"Spitznagel" was the name many years back for the spot-weld-then-slide-hammer style. Literally, "spits nails" in German.
There are some of those Russian guys in Spokane. The cars are a horror show in person, not to mention the non-ICAR levels of repair. Sometimes the folks that bought the cars would come in for subsequent repairs or related post-repairs, and I'd turn them away. You open those cans, and they blow up in your face.