(A) The choice of abrasive

1, synthetic diamond, suitable for grinding of various brittle materials. Such as: grinding carbide cutting tools, honing alloy cast iron cylinder liner, cutting grinding, polishing a variety of ferrite, magnetic steel, etc.; optical glass cutting, cutting milling, nesting, grinding, edging; Metal processing gems, glass, high aluminum ceramics, wood and so on.

2. Cubic Boron Nitride : Suitable for grinding of hard materials such as ferrous metals, high niobium steel, stainless steel, tool steel, bearing steel, die steel, high niobium steel, high niobium iron, hardened steel, etc.

(b) Selection of granularity

In order to increase the grinding efficiency, the coarser particle size should be selected as much as possible under the premise of ensuring the roughness of the workpiece in terms of roughness, grinding efficiency, and abrasive consumption.

The general choice of granularity:

Coarse grinding: 40/50-120/140

Semi-finishing grinding: 120/140—200/230

Grinding: 200/230-325/400

Super fine grinding: W40-W28-W209

Grinding and polishing: 36—54—0—0.5c%