How To Grind A Lathe Tool

Begin by dressing the grinding wheel.

How to grind a lathe tool. Grinding the side face of the tool. If you sharpen a tool for a SHERLINE lathe use a 14 square tool blank and keep the cutting edge up to the top of the blank. Grinding generates heat which can cause two problems.

Every ten seconds cool the bit in a bucket of water. First I start with the end of the tool Called the face and set the rest on 5 to 7 degrees depending on the material to be machined. Next look up the typical angles for the workpiece material and then follow the steps in Figure A2.

Dip the tool in coolant frequently to keep it from overheating and annealing. The cutter bit is usually made of high speed steel and held in a lathe tool holder as shown in Fig. You can grind right hand and left hand tools at the same time just by changing sides on the rest.

In this example we are making a normal right handed tool for the lathe. If the lathe tool appears sharp enough dip it in a bowl of water for cooling. Keep a small cup of water near your grinder.

The grinding rest was tipped to give the required side clearance relief and the fence adjusted to give the side cutting edge angle. The work was fed across the edge of the grinding wheel with a light inward pressure to make the cut. You will have to be precise grinding the third side to accomplish this.

Sharpening your metal lathe tools is easy to do but theres a bit of knowledge required when it comes to the correct angles. Ad Easy to Use - Laser Fits in Spindle 4-Axis 00002 resolutn Fast Setup. Cool the bit before you move to the next face and be careful not to over-grind any one face.