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Posted in response to Bent diamond blade from Jim Sebela on October 26, 2011 at 02:25:14:

Re: Bent diamond blade

In answer to your question on how to fix a cupped or bent diamond blade:

Stiffening saw blades and fixing a dished blade:

This procedure is simple and can be applied not only to thin mud blades but also used to fix diamond blades which have become dished during use. Lay the blade on a flat metal surface such as a table saw. (I use a piece of metal �� thick and 8�X8� that I bought at a scrape metal dealer for $5.00.) Starting about an inch from the center hole, tap lightly with a ball peen hammer or an ordinary carpenter�s hammer will do if you don�t have a ball peen hammer, being sure that each blow lands squarely. Tap every inch or two in a spiral path, about the center, turning the blade meanwhile, and gradually bring the line of blows out toward the rim of the blade. (Be very careful not to hit the diamond edge of the blade. Turn the blade over and repeat on the other side.

I have used this only on a 4� and a 6� blade. There has been a time that the blades was badly cupped that I repeated the process and it has worked.

Try this process with a worn out blade the first time. I use this system on small blade both 4� and 6�. The next time I have larger blade that is worn out I am going to damage it and try to fix it.

Joe Davis

From Joe Davis - November 21, 2011 at 03:47:27

Message: 70050

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