water solution containing nickel salts and phosphorus-reducing agents.<\/p>\n\n\n\n<p>Unlike electroplating, this procedure plates the substrate uniformly while the former suffers from uneven current density and resistance of the substrate.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"powder-coating\"><strong>Powder Coating<\/strong><\/h3>\n\n\n<p>The powder coating process involves free-flowing dry powder which is coated on a substrate. Unlike the normal liquid paint which utilises evaporating solvent, powder coating is applied electrostatically and cured under heat or UV light. The powder can be of thermoplastic or a thermoset polymer.<\/p>\n\n\n\n<p>The finish is usually tougher and even compared to conventional coats. Metals like aluminium and steel can be efficiently coated with polymer powders.<\/p>\n\n\n    <section class=\"article-slider-block\">\r\n        <div class=\"article-content-wrapper\">\r\n            <!-- Swiper -->\r\n            <div class=\"swiper mySwiper2 article-slider-display\">\r\n                <div class=\"swiper-wrapper\">\r\n                                                <div class=\"swiper-slide\">\r\n                                <div class=\"wp-block-image__wrap\">\r\n                                    <img decoding=\"async\"  src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/CNC-machined-part-with-a-nickel-plating-surface-finish-previously-polished.webp\" alt=\"CNC machined part with a nickel plating surface finish, previously polished\"\r\n                                    >\r\n                                    <a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/CNC-machined-part-with-a-nickel-plating-surface-finish-previously-polished.webp\" data-fancybox=\"gallery\" data-caption=\"Electro nickel plating\" aria-label=\"Open full image\">\r\n                                        <img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/CNC-machined-part-with-a-nickel-plating-surface-finish-previously-polished.webp\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"CNC machined part with a nickel plating surface finish, previously polished\" loading=\"lazy\" decoding=\"async\">\r\n                                        <svg class=\"wp-block-image__fancy-box-button-icon\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\" fill=\"none\" aria-hidden=\"true\">\r\n                                            <path d=\"M0 2V6H2V2H6V0H2C0.895 0 0 0.895 0 2ZM2 12H0V16C0 17.105 0.895 18 2 18H6V16H2V12ZM16 16H12V18H16C17.105 18 18 17.105 18 16V12H16V16ZM16 0H12V2H16V6H18V2C18 0.895 17.105 0 16 0Z\" fill=\"#092C47\"><\/path>\r\n                                        <\/svg>\r\n                                    <\/a>\r\n                                <\/div>\r\n                                <div class=\"article-slider-text\">\r\n                                    <p>Electro nickel plating<\/p>\n                                <\/div>\r\n                            <\/div>\r\n                            \r\n                                                        <div class=\"swiper-slide\">\r\n                                <div class=\"wp-block-image__wrap\">\r\n                                    <img decoding=\"async\"  src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/CNC-machined-and-powder-coated-part.webp\" alt=\"CNC machined and powder coated part\"\r\n                                    >\r\n                                    <a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/CNC-machined-and-powder-coated-part.webp\" data-fancybox=\"gallery\" data-caption=\"Powder coated\" aria-label=\"Open full image\">\r\n                                        <img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/CNC-machined-and-powder-coated-part.webp\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"CNC machined and powder coated part\" loading=\"lazy\" decoding=\"async\">\r\n                                        <svg class=\"wp-block-image__fancy-box-button-icon\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\" fill=\"none\" aria-hidden=\"true\">\r\n                                            <path d=\"M0 2V6H2V2H6V0H2C0.895 0 0 0.895 0 2ZM2 12H0V16C0 17.105 0.895 18 2 18H6V16H2V12ZM16 16H12V18H16C17.105 18 18 17.105 18 16V12H16V16ZM16 0H12V2H16V6H18V2C18 0.895 17.105 0 16 0Z\" fill=\"#092C47\"><\/path>\r\n                                        <\/svg>\r\n                                    <\/a>\r\n                                <\/div>\r\n                                <div class=\"article-slider-text\">\r\n                                    <p>Powder coated<\/p>\n                                <\/div>\r\n                            <\/div>\r\n                            \r\n                                                        <div class=\"swiper-slide\">\r\n                                <div class=\"wp-block-image__wrap\">\r\n                                    <img decoding=\"async\"  src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Fasteners-with-zinc-passivate-surface-finish.webp\" alt=\"Fasteners with zinc passivate surface finish\"\r\n                                    >\r\n                                    <a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Fasteners-with-zinc-passivate-surface-finish.webp\" data-fancybox=\"gallery\" data-caption=\"Passivated\" aria-label=\"Open full image\">\r\n                                        <img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Fasteners-with-zinc-passivate-surface-finish.webp\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"Fasteners with zinc passivate surface finish\" loading=\"lazy\" decoding=\"async\">\r\n                                        <svg class=\"wp-block-image__fancy-box-button-icon\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\" fill=\"none\" aria-hidden=\"true\">\r\n                                            <path d=\"M0 2V6H2V2H6V0H2C0.895 0 0 0.895 0 2ZM2 12H0V16C0 17.105 0.895 18 2 18H6V16H2V12ZM16 16H12V18H16C17.105 18 18 17.105 18 16V12H16V16ZM16 0H12V2H16V6H18V2C18 0.895 17.105 0 16 0Z\" fill=\"#092C47\"><\/path>\r\n                                        <\/svg>\r\n                                    <\/a>\r\n                                <\/div>\r\n                                <div class=\"article-slider-text\">\r\n                                    <p>Passivated<\/p>\n                                <\/div>\r\n                            <\/div>\r\n                            \r\n                                            <\/div>\r\n            <\/div>\r\n            <div thumbsSlider=\"\" class=\"swiper mySwiper article-slider-list\">\r\n                <div class=\"swiper-wrapper\">\r\n                                            <div class=\"swiper-slide\">\r\n                            <img decoding=\"async\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/CNC-machined-part-with-a-nickel-plating-surface-finish-previously-polished.webp\" alt=\"CNC machined part with a nickel plating surface finish, previously polished\">\r\n                        <\/div>\r\n                                                <div class=\"swiper-slide\">\r\n                            <img decoding=\"async\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/CNC-machined-and-powder-coated-part.webp\" alt=\"CNC machined and powder coated part\">\r\n                        <\/div>\r\n                                                <div