Projection Welding For Nut. Projection shape varies due to the weld-nut manufacturing method cost and final product-design requirements. A must-read for anyone involved in welding.
Projection welding is a resistance welding process of joining two sheets or a sheet and a thick component or a small component like nut to a big body like automotive chasis by making raised portions or projections on one of the components where weld nugget is. Brackets spigots and weld nuts to sheet metal where there is access from only one side and for making attachments to solid forged or machined parts. A fourth projection design is the corner projection commonly used to plug a hole in a reservoir.
SEKI provides consistent efficient nut and bolt feeding solutions for projection welding applications without constant vibration.
Locates and welds three projection weld nuts automatically. Weld sections of typical projection welds are shown in Figure 3. The projections might be round dimples circular elongated ridges or else weld nuts prolonged corners. Projection shape varies due to the weld-nut manufacturing method cost and final product-design requirements.