Matthew Parkinson
Matthew Parkinson
Journeyman Bladesmith (5yr)
Honorable Member
Joined: Feb 15, 2021
Last seen: Apr 26, 2024
Topics: 47 / Replies: 491
Topic
1 year ago
Replies: 16
Views: 547
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RE: Heat treat

along with what Kevin said, I have had good experience with bumping the initial temp, up to 1650 the 1075/1080 can over refine in forging resulting i...

1 year ago
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RE: Bevel migrating

A grinder running modern ceramic belts requires pressure to cut, this is regardless of the quality or ability of the machine. If the machine can not t...

1 year ago
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RE: Bevel migrating

I see this all the time in my students work. you are re-setting the bevel to a different angle each pass. To keep the faceting from happening keep ...

1 year ago
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RE: Forging a blade

I wrote about this in my Knife Magazine column last June. I don't really have any answer then or now. Is it a forged blade .. probably. is it a we...

1 year ago
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RE: Math question

That is correct, however back when i was in machine shop school the slang/jargon was 0.003 was three thou and 0.030 would be thirty thou. Oddly ...

1 year ago
Topic
Replies: 1
Views: 269
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RE: reaching out for critiques

in this phot the fit looks good, I do see some of the same courser marks on the side (less that in the top view) looks like they may have been buffe...

2 years ago
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RE: reaching out for critiques

In this photo I see several issues the first to jump out at me is the but of the handle is not square to the blade. The second this when I opened the...

2 years ago
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RE: Help understanding why the blade failed - HT?

The photos of the crack show me a few things of interest , first the blue color indicates the crack happened after the quench before the temper or it ...

2 years ago
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RE: Help understanding why the blade failed - HT?

well I am going to have to disagree with Ed on this, thickness should be fine and that soak time in a oven at that temp should work fine, not what I w...

2 years ago
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RE: Would someone please recommend some great files for finish work?

sounds like those were/are Swiss cut files likely a pillar or flat file. the number 2 cut should leave a finish around 220grit. you can get swiss cut ...

2 years ago
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RE: Hand Engraving on JS Test Set Knives

As far as I know bluing is acceptable, I will say don't do what I did on one of the knives and use it on a partial tang. I scratched one of the fitti...

2 years ago
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RE: I thought I knew what I was doing !

if it is anything like 4340 then what you pair it will is extremally important.. we found 4340 only played well with a few other steels. 4340/5160 was...

2 years ago
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