class=\"swiper-slide\">\r\n                            <img decoding=\"async\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Fasteners-with-zinc-passivate-surface-finish.webp\" alt=\"Fasteners with zinc passivate surface finish\">\r\n                        <\/div>\r\n                                        <\/div>\r\n            <\/div>\r\n        <\/div>\r\n    <\/section>\r\n    \n\n<h3 class=\"wp-block-heading\" id=\"electropolishing\"><strong>Electropolishing<\/strong><\/h3>\n\n\n<p>Electropolishing is the exact opposite of electroplating. In the latter, the substrate is a cathode and the sacrificial anode imparts its ions to the cathode. Here, it is reversed where the substrate is an anode and its ions travel towards the cathode.<\/p>\n\n\n\n<p>In this process, the micro peaks and valleys are levelled out. It is a very good technique for deburring and reducing the average surface roughness.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"passivation\"><strong>Passivation<\/strong><\/h3>\n\n\n<p>Passivation is a process primarily involving stainless steel which mainly comprises iron, chromium and nickel. The anti-corrosion properties of stainless steel are provided by chromium in the alloy as it naturally produces a layer of chromium oxide on the surface while the free iron facilitates corrosion.<\/p>\n\n\n\n<p>Passivation involves the immersion of stainless steel in an acid bath (e.g. Nitric acid) which dissolves free iron and improves the strength of chromium oxide, thereby countering corrosion.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"anodising\"><strong>Anodising<\/strong><\/h3>\n\n\n<p>Anodising is similar to passivation as it improves the thickness of the oxide layer thereby making the metal surface corrosion resistant. It is highly common for aluminium in CNC machining. It differs from passivation where instead of just dipping in acid, an electrolytic process is involved. Hence it is also called electrolytic passivation.<\/p>\n\n\n\n<p>In anodising, aluminium alloy is dipped in a sulphuric acid electrolyte and used as an anode. When a cathode (inert material like stainless steel, nickel, carbon etc) is placed and electricity is passed, oxygen flows to the anode and reacts forming an anodic oxide. This anodic oxide mostly contains aluminium oxide which protects against corrosion.&nbsp;<\/p>\n\n\n\n<p>The electrolytes are usually:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>10\u201315% solution sulphuric acid at 25\u00b0C which produces an oxide layer of about 25\u00b5m\/hr<\/li>\n\n\n\n<li>Mixture of oxalic and sulphuric acids at 30\u00b0C, producing about 30\u00b5m\/hr<\/li>\n\n\n\n<li>10% chromic acid operating at 38\u201342\u00b0C, producing about 15\u00b5m\/hr<\/li>\n<\/ul>\n\n\n\n<p>Anodising also imparts a coarse and grainy surface finish to the metal. It also facilitates the trapping of dye in the oxide layer, thereby giving a near-permanent colour.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><div class=\"wp-block-image__wrap\"><img decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Sheet-metal-aluminium-black-anodised-part-1024x683.jpeg\" alt=\"Sheet metal aluminium black anodised part\" class=\"wp-image-17532\" style=\"max-width:835px;height:auto\" srcset=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Sheet-metal-aluminium-black-anodised-part-1024x683.jpeg 1024w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Sheet-metal-aluminium-black-anodised-part-300x200.jpeg 300w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Sheet-metal-aluminium-black-anodised-part-768x512.jpeg 768w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Sheet-metal-aluminium-black-anodised-part-1536x1024.jpeg 