Answer
Rage damuwa tsari ne na zafin jiki bayan nadi wanda ya zama dole don daidaita yanayin yanayin magudanar ruwa. Lokacin murɗa waya mai lebur zuwa siffar madauwari da samar da raƙuman ruwa, ana shigar da matsananciyar damuwa a cikin kayan. Ba tare da kawar da damuwa ba, waɗannan matsalolin na ciki zasu haifar da bazara don 'raƙuri' ko canza tsayinsa na kyauta akan lokaci, koda ba tare da kaya ba. Don karfen carbon, ana yin kawar da damuwa akan $600^\circ F$ zuwa $700^\circ F$ ($315^\circ C$ zuwa $370^\circ C $). Wannan zafin jiki yana da girma sosai don ba da damar kwararar micro-roba don sake rarraba damuwa na ciki amma ƙarancin isa don guje wa canza yanayin yanayin martensitic. Wannan yana tabbatar da cewa bazara ta kiyaye tsayinta 'kamar yadda aka ƙera' da halayen tsayin aiki-a-aiki a duk rayuwar sabis ɗin.
