Tag
#joining
3 topics across all disciplines.
Resistance spot welding
How a spot weld actually forms, what current, time and electrode force each control, why coated and high strength steels fight the process, and how a weld is judged by peel test and nugget diameter rather than by how it looks.
Adhesive bonding and mechanical joining
Structural adhesives, self-piercing rivets, clinching and flow drill screws — the joining methods that exist because aluminium and steel cannot be spot welded together, and what each one demands of the joint design.
Laser welding and brazing
Keyhole and conduction welding compared, why laser welds are narrow and fast and distort little, what a tailor welded blank buys, and why laser brazing exists for the one joint a customer actually looks at.