what is welding mark?
as an injection molding engineer, he should be very familiar with welding mark, the thread mark formed at the front confluence of two or more melt flows in the cavity is called welding mark or welding line. […]
For some plastic parts, other causes lead to warping or twisting
Different gate position and cooling time often build stresses, then lead to warping or twisting, but also we find other causes. in mold design, […]
During molding process, your plastic parts will meet warpage problem
For an Experienced molding engineer, that is a common problem, but for a fresh molding engineer, maybe It is worth mentioning, at first, in almost every plastic part, there are different thickness, thick sections cool slower than thin sections, […]