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Laser auxiliary grinding wheel end face dry grinding method and device

A laser-assisted, dry grinding technology, applied in machine tools, laser welding equipment, grinding/polishing equipment suitable for grinding workpiece planes, etc., which can solve the problems of coolant mixed abrasive dust, environmental pollution, and impact on reuse. , to achieve the effect of improving grinding performance, simple device structure and prolonging service life

Active Publication Date: 2020-02-07
NANTONG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, there will be another problem - the collection and treatment of the coolant. The used coolant will be mixed with grinding debris and other residues, which will affect its reuse; the coolant contains harmful substances such as sodium nitrite. Improper handling will cause pollution to the environment

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  • Laser auxiliary grinding wheel end face dry grinding method and device
  • Laser auxiliary grinding wheel end face dry grinding method and device
  • Laser auxiliary grinding wheel end face dry grinding method and device

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] The invention discloses a method for dry grinding of the end face of a laser-assisted grinding wheel. The laser beam emitted continuously by a laser passes through a polarizer and enters a focusing lens. The laser beam is spirally rotated from inside to outside, and the surface of the workpiece is preheated, so that the Vickers hardness of the surface of the workpiece is reduced to a value range suitable for dry grinding. At the same time, the ring-shaped grinding wheel performs rotating and feeding motions, which can reduce burns on the surface of the workpiece and wear of the grinding wheel under the condition of no coolant.

[0023] In the present invention, the laser beam emitted continuously by the laser is CO 2 The laser power is 50-400W, the spot diameter is 2mm, the maximum turning radius of the laser beam helical turning is 35mm, the minimum turning ra...

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Abstract

The invention discloses a laser auxiliary grinding wheel end face dry grinding method and device. The main principle of the method of the laser auxiliary grinding wheel end face dry grinding method isthat a laser beam is spirally rotated on a to-be-machined surface, pre-heating is performed on a to-be-machined material, which can enable the to-be-ground material to be rapidly heated and softenedin a short time, and the surface Vickers hardness is reduced. According to the method, through performing pre-heating on the material hard to cut, the yield strength of the material can be decreased,and the abrasion for a grinding wheel in the machining process is reduced; and meanwhile, the impact between the grinding wheel and a workpiece can be reduced, the machining surface quality is improved, the service life of the grinding wheel is prolonged, surface burning is reduced, and the machining efficiency is improved.

Description

Technical field: [0001] The invention relates to a method and a device for dry grinding of a laser-assisted grinding wheel end face. Background technique: [0002] With the rapid development of aerospace, automobile manufacturing, marine industry and other fields, various industries have higher and higher demands on the material properties, processing quality and processing efficiency of product parts, such as cemented carbide and nickel-based superalloys. Although high-performance engineering materials have good mechanical properties, they are difficult-to-cut materials in the field of mechanical processing due to their poor processing properties. [0003] Most of the materials cut in conventional face grinding are high-strength and high-hardness materials, and the face grinding wheel is severely worn. In addition, during the grinding process, due to the high temperature of the grinding surface, the machined surface will be burned. Therefore, during the machining process, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B7/16B24B1/00B23K26/00
CPCB24B7/16B24B1/00B23K26/00B23K26/0093
Inventor 张华郝德胜朱伟
Owner NANTONG UNIVERSITY
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