Mochini oa preheating oa induction o sebelisoa hangata pele o thatafala kapa maemo a welding. Bakeng sa quenching process preheating, karolo e etsang induction quenching process after preheat treatment, e ka rarolla bothata ba likarolo tse futhumetseng tsa deformation nakong ea ts'ebetso ea ts'ebeletso.

  Ho feta moo, e ka fokotsa ho khopama ha workpiece nakong ea ho thatafatsa, ho ntlafatsa kabo e thata ea lera, ho eketsa botenya bo thata, ho fumana sebopeho se setle sa metallographic sa workpiece le khatello e setseng ea khatello, le ho felisa mapetsong a tima. Preheating bakeng sa tshebetso tjheseletsa ka liehisa lebelo tsidifatso ya senotlolo weld tsidifatso mefuta e fapaneng ya mocheso, thibela ho feta-thata, le ho fokotsa ductility tsa weld le mocheso-a ameha sebaka. E ka fokotsa khatello ea kelello ea weld le tšepe e haufi, haholo-holo bakeng sa manonyeletso a phahameng a khatello ea kelello.