There are many advantages to engineering products for Plastic Injection Mold manufacturing. In comparison to machined parts, plastics are inexpensive to manufacture and parts can be manufactured in no other way possible. Once tooling and the molding parameters have been qualified production runs produce high yields with little handling or setup fees. However before you are off to a worry-free production run it’s important the part and the manufacturing process meets acceptance and quality requirements of a first article inspection. Failure to optimize plastic part designs for injection molding limits the maximum potential quality of molded parts, increases manufacturing defects, and increases production scrap rates that lead to project delays, hidden costs, and unsatisfied customers.
The injection molding process is complex the molded part is susceptible to many of the inherent variations throughout the molding process. In the injection molding process, granular plastics are fed by gravity from a hopper into a heated barrel. Inside the barrel the plastic granules melt and move along the barrel by a screw plunger. The plastic is forced through a nozzle, allowing it to enter the Injection molds runner system where it travels to the molding cavity almost instantly transitioning back to a solid state. These unknown variations in the filling and packing cycle contribute to how the material fills the mold, shrinkage, warping, weld lines (fracture lines), air traps, and short shots.
SolidWorks Plastics provides insight to these variables that can lead to a higher percentage of first shot defect-free molded parts, less project delays, and lower hidden tooling rework costs. SolidWorks Plastics gives you practical design advice to diagnose and resolve potential problems and make informed design decisions for your plastics part design or injection mold designs. Predicting ease of fill, gate location, and runner balancing reduces or eliminates mold rework, lowers costs, speeds your time to market, and allows you to make more informed decisions.