S-7 plates warped in heat treat

swamp dweller · Dec 16, 2021

So I had 2 S-7 plates heat treated to 52/54 R/C. They are 8" X 8" X 1" thick. I left .010 P/S grind stock on them for finish grinding. Needless to say, when they came back they were warped so bad they will not clean up. I have never had S-7 distort this bad. I'm looking for a recommendation for a company that I can send these to to be salvaged if possible.The heat treater is not being helpful and the places I found on line saying they do this work are not responding. Help! Thanks

D Nelson · Dec 16, 2021

I just made a die block from s-7 5x8x2-1/4 thick I put the dowels in before heat treat when I got it back dowel moved .0045 I left .02 for grind stock But I did rebore and sleeve the dowel hole to fix it.
Sux don’t it
Don

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D Nelson · Dec 16, 2021

here is a pic
Don

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boslab · Dec 16, 2021

Nice bit of machining, out of my league tbh, well done very skilled work
Mark

Mtndew · Dec 16, 2021

swamp dweller said:
So I had 2 S-7 plates heat treated to 52/54 R/C. They are 8" X 8" X 1" thick. I left .010 P/S grind stock on them for finish grinding. Needless to say, when they came back they were warped so bad they will not clean up. I have never had S-7 distort this bad. I'm looking for a recommendation for a company that I can send these to to be salvaged if possible.The heat treater is not being helpful and the places I found on line saying they do this work are not responding. Help! Thanks

You should have a company that is local that straightens parts I would imagine.
Here in Michigan we use TDH out of Troy.

TDH INDUSTRIES, INC. | Troy, MI 48083

swamp dweller · Jan 17, 2022

Mtndew said:
You should have a company that is local that straightens parts I would imagine.
Here in Michigan we use TDH out of Troy.

TDH INDUSTRIES, INC. | Troy, MI 48083

Thanks,Mtndew. I sent the plates to Tom and he did a great job and the price was right also. Thanks again.

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S-7 plates warped in heat treat

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