Thread rolling is a metal rolling process that is used to make threaded items such as screws and bolts. It entails pressing and rolling the material between two dies to create threads in the metal of a blank bar or tube. It can also be used for knurling and other operations. Thread rolling using two rolling dies in a thread rolling machine is essentially a cold forging method that produces the metal's fibres rather than cutting it. The advantage of this process is that it not only produces commercial screw threads in huge quantities in the quickest and most exact way possible, but it also produces threads with higher tensile strength, shear strength, and wear resistance than threads generated by cutting.
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