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Thread: How Do I Reshape This V Gouge?
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15th September 2012, 06:30 PM #1
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How Do I Reshape This V Gouge?
I bought this V gouge from Ebay. It has been ground unevenly on both sides. Looks like quite an aggressive removal of metal, I assume done on a high speed grinder. If it had been over heated, are bluing marks always visible as a tell tell sign?
I have a Tormek BGM 100 bench grinder jig that was thrown in free when I bought some Tormek jigs. Tormek says, " These instructions are exclusively for HSS turning tools, since dry grinding at high speed is not suitable for ordinary carbon steel tools
due to the risk of overheating and its aggressive steel removal. "
That said, is it possible to reshape this V gouge back to working condition? It would take forever on my wet stone grinder.
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15th September 2012, 10:47 PM #2
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Hi. I would suggest you do it entirely by hand - exactly because it takes forever , so whatever mistake you make ,it happens SLOWLY
. You may think I'm crazy ( and you'll be right 
) but with my first V-tool sharpening just by hand I removed a full ten milimeters before I got some passable edge...I wont forget that night ... as it took me a whole night to do it
It's a slow and painful process...the secret is, dont mind the pain.(Ian Norbury)
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Ivan Chonov
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15th September 2012, 11:55 PM #3
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Square it off and start again. Treat each tyne as a separate chisel that happen to be attached. I agree with Aresano, it may take a while by hand, but its a lot better than taking off too much on one side or the other and having to start again. You don't have to take all that much off anyway. Mightn't take as long as you think.
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16th September 2012, 06:21 AM #4
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What sharpening equipment do you have? and how are you with straight chisels?
Paul
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16th September 2012, 09:20 AM #5
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I agree with Whittling = square off the end. Draw a 20 degree angle on some card and work by hand. As if there are two chisels joined. Try to keep the pressure even and count the strokes, equal for both faces. I believe that power sharpening, trying to keep the two equal, will be more difficult.
Remember: you only have to do this once to smarten the tool up.
I've reworked carving tools, beginning with basic shaping with a 3500+rpm grinder. Little bit. little bit to keep from heating it up. Worked OK but the task you present here will take some time and finesse.
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