The turning tool is one of the most widely used tools in cutting. The working part of the turning tool is the part that produces and treats the chips, including the blade, the structure that makes the chips break or roll up, the chip discharge or chip storage space, the channel of cutting fluid, and other structural elements. In the process of using, there will be some problems with the cutting edge.
Frontier issues and countermeasures:
1. Edging-measures: increase feed volume; reduce cutting speed; use more durable blades; use coated blades.
2. Crushing-measures: use tougher materials; sharp blades with sharp edges; check the rigidity of the processing system; increase the entering angle.
3. Thermal deformation-measures: reduce cutting speed; reduce feed; reduce cutting depth; use more heat and hard materials.
4. Cutting depth damage-measures: change the entering angle; strengthen the blade; replace the blade material.
5. Thermal cracking-measures: use coolant correctly; reduce cutting speed; reduce feed; use coated blades.
6. Chip accumulation-measures: increase cutting speed; increase feed; use coated blades or cermet blades; use coolant; make the edges sharper.
7. Crescent recess grinding-measures: reduce cutting speed; reduce feed; use coated blades or cermet blades; use coolant.
8. Fracture measures: use more tough materials or grooves; reduce feed; reduce cutting depth; check the rigidity of the processing system.
PS: Generally, when the flank wear reaches 0.7 mm, the blade should be replaced; the maximum wear during finishing is 0.04 mm.