What is the Method of Cavity Cold Extrusion Press
What is the Method of Cavity Cold Extrusion Press? A cold extrusion hydraulic press is a kind of equipment that implements the extrusion molding process. Mainly used for extruding and forging metal materials, such as upsetting, drawing, drilling, bending, stamping, plastics, etc. cavity cold extrusion press 1. Selection of cold extrusion press machine Cavity cold extrusion press generally uses a hydraulic press machine. The requirements for the hydraulic press machine are: good rigidity, accurate piston guide, and stable and reliable operation. At the same time, there must be a safety protection device to prevent the extrusion punch from breaking or the billet from being squeezed and splashing out to injure people. 2. Design and manufacture of extrusion punches The size calculation method of the cold extrusion punch is as follows: Its processing technology is: billet preparation → design and manufacture of punches → billet and punch surface treatment → die loading → extrusion