Menene ka'idar injina da kwararar kayan aiki?

An raba sarrafa kayan aiki zuwa manyan hanyoyi guda biyu bisa ka'ida: 1) hanyar kwafi 2) hanyar ƙirƙirar, wanda kuma aka sani da hanyar haɓakawa.

Hanyar yin kwafin ita ce sarrafa na'urar niƙa tare da abin yankan niƙa ko abin yankan yatsa mai siffa iri ɗaya da ramin haƙori na kayan aikin.
Hanyar kafa kuma ana kiranta hanyar ƙirƙirar, wanda ke amfani da ƙa'idar meshing na kayan aiki don yanke bayanan martaba na haƙoran gear. Wannan hanya tana da madaidaici kuma ita ce babbar hanyar sarrafa haƙori a halin yanzu. Akwai nau'ikan hanyoyin da yawa, gami da gyaran kayan gini, abubuwan da aka yi amfani da su, da sauransu, a ciki ana amfani da shi, da sauransu, a ciki waɗanda aka saba amfani dasu don lokatai da kuma biyan bukata.
Tsarin mashin ɗin na kayan aiki ya haɗa da matakai masu zuwa: sarrafa kayan aiki mara amfani, sarrafa saman haƙori, fasahar jiyya mai zafi da ƙare haƙori.

Bangaren kayan aikin da babu komai a ciki sune na jabu, sanduna ko simintin gyare-gyare, waɗanda aka fi amfani da ƙirjin. An fara daidaita blank ɗin don inganta nau'in yanke shi da sauƙaƙe yanke. Sa'an nan roughing, bisa ga buƙatun na ƙirar kayan aiki, an fara sarrafa blank ɗin zuwa wani m siffar don riƙe ƙarin gefe;
Sa'an nan Semi-karewa, juyawa, jujjuya, mai siffar kaya, ta yadda ainihin siffar kayan aiki; Bayan maganin zafi na kayan aiki, inganta kayan aikin injiniya na kayan aiki, bisa ga bukatun amfani da kayan aiki daban-daban da aka yi amfani da su, akwai tempering, hardening carburizing, high mita shigar da hardening na hakori surface; A ƙarshe, an gama kayan aiki, an gyara tushe, kuma an gyara siffar haƙori.