Resources

Wire cutting, also known as Wire Electrical Discharge Machining (Wire EDM), is the third major critical operation in plastic injection mold manufacturing. While CNC and sinker EDM handle cavities and cores, wire EDM specializes in precision through-holes that cannot be drilled or milled accurately. When selecting an injection mold maker in China, engineers should confirm the supplier’s wire...

Electrical Discharge Machining (EDM) is the second major critical operation in plastic injection mold manufacturing after CNC machining. Many engineers assume that CNC alone can achieve final mold dimensions, but EDM is essential for small internal corner radii, deep ribs, and complex textures that may be difficult or impractical to produce with conventional CNC milling tools. When EDM...

Introduction CNC machining is the first critical operation in injection mold manufacturing. Many engineers underestimate its importance, assuming that precision comes only from finishing operations. However, the quality of CNC machining directly affects subsequent semi-finishing, EDM, other mold components tooling, mold accuracy and the dimensional consistency of the final injection molding parts. PTMS uses the highest quality raw...

In injection mold design, the slider is one of the most common mechanisms for handling side holes, side recesses, undercuts, and complex lateral features. Its value lies not in whether the feature can be produced, but in whether it can achieve smooth demolding while maintaining mold strength, molding stability, and long-term maintainability. Most slider problems don’t come from...