The information in the crushing disc needs to be much softer in comparison to the workpiece material, in order that the crushing powder could be a part of the top of the mincing disc. Milling discs are created from pig iron, gentle copper, red copper, brass, direct and hardwood.quick change disc， Direct and solid wood are merely useful for finishing once the workpiece is soil to closing dimensions.

The hardest abrasive is precious stone natural powder use diamond natural powder to grind hard computer hardware. Nevertheless, diamond natural powder is incredibly costly, therefore it is rarely used. Another most challenging is emery. Combined with corundum natural powder, silicon carbide and metal natural powder. The most popular is emery.

Employing various rough discs calls for several types of lubricants. Pig iron grinding discs demand the application of kerosene or gas being a lubricant. Minor Stainlesss steel Discs - Use oils. Copper Milling Discs - Use generator essential oil, alcoholic drinks, carbonated normal water.

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