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.

what is automotive injection molding

Injection molding is a manufacturing process for producing parts by injecting molten material into a mold. Injection molding can be performed with a variety of materials, including metals, glasses, elastomers, confections, and most commonly thermoplastic and thermosetting polymers. Material for…

history of mold designer

After the Second World War, people started using plastics more and there was a need for people who could design molds for plastic products. At first, these molds were made by artisans in tool and die maker shops. These artisans…

Common Rules for Runner Systems

No matter what type of runner system you’re using, there are some basic rules to keep in mind. Unfortunately, some of these requirements may conflict with each other, so you’ll need to find the best compromise.Rule 1: Decline of pressureThe…