Thread Rolling Cylindrical Dies is also called Thread Rolling Dies, mainly used for external thread processing, specifications include Metric, UNC / UNF, NPT / NPTF, RC / RP, BSW, BSF, Whit.s., Whit., PT & PS, US Tube NPT & NPS, Trapezoidal threads (English and metric) and bicycle threads, etc. Its precision level is classified into levels 1, 2, and 3, It has 2- and 3-Die Systems, so cylindrical Die mechanism can be classified as “Two rollers Die” and ”Three rollers Die”, meaning two or three areas of insertion.
Cylindrical Dies are ideal for a wide range of precision threaded parts. They are made for through-feed rolling and In-feed rolling. The quality of Thread Rolling Dies is stable and directly affects the production speed, yield, and efficiency of threads, and has a significant impact on the overall performance of the product.
How to choose the material of the thread rolling dies?
Thread rolling cylindrical dies is a mold that deforms the metal at normal temperature, and the accuracy requires high. When rolling the metal, the frictional force of a large periodic extrusion and circumferential direction is subjected to a large periodic extrusion, and the working conditions are harsh, and the damage form is: wear, break, and disintegration.
Therefore, the choice of thread rolling dies material is very important. At present, the main materials in the market have Cr12MoVo or CR12, and there are 9SiCr, CrWMn, with high temperatures, river, and high wear resistance, the latter is quenching. Less use. In order to improve steel tissue, improve its toughness, to further increase the wear-resistant thread rolling dies preferably the material is CD53, better than Cr12MoVo, good toughness.