Is this die polishing?

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Rondor
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Joined: Mon Apr 25, 2022 1:38 am

Is this die polishing?

Post by Rondor » Thu Jun 09, 2022 2:08 am

A pic of my 79P with complete lower curl separation next to the designers initial 'M'.

https://www.dropbox.com/s/rt9qc7rsap5pw ... P.jpg?dl=0

Is this just an overpolished old die?

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messydesk
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Re: Is this die polishing?

Post by messydesk » Thu Jun 09, 2022 2:46 am

It's an overpolished die. Could be a brand new die that was just polished too much before being used.
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Rondor
Posts: 18
Joined: Mon Apr 25, 2022 1:38 am

Re: Is this die polishing?

Post by Rondor » Thu Jun 09, 2022 2:50 am

Thanks very much. It is interesting in that the die does not look old otherwise so your explanation makes sense for sure.

RogerB
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Joined: Mon Nov 04, 2019 2:30 pm

Re: Is this die polishing?

Post by RogerB » Sat Jun 11, 2022 4:21 pm

The final step in die manufacture was a dip in acid to remove "fire scale" from final hardening and tempering. Working dies were not normally polished before first use unless there was a lingering defect.

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