Cold pier processing to choose the material

Whether it is in life or in industrial production, the use of screws, instrumentation, automobiles, and electrical appliances are all indispensable. Most of the previous screws were machined using cutting methods. Nowadays, most of the cold piers are used. The reason why cold-moulding processing is more and more widely used must be justified. The cold pier is processed through the cold heading machine and can be processed at room temperature, which is safe and convenient. Of course, there are some problems with cold-crest processing. For example, some cold pier steels will show cracking of cold piers, mainly due to scratches on the surface of the material, defects such as folding, or impurities in other materials inside. These stresses will cause stress concentration during stress. , causing cracking. Therefore, it is better to choose a material with good surface quality and high purity when it is being processed. The above is a two-sided analysis of the cold pier processing by Xiao Bian, I hope to help you