High Speed Thread Rolling Machine

Thread rolling is a metal forging process that forms screw threads by passing material under high pressure through a set of hardened dies. In the thread rolling machine, dies are skewed or pitched relative to one another, so their axes are not parallel.Thread rolling machines are used to produce screws, bolts, and studs. Thread rolling is a cold-form forming operation used to form external screw threads in a blank. During the thread rolling process, a hard die is pressed onto a rotating workpiece (also called a blank) that is attached to the thread rolling machine.Thread rolling is a cold working process where a machined blank is compressed between rotating or reciprocating dies, whose thread profile is ground into the dies. As the blank cylinder is penetrated by the dies, the metal flows into the die cavities and forms the thread profile into the part.