sharpening cutters

sharpening cutters

This topic has 4 replies, 4 voices, and was last updated 15 June 2012 at 15:37 by Russell Eberhardt.

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14 June 2012 at 20:02 #16824
Rich2502
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@rich2502
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14 June 2012 at 20:02 #92547
Rich2502
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@rich2502
How would i sharpen some valve seat cutters i have, they are probably HSS.

I'm thinking stone them ? Or could i send them off to be done properly ?
15 June 2012 at 09:59 #92570
Gordon W
Participant
@gordonw
Depends on what sort of valve I suppose, if for full size car engine I would hand stone the cutting faces and try it, sometimes works. Probably cheaper to buy a new one than have it ground
15 June 2012 at 11:23 #92577
pierre ehly 2
Participant
@pierreehly2
Hi,

If the cutters are not half destroyed, stonning is possible.( not free hand)

But keeping the right/good angle is Important (for matching with valve)

You have to built a fixture like a " watchmaker-filing-guide" , the rollers will

guiding your stone flat.

have a sunny WE

pierre
15 June 2012 at 15:37 #92587
Russell Eberhardt
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@russelleberhardt48058
If you stone it on the front edge rather than the top of the teeth there is no dager of loosing the correct angle and you should be able to do it by hand if it is not too bad.

Russell.
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