How To Grind A Parting Tool

Im assuming youre talking about your average HSS parting blade including P-type If you grind the top of the blade the tip becomes lower than the original top.

How to grind a parting tool. I couldnt find any specific information on angles or depths so this. Put the tool on center if you put the tip below center you run the real risk of having the part roll over the bit this breaks things. Ensure the parting tool is perpendicular to the face of the chuck you can use a 1-2-3 block whose surfaces are ground to be parallel to one another.

Grinding the end face of the tool The grinding rest was tipped to give the required end relief angle and the fence adjusted to give the front cutting edge angle. Large adaptors can be clamped using two split bearing caps. 1 Its difficult to sharpen the bevels of a parting tool and arrive at the correct side profile with the ears leading the nose.

Again the front cutting edge angle was not important although it is usually set to make the tip and less than 90 º. A demonstration on how to sharpen a lathe parting tool. The results are amazing.

This flattens and dulls the cutting edges but you can use these flat edges as a guide to maintain the desired profile. When machining with long overhangs it is especially important to mount the bar correctly to ensure enough clamping contact. A different and very effective grind for your parting blade.

A little low will cause a The tip of the tool should be exactly perpendicular to the workpiece. Due to the angle of the table the belt will start to cut at the right rear of the top surface of the bit and as you grind the ground surface will approach the side cutting edge and cut into it. These blanks have flat tops which allow for the grinding of many different shapes.

This will result in a stable parting tool set-up. Recommended clamping length is 4 x bar diameter d. Loosen the tool post align the edge of the Be careful to not drop the 1-2-3 block.