Office Chair Hardware Production: Stamping, Piercing & Welding

The video presents the complete processing of chair hardware at MSDA's metal workshop. The punch press first blanks steel strip into workpieces; the die then locates, pierces and cuts steel tubes in a single stroke, with hole position accuracy guaranteed by the tooling itself. In batch stamping, operators continuously feed and unload material to maintain a steady production rhythm. At the welding station, the torch travels along a jig-guided path, fusing armrest brackets and structural connectors into integrated parts. Finished hardware is inspected, packed and routed to the assembly line, where it is combined with plastic frames and upholstery into finished chairs.