Hardness, directly opposite side of stamped parts number
Hardness, directly opposite side of stamped parts number
(OP)
Having a bit of an argument here.
I was always taught not to do hardness directly opposite of the stamped part number.
history:
Material: SAE 1045
part is heat treated to HRC 25-29
thickness is 3.2mm
Yay or nay?
thanks
I was always taught not to do hardness directly opposite of the stamped part number.
history:
Material: SAE 1045
part is heat treated to HRC 25-29
thickness is 3.2mm
Yay or nay?
thanks





RE: Hardness, directly opposite side of stamped parts number
Are you well within the limits for min thickness?
I wouldn't do it there unless you want to know the effect of the stamping.
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P.E. Metallurgy, Plymouth Tube
RE: Hardness, directly opposite side of stamped parts number
RE: Hardness, directly opposite side of stamped parts number
It might be ok to take the reading opposite the stamped number in some cases, depending on:
The material.
The thickness of the material.
The size and depth of the stamping.
Probably so other things.
The concern is likely that stamping might work-harden the material "around" the stamp, and around could include the opposite surface.
In this particular case, assuming the stamp is done before the heat treat, probably it doesn't matter.
As a matter of simplicity, what you were taught is the way to go.
RE: Hardness, directly opposite side of stamped parts number
"If you don't have time to do the job right the first time, when are you going to find time to repair it?"
RE: Hardness, directly opposite side of stamped parts number
RE: Hardness, directly opposite side of stamped parts number
Maui