Have a mundane part that we need done that is a bit outside our scope. We have to duplicate a little OEM part for an assembly. The previous part is punched and works just fine. Part is roughly .850x1.750 and .08"thick. There are two holes that are approx 3/8" diam. I am sure A36 would be just fine for this but we can look at other alloys. Not just stress on it.
I will say that the previous part is case hardened but due to the thickness, it is pretty much through hardened. It is more for abrasion resistance than anything but I think engineering is look at possibly punching a higher grade steel and foregoing the HT for it.
I can only estimate that we will probably need 300-500 of them for now. We really don't want to even order that many until we know all is a go.
Regarding tolerance, the OD of the part is fine at +/- .010 or so. the holes we would like to see +/- .005 but if that is an issue, we can shoot for bottom of tolerance and give them a quick ream.
I will say that the previous part is case hardened but due to the thickness, it is pretty much through hardened. It is more for abrasion resistance than anything but I think engineering is look at possibly punching a higher grade steel and foregoing the HT for it.
I can only estimate that we will probably need 300-500 of them for now. We really don't want to even order that many until we know all is a go.
Regarding tolerance, the OD of the part is fine at +/- .010 or so. the holes we would like to see +/- .005 but if that is an issue, we can shoot for bottom of tolerance and give them a quick ream.