The Tungsten carbide Cold heading dies extrusion process is an important part of forming technology. Cold extrusion refers to the cold state of the metal billet into the mold cavity, under strong pressure and a certain speed, forcing the metal from the mold cavity extrusion, so as to obtain the required shape, size, and have certain mechanical properties of the extruded parts. Obviously, the cold extrusion of brass jewelry is to rely on the mold to control the flow of metal, relying on a large number of metal volume transfer to form parts. Cold extrusion has the following advantages: 1, saving raw materials.
Cold extrusion is the use of plastic deformation of the metal to make the required shape of the parts, thus reducing the cutting process, improve material utilization. Cold extrusion material utilization rate can generally reach more than 80%. Tungsten carbide pallets
2, improve labor productivity.
Cold extrusion process instead of cutting parts, can make the productivity increase several times, dozens of times, or even hundreds of times.
3, the parts can be ideal surface roughness tungsten carbide cold heading dies and dimensional accuracy.
The accuracy of the parts can be up to IT7 ~ IT8 level, the surface roughness can be up to R0.2 ~ R0.6. Therefore, the parts processed by cold extrusion is generally very little cutting, only in the requirements of a particularly high place for fine grinding.
4, improve the mechanical properties of parts. zhuzhou carbide factory
Cold hardening of the metal after cold extrusion, GT55 Tungsten carbide pellets as well as the formation of a reasonable distribution of fiber flow lines within the parts, so that the strength of the parts is much higher than the strength of the raw material. In addition, a reasonable cold extrusion process can make the surface of the parts to form compressive stress and improve fatigue strength. Therefore, wire drawing dies some of the original need for heat treatment to strengthen the parts with cold extrusion process can be eliminated after the heat treatment process, some of the original parts need to be manufactured with high strength steel, cold extrusion process can be used after the lower strength of the steel instead.
5, can process complex shapes, difficult to cut parts.
Such as shaped cross-section, complex cavity, teeth and the surface of the invisible groove.tungsten carbide wire drawing dies
6, reduce the cost of parts.
Due to the cold extrusion process has the advantages of saving raw materials, improve productivity, reduce the amount of cutting parts, available poorer materials instead of high-quality materials, thereby greatly reducing the cost of parts.
Post time: Aug-16-2023
