Hand Tools

Subject:
All metal wear not equal

Bill Tindall, E.Tn.
I have had the opportunity to discuss wear with a metallurgist that seems to know his way around knife steel. Particle steels have two attributes of interest to us. They are tougher than their coarser particle cousins and they are relatively more resistant to "soft abrasive wear" than material removal by grinding against hard sharp particles. It is information like this fact that makes wear data generated on wood with silica possibly different from data generated on typical furniture wood. Where as CPM 3V fell behind XHP in David's testing it's load of highly abrasion resistant vanadium could have made a larger difference in planing something with silica. (BTW, one can see quartz crystals in the SEM pictures of wood containing silica.)

The tabulated "wear" values from the manufacturer are useless to us unless the test generating the data is revealed. There are many "wear" tests available. Some tabulations are testing adhesive wear if the purpose was to generate data relevant to die metal. In other cases it could be grindability, important to fabrication. Etc. We should not expect correlation among these tabulations.

The data most relevant to us is to be found on knife forums. For example, a tabulation of resistance to dulling by cutting cellulose (rope) seems to be relevant and indeed these data correlate with David's data perfectly.

Messages In This Thread

Heat balance at plane blade tip
Re: Heat balance at plane blade tip
Re: Heat balance at plane blade tip
Re: Heat balance at plane blade tip
Re: Heat balance at plane blade tip
Re: Heat balance at plane blade tip
Re: Heat balance at plane blade tip
K&K SEM pictures
Re: K&K SEM pictures—here they are *LINK*
Re: K&K SEM pictures—here they are
Re: K&K SEM pictures
Re: K&K SEM pictures *LINK*
Re: K&K SEM pictures
The data shown above
Re: The data shown above
Re: The data shown above
Re: The data shown above
Re: Agree on three points
Question about setting blade exposure
Re: Question about setting blade exposure
Re: Question about setting blade exposure
Re: Question about setting blade exposure
Is planing the way to level this surface
Toothing planes
Gosh...
Re: Gosh...
Re: Gosh...
Re: Is planing the way to level this surface
Re: Question about setting blade exposure
Re: Question about setting blade exposure *PIC*
summary?
Re: summary?
Re: Question about setting blade exposure
A small experiment
Re: A small experiment
question
Re: question
clever setting procedure; blurring? *PIC*
Re: clever setting procedure; blurring?
Holly inlay properties
Divergence from the classic
Re: A small experiment
Re: A small experiment
Re: totes etc.
Re: Handle shaping method and tools... *LINK*
Re: A small experiment
Re: A small experiment
I used to get fired up...
The whole translation/review—for the obsessed *LINK*
Re: The whole translation/review—for the obsesse
Re: The whole translation/review—for the obsesse
Re: The whole translation/review—for the obsesse
Where is this going?
The purpose of the original test...
Re: The purpose of the original test...
What's allowed on forums?
you underestimate the interest
Re: you underestimate the interest
bored to tears ?
Re: bored to tears ?
There is one thing remaining..
My suspicion...
Re: My suspicion...
Re: My suspicion...
Another table from SB
Yes - the confusion without XHP
Odd thing about CTS-XHP wear resistance
All metal wear not equal
Re: This isn't Instagram
Re: This isn't Instagram
Re: The whole translation/review—for the obsesse
Re: not quite, but find what you like...
David - keep at it
Re: David - keep at it
Re: David - keep at it
I don't understand social media
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