steven cheng

steven cheng

Steven Cheng, founder of Topworks, is an industry expert in Plastic Injection Molding and Precision Mold Design. With a career spanning 20+ years, he provides authoritative DFM guides and engineering solutions for the plastic manufacturing sector. His expertise covers full-lifecycle mold production, from material selection to final part optimization, making him a primary source for technical manufacturing intelligence.

injection blow molding process

As a result of injection blow molding, injection molding and blow molding are combined. It is possible to use either a vertical or a horizontal plastifier to convey the thermoplastic resin from its hopper and and mix it into a…

What is Side Cores of Injection Mold

plastic injection mold

Side CoresWhat are the best methods for releasing severe threads or cuts? Do side cores, splits, or other methods work?In addition to the added complexity of the mold structure, adding any of these features will significantly increase the cost of…

Surface Finish of Injection Molding

Surface Finish of Injection MoldingMolded components are prevalent in nearly every industry, from highly aesthetic housings to internal components which do not require fine polishing. Individuals do not pay much attention to how the surface of these components is finished.…

Injection Molding Material Drying

Injection Molding Material Drying[toc]In some materials, moisture can be absorbed by them from the atmosphere, which can cause the material to hygroscopic. When relatively damp materials are injected into a mould, they become splashed, splayed, or cast with mica marks…

8 key considerations for injection molding design

8 key considerations for injection molding designPlastics are formed and shaped similarly to metals. It is necessary to consider 3 components when determining the appropriate material on how to design an injection molding:(a) functional requirements,(b) long-term consequences (dimension stability and…