Cold heading is the use of the plasticity of metals to apply pressure or cold draw using cold mechanics to achieve the goal of solid deformation of metals. On the surface, cold heading products look more beautiful and have better finish than hot heading products. In terms of use, hot heading nuts generally have higher hardness and higher strength than cold heading products. For users with high requirements, there are significant differences in materials.

A forging method of roughening the top of a bar or wire at room temperature. Cold heading is mainly used for manufacturing parts such as bolts, nuts, nails, rivets, and steel balls. Forging materials can be copper, aluminum, carbon steel, alloy steel, stainless steel, and titanium alloy, with a material utilization rate of 80-90%.

Cold heading is often carried out on specialized cold heading machines, enabling continuous, multi-station, and automated production. On a cold heading machine, it is possible to sequentially complete processes such as cutting, heading, accumulation, forming, chamfering, wire rolling, diameter reduction, and edge cutting. High production efficiency, up to 300 pieces/minute or more, with a maximum diameter of 48 millimeters for cold heading workpieces.

The schematic diagram of the cold heading bolt process is a typical process for cold heading bolts. The multi-station nut automatic cold heading machine is a multi-station nut automatic cold heading machine. The bar material is automatically fed into a certain length by the feeding mechanism, and the cutting mechanism cuts it into blanks. Then, the clamp conveying mechanism sequentially sends it to the accumulation pressing and punching stations for forming.