What are the advantages of cold extrusion compared to other processing techniques?

Compared with other processing techniques, cold extrusion has the following advantages:

1) Save raw materials. Cold extrusion is the use of plastic deformation of metal to make parts of the desired shape, which can greatly reduce cutting and improve material utilization. The material utilization rate of cold extrusion can generally reach more than 80%.

2) Improve labor productivity. Using cold extrusion process instead of cutting to manufacture parts can increase productivity several times, dozens of times, or even hundreds of times.

3) The workpiece can obtain ideal surface roughness and dimensional accuracy. The precision of the parts can reach IT7~IT8 grades, and the surface roughness can reach R0.2~R0.6. Therefore, parts processed by cold extrusion are generally rarely re-cut, and only need to be fine-ground where the requirements are particularly high.

4) Improve the mechanical properties of parts. The cold work hardening of the metal after cold extrusion and the formation of reasonable fiber streamline distribution inside the part OEM Cold Forming Anchor Fasteners Manufacturers  make the strength of the part much higher than that of the raw material. In addition, a reasonable cold extrusion process can form compressive stress on the surface of the part and improve the fatigue strength. Therefore, some parts that originally need heat treatment and strengthening can be omitted after cold extrusion process, and some parts originally need to be made of high-strength steel, and can be replaced by lower-strength steel after cold extrusion process.

5) Parts with complex shapes that are difficult to be machined can be machined. Such as special-shaped sections, complex ier cavities, ier teeth and ier grooves that are invisible on the surface.

6) Reduce the cost of parts. Because the cold extrusion process has the advantages of saving raw materials, improving productivity, reducing the amount of cutting of parts, and replacing high-quality materials with inferior materials, the cost of parts is greatly reduced.