Mold Rough Machining Process

Mold rough machining is the basic pre‑process of injection mold processing. It mainly adopts CNC milling machines and vertical machining centers to perform cutting operations on mold steel blanks.

Its core objective is to rapidly remove excess material from mold steel and form preliminary overall contours and basic structures for cavities, cores and mold bases. Ultra‑tight dimensional accuracy is not required at this stage. Per industry practice, a uniform 2‑3 mm finishing allowance is reserved. Key control points include stable workpiece clamping, accurate datum positioning and even material removal allowance.

Standard rough‑machining procedures greatly boost efficiency for subsequent precision finishing. It releases internal stress of mold steel and prevents stress concentration caused by heavy‑duty cutting, so as to guarantee stable performance and final dimensional accuracy in follow‑up precision manufacturing.