Selection of superhard abrasives
Mar 30, 2022
(1) Selection of abrasives
1. Synthetic diamond is suitable for grinding various brittle materials. Such as: grinding carbide tools, honing alloy cast iron cylinder liners, cutting and grinding, polishing various ferrites, magnetic steels, etc.; blanking of optical glass, cutting and milling, nesting, fine grinding, edging; Metal processing gemstones, glass, high-alumina ceramics, wood and so on.
2. Cubic boron nitride: suitable for grinding hard and ductile materials such as: ferrous metals, high alumina steel, stainless steel, tool steel, bearing steel, die steel, high steel, high steel, hardened steel, etc.
(2) Selection of particle size
In the selection of particle size, factors such as workpiece roughness, grinding efficiency, and abrasive consumption should be considered. On the premise of ensuring workpiece roughness, coarser particle size should be selected to increase grinding efficiency.
General choice of particle size:
Coarse grinding: 40/50—120/140
Semi-fine grinding: 120/140—200/230
Fine grinding: 200/230—325/400
Super fine grinding: W40—W28—W209
Grinding and polishing: 36—54—0—0.5c percent
