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- May 18, 1999
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Years ago we used this product in different sized tool blanks for cutting tools on automatic screw machines.
I was told then that it didn't make good form tools that were sharpened from the top at a given angle and then reinstalled back in the machine with the edge on center because the material could be porous and also softer the closer to the center of the bit as it was ground. I was also told it wouldn't make a good knife because it was too brittle for that use. I was also told that it got its hardness from composition and not by heat treating which is why it had a high red hardness.
One of the products we used was called Tantung® and sometimes you could see the porosity in the center of it. (I can't remeber about the Stellite.) Form tools could be made from it, BUT it was cast in the general shape with a minimum of grinding to brng it too finish size.
I recall using two varities of this product. One was more brittle than the oher. The one I used most was called Tantung G® and I am wondering if it may have been a type of Stellite?
It may have been of a different breed than the thread on the material is talking about. I am wondering about this as the person keeps talking about
sending drawings as to what a person wants.
This could be due to the fact that it is a cast material and needs to be cast in the general shappe in order to make a knife?
I am not wishing to start any flames or such. Just a curious old machinist that hasn't worked in a while and has forgotten way too much, because I don't use it anymore.
Comments and Opinions?
------------------
>>>>---¥vsa---->®
"Know your own bone, gnaw at it, bury it, unearth it again."
'Thoreau'
Khukuri FAQ
Years ago we used this product in different sized tool blanks for cutting tools on automatic screw machines.
I was told then that it didn't make good form tools that were sharpened from the top at a given angle and then reinstalled back in the machine with the edge on center because the material could be porous and also softer the closer to the center of the bit as it was ground. I was also told it wouldn't make a good knife because it was too brittle for that use. I was also told that it got its hardness from composition and not by heat treating which is why it had a high red hardness.
One of the products we used was called Tantung® and sometimes you could see the porosity in the center of it. (I can't remeber about the Stellite.) Form tools could be made from it, BUT it was cast in the general shape with a minimum of grinding to brng it too finish size.
I recall using two varities of this product. One was more brittle than the oher. The one I used most was called Tantung G® and I am wondering if it may have been a type of Stellite?
It may have been of a different breed than the thread on the material is talking about. I am wondering about this as the person keeps talking about
sending drawings as to what a person wants.
This could be due to the fact that it is a cast material and needs to be cast in the general shappe in order to make a knife?
I am not wishing to start any flames or such. Just a curious old machinist that hasn't worked in a while and has forgotten way too much, because I don't use it anymore.
Comments and Opinions?
------------------
>>>>---¥vsa---->®
"Know your own bone, gnaw at it, bury it, unearth it again."
'Thoreau'
Khukuri FAQ