1536w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Sheet-metal-aluminium-black-anodised-part-2048x1366.jpeg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Sheet-metal-aluminium-black-anodised-part.jpeg\" data-fancybox=\"gallery-22131\" data-caption=\"Sheet metal aluminium black anodised part\" aria-label=\"Open full image\"><img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/Sheet-metal-aluminium-black-anodised-part.jpeg\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"\" loading=\"lazy\" decoding=\"async\"><svg class=\"wp-block-image__fancy-box-button-icon\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\" fill=\"none\" aria-hidden=\"true\">\r\n               <path d=\"M0 2V6H2V2H6V0H2C0.895 0 0 0.895 0 2ZM2 12H0V16C0 17.105 0.895 18 2 18H6V16H2V12ZM16 16H12V18H16C17.105 18 18 17.105 18 16V12H16V16ZM16 0H12V2H16V6H18V2C18 0.895 17.105 0 16 0Z\" fill=\"#092C47\"\/>\r\n             <\/svg><\/a><\/div><figcaption class=\"wp-element-caption\">Sheet metal aluminium black anodised part<\/figcaption><\/figure>\n\n\n<h3 class=\"wp-block-heading\" id=\"zinc-coating-galvanising\"><strong>Zinc coating \/ Galvanising<\/strong><\/h3>\n\n\n<p>Galvanising is mainly associated with steel. Also known as hot-dip galvanising is a process of immersing steel in a bath of molten zinc, thereby coating the steel with multiple layers of zinc-iron alloy and zinc metal.<\/p>\n\n\n\n<p>It is because the zinc chemically reacts with ferrous content in the steel and diffuses the coating perpendicular to the surface creating a uniform thick layer along the surface.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"surface-finishes-for-cnc-machining-available-at-xometry\"><strong>Surface Finishes for CNC Machining Available at Xometry<\/strong><\/h2>\n\n\n<p>The table below sums up the various surface finish options you can choose to obtain the desired surface finish and surface texture.<\/p>\n\n\n<div class=\"custom-table-block \" id=\"table-id-625\" >\r\n\t<div class=\"search-input-wrapper\">\r\n\t\t<svg width=\"16\" height=\"16\" viewBox=\"0 0 16 16\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\r\n\t\t\t<path d=\"M15.7812 13.833L12.6659 10.7177C12.5252 10.5771 12.3346 10.499 12.1347 10.499H11.6253C12.4877 9.39596 13.0002 8.00859 13.0002 6.49937C13.0002 2.90909 10.0911 0 6.50083 0C2.91056 0 0.00146484 2.90909 0.00146484 6.49937C0.00146484 10.0896 2.91056 12.9987 6.50083 12.9987C8.01006 12.9987 9.39742 12.4863 10.5004 11.6239V12.1332C10.5004 12.3332 10.5786 12.5238 10.7192 12.6644L13.8345 15.7797C14.1282 16.0734 14.6032 16.0734 14.8938 15.7797L15.778 14.8954C16.0718 14.6017 16.0718 14.1267 15.7812 13.833ZM6.50083 10.499C4.29167 10.499 2.50122 8.71165 2.50122 6.49937C2.50122 4.29021 4.28855 2.49976 6.50083 2.49976C8.70999 2.49976 10.5004 4.28708 10.5004 6.49937C10.5004 8.70852 8.71311 10.499 6.50083 10.499Z\" fill=\"#476175\"\/>\r\n\t\t<\/svg>\r\n\t\t<input type=\"search\" class=\"table-search-input\" id=\"table-search-625\" placeholder=\"Table search\">\r\n\t<\/div>\t\r\n\t<div class=\"table-wrapper\">\r\n\t\t<table style=\"border-collapse: collapse; width: 100%; height: 456px;\">\n<tbody>\n<tr style=\"height: 24px;\">\n<td class=\"block-editor-rich-text__editable wp-block-table__cell-content rich-text\" style=\"width: 33.3763%; height: 24px;\" role=\"textbox\" contenteditable=\"true\" aria-multiline=\"true\" aria-label=\"Body cell text\"><strong data-rich-text-format-boundary=\"true\">Surface finish<\/strong><\/td>\n<td class=\"block-editor-rich-text__editable wp-block-table__cell-content rich-text\" style=\"width: 33.1185%; height: 24px;\" role=\"textbox\" contenteditable=\"true\" aria-multiline=\"true\" aria-label=\"Body cell text\"><strong>Suitable material(s)<\/strong><\/td>\n<td