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Longitudinal grinding and deep grinding

1. Longitudinal grinding method

Longitudinal grinding method is a common grinding method. During grinding, the worktable is fed longitudinally and repeatedly, the grinding wheel acts as periodic transverse feed, and the grinding allowance of the workpiece is ground off in multiple reciprocating strokes.

Characteristics of longitudinal grinding method (longitudinal method for short).

① In the whole width of the grinding wheel, the working conditions of the abrasive grains are different. The sharp corner on the left end of the grinding wheel bears the main cutting effect. The grinding allowance of the workpiece is cut off by the abrasive grains at the corner of the grinding wheel, and most of the abrasive grains on the width of the grinding wheel bear the role of reducing the surface roughness of the workpiece. The longitudinal grinding method has good grinding force and heat dissipation conditions, and can obtain higher machining accuracy and smaller surface roughness.

② Labor produces low efficiency.

③ Small grinding force, suitable for grinding slender, precision or thin-walled workpieces

2. Deep grinding method

This is a widely used grinding method, which uses a large back draft to grind all the grinding allowance of the workpiece in one longitudinal feed. Because the basic grinding time is shortened, the labor productivity is high.

Characteristics of deep grinding method:

① It is suitable for grinding workpieces with good rigidity

② The grinder shall have high power and stiffness.

③ Small single direction longitudinal feed shall be adopted during grinding. The longitudinal feed direction of the grinding wheel shall face the head frame and lock the tailstock sleeve to prevent the workpiece from falling off. The grinding wheel shall have moderate hardness and good grinding performance.

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