In the cutting process of woodworking engraving machine tools, the front and back surfaces of the tool are often in contact with the swarf workpiece, resulting in severe friction, high temperature, pressure, etc., so the front and rear tool surfaces are the easiest to wear.
1. When the rake face wears and cuts plastic materials, the chips and the rake face contact each other, mainly to form crescent crater wear.
2. When the flank face wears and cuts brittle materials, the contact length between the chips and the rake face is short, and the blunt rounded edge makes the flank face wear more
3. When cutting the steel material due to boundary wear, deep grooves are often ground on the flank surface of the main cutting edge close to the workpiece skin and the secondary cutting edge close to the tool tip.
