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Abrasive grinding method

Finishing (such as cutting) of the machined surface by the relative movement of the lap and the workpiece under a certain pressure by the abrasive particles coated or pressed onto the lap. Grinding can be used to process a variety of metal and non-metallic materials, the surface shape of the processing is flat, inner and outer cylindrical and conical surfaces, convex, concave spherical, thread, tooth surface and other profiles. Processing accuracy can reach IT5~01.

The grinding method can be generally classified into three types: wet research, dry research and semi-dry research.

1 Wet grinding: Also known as sand grinding, the liquid abrasive is continuously filled or coated on the grinding surface, and the abrasive continuously slides and rolls between the workpiece and the lap to form a cutting motion. Wet grinding is generally used for coarse grinding, and the fine powder abrasive used has a particle size coarser than W7.

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2 dry research: also known as sand embedding, the thin abrasive cutting disc for metal is evenly embedded in the surface layer of the lap, only a small amount of stearic acid mixed fat and other auxiliary materials must be applied on the surface of the lap. Dry grinding is often used for fine grinding, and the fine powder abrasive used is finer than W7.

3 Semi-dry research: similar to wet research, the abrasive used is a paste-like paste. Grinding can be done either manually or on a grinder. Before the workpiece is ground, it must be processed by other processing methods to obtain higher pre-machining precision. The remaining grinding allowance is generally 5 to 30 microns. )

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