Maganin Zafi Don Saw Blade Blank

Yawancin igiyoyi masu madauwari suna buƙatar aiwatar da tsarin kula da zafi ta yadda za a canza kayan jikin ƙarfe don sanya kayan ya fi ƙarfin kuma ya ba da damar kayan don jure wa sojojin da aka haifar yayin yanke. Ana ƙona kayan abu zuwa tsakanin 860°C da 1100°C, ya dogara da nau'in kayan, sa'an nan kuma da sauri sanyaya (quenched). Ana kiran wannan tsari da hardening. Bayan daɗaɗɗen, saws suna buƙatar daɗaɗɗa a cikin fakiti don rage taurin kuma ƙara ƙarfin ruwa. Anan ana manne ruwan wukake a cikin fakiti kuma ana yin zafi a hankali zuwa tsakanin 350°C da 560°C, dangane da abu, sannan a sanyaya a hankali zuwa yanayin zafi.