What is the time gap between carburising and hardening
What is the time gap between carburising and hardening
(OP)
I carburise the material (EN36 C and AISI 9313) at 920 deg C. and cool it to 700 deg. C in the furnace and unload to cool it to room temperature in air. After this the material taken up for hardening and tempering. I want to know is there any specific time interval within which the hardening should be carried out after carburising to avoid resudaul stresses. Will these residual stresse effect the machinability?





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