Hand Ground Parting Tool Question

I hope you ground the brazed carbide tool before you used it.
Jimsehr
 
Last edited:
I hope you ground the brazen carbide

The commercial carbide notoriously is not 'sharpened," just ground. It may have no relief with no honed edges. They gotta be taken care of before use.
 
Tom is right brazed carbide should be sharpened before use. I think that is why new guys don't like brazed carbide tools.
Jimsehr
 
Sharp carbide is great for aluminum and other softer metals. It is not to good for some tool steels, interrupted cuts, and other difficult metals, because it will chip if ground to a sharp edge. Inserts are the same way, some are sharp and some are fairly dull, purposefully. Some are also cutting with a negative rake. The dull and negative tool can still cut just fine, just takes more power to drive it. It can still leave a good finish if done correctly on the right materials and using manufacturer's published methods on a rigid machine. For hobby machinists, sharp is often better. Yes, tool relief and clearance angles are important, and import carbide tools often are not even close to something that can cut, but are easily fixed with a green or diamond wheel.
 
You must log in or register to reply here.
Back
Top