Plug weld... I call it a rosette weld even though I'm wrong

I always call these rosette welds even though I've been re-educated to call them plug welds by Massic Effect. Thanks for the info ME, someday I'll remember to call them by the right name.

I like fixtures

Cut, machine, weld, bolt. Made this to help with supporting an evo sportster frame while cutting the rear section off... aaand helping locate the new rear section prior to welding.