class=\"block-editor-rich-text__editable wp-block-table__cell-content rich-text\" style=\"width: 33.2474%; height: 24px;\" role=\"textbox\" contenteditable=\"true\" aria-multiline=\"true\" aria-label=\"Body cell text\"><strong>Benefits<\/strong><\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 33.3763%; height: 24px;\"><strong>Annealing<\/strong><\/td>\n<td style=\"width: 33.1185%; height: 24px;\">Steel alloys, copper, aluminium, brass<\/td>\n<td style=\"width: 33.2474%; height: 24px;\">\u2022 Enhance electrical conductivity<br \/>\n\u2022 Softens material for cold working<br \/>\n\u2022 Improves machinability<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 33.3763%; height: 24px;\"><strong>Tempering<\/strong><\/td>\n<td style=\"width: 33.1185%; height: 24px;\">Steel alloys, copper, aluminium, brass<\/td>\n<td style=\"width: 33.2474%; height: 24px;\">\u2022 Increase hardness, ductility, strength<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 33.3763%; height: 24px;\"><strong>Case hardening<\/strong><\/td>\n<td style=\"width: 33.1185%; height: 24px;\">Steel alloys, copper, aluminium, brass<\/td>\n<td style=\"width: 33.2474%; height: 24px;\">\u2022 Improves surface toughness<br \/>\n\u2022 Increases corrosion resistance<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 33.3763%; height: 24px;\"><strong>Through hardening<\/strong><\/td>\n<td style=\"width: 33.1185%; height: 24px;\">Steel alloys, copper, aluminium, brass<\/td>\n<td style=\"width: 33.2474%; height: 24px;\">\u2022 Improves overall alloy toughness<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 33.3763%; height: 24px;\"><strong>Zinc coating \/ Galvanising<\/strong><\/td>\n<td style=\"width: 33.1185%; height: 24px;\">Steel<\/td>\n<td style=\"width: 33.2474%; height: 24px;\">\u2022 Improves surface corrosion resistance<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 33.3763%; height: 24px;\"><strong>Passivation<\/strong><\/td>\n<td style=\"width: 33.1185%; height: 24px;\">Stainless steel<\/td>\n<td style=\"width: 33.2474%; height: 24px;\">\u2022 Increase the part\u2019s resistance to corrosion<\/td>\n<\/tr>\n<tr style=\"height: 96px;\">\n<td style=\"width: 33.3763%; height: 96px;\"><strong>Anodising<\/strong><br \/>\n(orange, red, purple, gold, yellow, black, green, blue and clear anodising)<strong><br \/>\n<\/strong><\/td>\n<td style=\"width: 33.1185%; height: 96px;\">Steel alloys, copper, aluminium, brass<\/td>\n<td style=\"width: 33.2474%; height: 96px;\">\u2022 Gives a shiny aesthetic finish<br \/>\n\u2022 Increase the part\u2019s resistance to corrosion<\/td>\n<\/tr>\n<tr style=\"height: 48px;\">\n<td style=\"width: 33.3763%; height: 48px;\"><strong>Electroless nickel plating<\/strong><strong><br \/>\n<\/strong><\/td>\n<td style=\"width: 33.1185%; height: 48px;\">Aluminium, steel alloys<\/td>\n<td style=\"width: 33.2474%; height: 48px;\">\u2022 Improves the surface<br \/>\n\u2022 Cost effective<\/td>\n<\/tr>\n<tr style=\"height: 48px;\">\n<td style=\"width: 33.3763%; height: 48px;\"><strong>Powder coating<\/strong><strong><br \/>\n<\/strong><\/td>\n<td style=\"width: 33.1185%; height: 48px;\">Aluminium, steel alloys<\/td>\n<td style=\"width: 33.2474%; height: 48px;\">\u2022 Increase strength<br \/>\n\u2022 Good base for dyeing<\/td>\n<\/tr>\n<tr style=\"height: 72px;\">\n<td style=\"width: 33.3763%; height: 72px;\"><strong>Electropolishing<\/strong><strong><br \/>\n<\/strong><\/td>\n<td style=\"width: 33.1185%; height: 72px;\">Steel alloys<\/td>\n<td style=\"width: 33.2474%; height: 72px;\">\u2022 Even and shiny surface<br \/>\n\u2022 Corrosion resistant and high weldability<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"width: 33.3763%; height: 24px;\"><strong>Bead blasting<\/strong><\/td>\n<td