Plastic Mold Approval Checklist - Plastics Engineering ... - Eng-Tips
2006年4月13日 · Reviewing the mold drawings is mostly a waste of your time, thought not as much as taking possession of the actual mold and sending it to another molder. The performance of any given mold is determined more by external factors, like skill, process control and machinery condition, than it is to details of mold design.
Trying to mold plexiglass, lexan, or a clear plastic sheeting 1 - Eng …
2003年1月19日 · I would like to mold some type of clear plastic sheeting to fabricate a headlight enclosure for a car. What material would be easiest to mold and maintain a clean and clear appearance when exposed to sunlight and the elements for long periods of time? And as far as molding, the piece...
Plastic Part design with Integrated hinges 3 - Eng-Tips
2003年2月4日 · Looks like a supremely expensive mold. I guess with Sears selling quite a few of these, the cost of this mold is amortised by the vendor who sells to Sears. Anyone have an idea about getting around the mold cost (we are a small company and need to know start-up cost for a new item to establish sales price.
How to: Plastic lens mold - Plastics Engineering general discussion ...
2005年3月4日 · additionally you will need some superglue, some material for housing the mold while the silicone cures (cardboard base and corrugated plastic walls is good), and you probably want some modeling clay, at least for sealing the mold box during cure, if not for helping to make a 2 PART mold.
Injection Mold design - Plastics Engineering general discussion
2001年8月22日 · What are Plastic Injection Mold builders using for mold design. We are using Mechanical Desktop. Using the 3d part for reading customer part files & drawing flat 2d drawings for the actual mold design. The industry push is to draw in 3d, but I haven't seen anybody doing this. Is anyone drawing...
PLASTIC COMPRESSION - Plastics Engineering general discussion
2002年10月16日 · Hello, I would like to know if anyboby knows about rapid manufacturing of plastic pieces aplying compresion. I mean, once you have the mold, you introduce the plastic with something manually and then you put the other part of the mold and press manually or with something. I need to know which...
Plastic for wear strips - Plastics Engineering general discussion
2003年11月14日 · I am looking for a plastic with good wear characteristics that is acceptable in the food processing industry (FDA, USDA acceptable). We currently use UHMW-PE in wear strips for Intralox (usually polyethylene) belting and for stainless steel roller chain. I have done some research, and am looking for some recommendations.
Plastics Engineering general discussion - Eng-Tips
2008年8月5日 · I'm not sure what your volumes are or your estimated budget. But if you want to keep your assembly costs down you might want to look into something like doing 2 shot "In-mold assembly". With this process you utilize 2 different materials; shoot the first part (say the socket) and then the mold rotates and uses the socket as the "cavity" for the ...
Toyota Engineering Standard for Plastic 1 - Eng-Tips
2007年11月29日 · Any way to produce a 100% same plastic lampshell without injection mold? clyde Verse; Jun 29, 2023 ...
When/where to use rads? - Plastics Engineering general discussion
2009年11月4日 · Rads on all edges where the material cools over a core. As the plastic shrinks (either thermal or crystalline shrinkage), stresses are induced. In built stress is a bad thing for plastics.... Rads on external corners (made in a cavity) are cheaper tooling as they can usually be machined in rather than using several electrodes to spark erode ...