A medical device designer might look up a polymer's physical properties and game out how a part made of the polymer will withstand stress. But start molding the part, and it might not hold up anyway.

CHICAGO (Aug. 21, 5:55 p.m. EDT) — Chem-Pak Inc. showcased its patented product that resolves knit and flow lines created during the injection molding of matte finished parts. Knit and flow lines are ...

Fiber-filled nylons are mechanically stronger than the unfilled resin, except at knit and weld lines. Nylon thermoplastics serve in a variety of demanding applications from automotive air-intake ...

Friedrichshafen, Germany — The two main innovations on the booth of Kunststoff Institut Lüdenscheid (KIMW) both offer solutions to remove visible knitlines, phenomena that can be particularly ...

Ever encounter a part that has a process window thinner than a human hair? Managing the pressure loss in the molding process is complicated and influenced by many factors that are outside the control ...

3D printing is all well and good for prototyping, and it can even produce useful parts. If you want real strenght in plastics, though, or to produce a LOT of parts, you probably want to step up to ...

Known for producing hollow parts, gas-assist techniques can overcome many of the limitations of conventional injection molding. The first patents for gasassist injection molding came in the early ...