style=\"width: 33.1185%; height: 24px;\">Stainless steel, aluminium, brass, copper<\/td>\n<td style=\"width: 33.2474%; height: 24px;\">\u2022 Smoother surface<br \/>\n\u2022 Widely used surface finish<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\t<\/div>\r\n<\/div>\r\n<style>\r\n\t.custom-table-block table{\r\n\t\theight: initial!important;\r\n\t}\r\n\t.search-input-wrapper{\r\n\t\tposition: relative;\r\n\t\tmargin-bottom: 24px;\r\n\t}\r\n\t.search-input-wrapper svg{\r\n\t\tposition: absolute;\r\n\t\ttop:50%;\r\n\t\tleft:12px;\r\n\t\ttransform: translateY(-50%);\r\n\t}\r\n\t.table-search-input{\r\n\t\tpadding: 0 0 0 40px;\r\n\t\tborder:1px solid #C1CAD1;\r\n\t\theight: 44px;\r\n\t\twidth: 201px;\r\n\t\tcolor:#092C47;\r\n\t\tfont-family: Open Sans;\r\n\t\tfont-size: 16px;\r\n\t\tfont-weight: 400;\r\n\t\tline-height: 24px;\r\n\t\tletter-spacing: 0em;\r\n\t\ttext-align: left;\r\n\t}\r\n\t.table-search-input::placeholder{\r\n\t\tcolor:#092C47;\r\n\t}\r\n\t\r\n\t.custom-table-block thead th{\r\n\t\ttext-align: left;\r\n\t\twhite-space:nowrap;\r\n\t}\r\n\t\r\n\t.custom-table-block thead{\r\n\t\tmargin-bottom: 14px;\r\n\t}\r\n\r\n\t.custom-table-block tbody tr:nth-child(odd){\r\n\t\tbackground-color: #F6F9FF;\r\n\t}\r\n\r\n\t.custom-table-block tbody, .custom-table-block thead, .custom-table-block tr, .custom-table-block td, .custom-table-block th{\r\n\t\theight: initial!important;\r\n\t}\r\n\t\r\n\t.custom-table-block tbody td{\r\n\t\tcolor:#092C47;\r\n\t\tfont-family: Open Sans;\r\n\t\tfont-size: 16px;\r\n\t\tfont-weight: 400;\r\n\t\tline-height: 24px;\r\n\t\tletter-spacing: 0em;\r\n\t\ttext-align: left;\r\n\t\tpadding: 7px;\r\n\t}\r\n\t\r\n\t.custom-table-block thead th{\r\n\t\tfont-family: Open Sans;\r\n\t\tfont-size: 16px;\r\n\t\tfont-weight: 700;\r\n\t\tline-height: 24px;\r\n\t\tletter-spacing: 0em;\r\n\t\ttext-align: left;\r\n\t\tcolor:#092C47;\r\n\t\tposition: relative;\r\n\t}\r\n\t.custom-table-block thead th:after{\r\n\t\tcontent:\"\";\r\n\t\tdisplay: inline-block;\r\n\t\tbackground-image: url(\"data:image\/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http:\/\/www.w3.org\/2000\/svg'%3E%3Cpath d='M10.585 0.585938L6 5.17094L1.415 0.585938L0 2.00094L6 8.00094L12 2.00094L10.585 0.585938Z' fill='%23476175'\/%3E%3C\/svg%3E%0A\");\r\n\t\tmargin-left: 8px;\r\n\t\tbackground-position: center center;\r\n\t\tbackground-size: 12px 7.5px;\r\n\t\tbackground-repeat: no-repeat;\r\n\t\twidth: 24px;\r\n\t\theight: 12px;\r\n\t}\r\n\t.custom-table-block{\r\n\t\tmargin: 20px 0;\t\r\n\t}\r\n\t.custom-table-block .table-wrapper{\r\n\t\twidth: 100%;\r\n\t\toverflow-x: auto;\r\n\t}\r\n\t@media(max-width: 768px){\r\n\t\t\/* .custom-table-block tbody td{\r\n\t\t\twhite-space: nowrap;\r\n\t\t} *\/\r\n\t\t.custom-table-block .table-wrapper{\r\n\t\t\tmax-width: calc(100vw - 16px);\r\n\t\t}\r\n\t}\r\n<\/style>\r\n\n\n<h2 class=\"wp-block-heading\" id=\"source-cnc-machined-parts-with-finishes-at-xometry\"><strong>Source CNC Machined Parts With Finishes at Xometry<\/strong><\/h2>\n\n\n<p>Surface finish is a very important operation for the CNC machining manufacturing process. Heat treatment improves the overall properties of the metal whereas surface finishes mostly make the metal resist corrosion.<\/p>\n\n\n\n<p>Xometry offers CNC machining services (CNC turning and CNC milling machining processes) throughout Europe and our experienced team is always ready to help you. Upload your files to Xometry Instant Quoting Engine and get a quote in a matter of seconds for your CNC machining projects.