core pin in die casting ???

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jpfalt
Posts: 982
Joined: Sun Jan 05, 2003 12:55 pm

Re: core pin in die casting ???

Post by jpfalt »

Putting a steel bushing into an injection mold is no real issue. Only word of caution is to run the end of the inserted bushing against a spring loaded plunger. The clamping force on the die will either crush the bushing, damage the mold or hold the mold slightly open if the busing runs long. I had an experience where a molding house was inserting threaded bushings into a plastic part and all the threads had to be chased after molding. The problem was that the bushings ran slightly long and the clamping force of the mold crushed the length of the bushings enough to change the thread pitch enough that it wouldn't fit a mating stud.
DavidF
Posts: 282
Joined: Wed May 14, 2014 12:28 pm
Location: Delaware

Re: core pin in die casting ???

Post by DavidF »

Ive been thinking about it. Well a little more than thinking. Decided injection molding would be the best way of going about things and have started some work on a design for a pneumatic injector.
Going to be a slow project, and im still tinkering with the design and doing some testing.....
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DavidF
Posts: 282
Joined: Wed May 14, 2014 12:28 pm
Location: Delaware

Re: core pin in die casting ???

Post by DavidF »

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DavidF
Posts: 282
Joined: Wed May 14, 2014 12:28 pm
Location: Delaware

Re: core pin in die casting ???

Post by DavidF »

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