Hand Tools Archive

Subject:
Fear of heat- any evidence?
Response To:
Re: Fear of heat ()

Bill Tindall, E.Tn.
A $500 solution has been proposed to solve a problem I am uncertain exists. That cost might drive someone to buy a thickness planer and have some change left, or an M2 blade. David could easily do the experiment. But like some of the later experiments details between users would render the conclusions uncertain among users whose conditions deviated from David's. My details might avoid loss of hardness and yours might not, it could be argued, and the experiment would settle nothing.

That said, has anyone suspected loss of hardness from grinding under careful conditions? I don't grind to the tip and anyone that does with a wheel is further removing the resulting tip with subsequent edge refinement. This situation would seem to dismiss this heat concern. I, and maybe others, don't try to get a uniform hollow. If heating is an issue the thicker places would heat less, be harder, and wear less, which should be apparent when examining dulling. In fact this experiment could be done by anyone concerned about their technique.

I only hollow grind when edge refinement finally removes the hollow. If I lost hardness from grinding the blade would become harder with each subsequent sharpening until I ground again. Had anyone seen this effect?

Have any differences between the high speed steels like M2 and CPM 3V and those tempered at lower temperature been revealed?

Loss of tip hardness will result in the tip folding in use. Might take a magnifying glass to see it. I saw it with an unusually soft Sargent blade, soft enough to scratch with a file( Rc?).

Messages In This Thread

Tormek: getting old wheel off?
Re: Tormek: getting old wheel off?
Re: Tormek: getting old wheel off
Re: Tormek: getting old wheel off
Re: Tormek: getting old wheel off
Fear of heat- not an issue
Re: Fear of heat
Re: Fear of heat
Fear of heat- any evidence?
Re: Fear of heat- any evidence?
My set up is like yours...
some heat calculations
More exercises with no exact answers
Re: More exercises with no exact answers
Re: some heat calculations
It sure as hell ain't from heat
Re: Fear of heat- not an issue
Re: Fear of heat- not an issue
Re: Fear of heat- not an issue
Re: Fear of heat- not an issue
same, but details different, and a question
Re: same, but details different, and a question
Re: same, but details different, and a question
Re: same, but details different, and a question
Question
Search surface grinder wheels, Type 1 *NM*
Wheel recommendation
Re: Wheel recommendation
Did it. Here are 2 extensive sources:
Re: Did it. Here are 2 extensive sources:
You have identified the problem
Problem 2
David, please link us to
Re: David, please link us to
I did find this I wheel
What this wheel is, technical data, flawed
Re: Fear of heat- not an issue *LINK*
All these problems aren't
already equipped vs. not
Please listen, more issues that aren't......
Re: Please listen, more issues that aren't......
Re: Tormek: getting old wheel off
Re: Tormek: getting old wheel off
Re: Tormek: getting old wheel off
Re: Tormek: getting old wheel off
Re: Tormek: getting old wheel off?
Re: Tormek: getting old wheel off?
Re: Tormek: getting old wheel of littl
Re: Tormek: getting old wheel of littl
Re: Tormek: getting old wheel off?
Similar to pulling rusted car wheels
Re: Similar to pulling rusted car wheels
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