<\/p>\n","protected":false},"author":50,"featured_media":18314,"comment_status":"open","ping_status":"closed","template":"","categories":[],"c-tag-articles":[],"global-tag":[11,84],"class_list":["post-22131","articles","type-articles","status-publish","has-post-thumbnail","hentry","global-tag-cnc-machining","global-tag-post-processing"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.7 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Surface Finishes for CNC Machining | Xometry Pro<\/title>\n<meta name=\"description\" content=\"This article is aimed at providing an overview of surface finish options for CNC machined metal parts and helping select the right finishes.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/xometry.pro\/en\/articles\/cnc-machining-finishes\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Surface Finishes for CNC Machining | Xometry Pro\" \/>\n<meta property=\"og:description\" content=\"This article is aimed at providing an overview of surface finish options for CNC machined metal parts and helping select the right finishes.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/xometry.pro\/en\/articles\/cnc-machining-finishes\/\" \/>\n<meta property=\"og:site_name\" content=\"Xometry Pro\" \/>\n<meta property=\"article:modified_time\" content=\"2025-09-29T14:22:13+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/12\/cnc-machining-finish-natural-hardcoat-scaled-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1707\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"7 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/xometry.pro\\\/en\\\/articles\\\/cnc-machining-finishes\\\/\",\"url\":\"https:\\\/\\\/xometry.pro\\\/en\\\/articles\\\/cnc-machining-finishes\\\/\",\"name\":\"Surface Finishes for CNC Machining | Xometry Pro\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/xometry.pro\\\/en\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/xometry.pro\\\/en\\\/articles\\\/cnc-machining-finishes\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/xometry.pro\\\/en\\\/articles\\\/cnc-machining-finishes\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/xometry.pro\\\/wp-content\\\/uploads\\\/2023\\\/12\\\/cnc-machining-finish-natural-hardcoat-scaled-1.jpg\",\"datePublished\":\"2023-12-11T09:21:58+00:00\",\"dateModified\":\"2025-09-29T14:22:13+00:00\",\"description\":\"This article is aimed at providing an overview of surface finish options for CNC machined metal parts and helping select the right finishes.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/xometry.pro\\\/en\\\/articles\\\/cnc-machining-finishes\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/xometry.pro\\\/en\\\/articles\\\/cnc-machining-finishes\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/xometry.pro\\\/en\\\/articles\\\/cnc-machining-finishes\\\/#primaryimage\",\"url\":\"https:\\\/\\\/xometry.pro\\\/wp-content\\\/uploads\\\/2023\\\/12\\\/cnc-machining-finish-natural-hardcoat-scaled-1.jpg\",\"contentUrl\":\"https:\\\/\\\/xometry.pro\\\/wp-content\\\/uploads\\\/2023\\\/12\\\/cnc-machining-finish-natural-hardcoat-scaled-1.jpg\",\"width\":2560,\"height\":1707},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/xometry.pro\\\/en\\\/articles\\\/cnc-machining-finishes\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/xometry.pro\\\/en\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Articles\",\"item\":\"https:\\\/\\\/xometry.pro\\\/en\\\/articles\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Post-Processing\",\"item\":\"https:\\\/\\\/xometry.pro\\\/en\\\/global-tag\\\/post-processing\\\/\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Surface Finishes for CNC Machining\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/xometry.pro\\\/en\\\/#website\",\"url\":\"https:\\\/\\\/xometry.pro\\\/en\\\/\",\"name\":\"Xometry Pro\",\"description\":\"Knowledge &amp; 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