Cold extrusion features a massive forming process to produce both hollow and solid blanks in a multistage production process (multistage pressing).Presses with a very high closing force carry out cold forming of the material under a high pressure until the desired shape is achieved.
The material is extruded there by application of a high pressure. An upper die presses the blank through a forming and cross-section-reduced die orifice - the mold.
Longkou Dayuan,is able to make products with complicated geometry and a high forming degree.
Advantages of cold extrusion process:
·high dimensional stability
·excellent surface finish
·continuous fiber flow line thanks to forming
·efficient process for mass production
The piston blank is used for automobile braking by cold extrusion process, the piston is made by high quality carbon steel (material S10C and S20C). We currently produce piston which diameter from∮34 to ∮75. Cold extrusion features a massive forming process to produce both ...