Overmolding vacuum cast parts

0
O
3

hello! I’m working on a project that involves overmolding for a VC (valve cover) application. The goal is to embed connectors and screws directly into the molded part to streamline assembly and improve durability. I’m curious about the feasibility of this approach: does overmolding provide a secure enough bond to reliably hold metal inserts like connectors and screws under thermal cycling and vibration stresses typical for automotive applications?

    • O

      hello! I’m working on a project that involves overmolding for a VC (valve cover) application. The goal is to embed connectors and screws directly into the molded part to streamline assembly and improve durability. I’m curious about the feasibility of this approach: does overmolding provide a secure enough bond to reliably hold metal inserts like connectors and screws under thermal cycling and vibration stresses typical for automotive applications?

      0
    • C

      Overmolding onto metal inserts is a common practice in injection molding. One method for achieving this is to design the inserts with overhangs, cavities, or a knurled surface that will allow the plastic to grip onto the metal inserts.

      0
      Reply
      • O
        Chris Maar

        Can adhesives be used to bond the metal to plastic to create a fail-safe in case the inserts come loose?

        0
        Reply
      • C
        Oliver Nicole

        Adhesives can be used, this can add a layer of security especially if you are worried about the inserts coming loose due to the thermal and vibrational loads you mentioned.

        0
        Reply
Overmolding vacuum cast parts
Your information:




Suggested Topics

Topic
Replies
Views
Activity
Are vacuum-casting molds always made of silicone?
Hi! My project requires vacuum casting of silicone parts. I have noticed that silicone molds are commonly used in vacuum casting, but I am wondering if they are always the best option. Would there... read more
M
S
1
31
Feb 05
How to deal with shrinkage issues in polyurethane resin parts during vacuum casting
Hi,  I am concerned about shrinkage in polyurethane vacuum-cast parts during the curing process. These parts have tight tolerances, such as ±0.2 mm, and some features are designed carefully to fit together, such as... read more
J
D
D
2
68
Feb 04
Softer silicone for mold – any impact on accuracy?
Hi, looking for help with the following. Some of my functional prototypes for vacuum casting have a few tricky undercuts. I’m thinking of using softer silicone for the mold to make demolding easier, but... read more
P
R
5
70
Jan 27
Gearing
Good evening. I would like to know which 3D printing technology is suitable for small gears with a diameter of 16mm. And what material should be used? Thank you very much.
3
80
Jan 20
Joint Design
Hello, I'm putting this topic in the right place.To create two parts articulated by an axis that's fixed on one of the parts, what should be done? Is it possible to print both parts... read more
5
109
Jan 09