Grinding Features

Grinding is a method of cutting a workpiece with a grinding wheel as a cutting tool on a grinding machine. The features of this method are:

(1) Since the abrasive grains of the grinding wheel have high hardness and heat resistance, grinding can process materials with high hardness, such as hardened steel and cemented carbide.

(2) The characteristics of the grinding wheel and the grinding machine determine that the grinding process system can perform uniform micro-cutting, generally ap=0.001～0.005mm; the grinding speed is very high, generally up to v=30～50m/s; the grinding machine has good rigidity; using hydraulic transmission, so grinding can economically obtain high machining accuracy (IT6 ~ IT5) and small surface roughness (Ra = 0.8 ~ 0.2μm). Grinding is one of the main methods of finishing parts.

TransGrindTools manufacture wide range kinds of diamond grinding tools which can make your grinding work easier and more effective.

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(3) The temperature of the grinding zone is very high due to severe friction. This will cause stress and deformation of the workpiece, and even cause burns on the surface of the workpiece. Therefore, a large amount of coolant must be injected during grinding to reduce the grinding temperature. Coolant also acts as chip evacuation and lubrication.

(4) The radial force during grinding is very large. This will cause elastic concessions of the machine-wheel-workpiece system, making the actual depth of cut less than the nominal depth of cut. Therefore, when the grinding is about to be completed, the smooth grinding should be carried out without feeding the tool to eliminate errors.

​​(5) After the abrasive grains are blunt, the grinding force also increases, causing the abrasive grains to break or fall off, re-exposing the sharp edge. This characteristic is called "self-sharpening". Self-sharpening enables normal grinding within a certain period of time, but after a certain working time, manual dressing should be carried out to avoid vibration, noise and damage to the surface quality of the workpiece caused by the increased grinding force.

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