Have you ever seen thread rolling before? Thread rolling is a metal forging process that forms threads into the mirror image of a roller die. It does not remove any metal from the workpiece. Instead, thread rolling uses hardened steel dies to displace and mold ductile metals. Source https://t.co/NET8mw5fia #metallurgy #metallurgicalengineering #materialsscience #mechanicalengineering #materialsengineering #rolling | Metallurgical engineering