Ultrasonic laser composite dressing method for grinding wheel

Abstract

The invention belongs to composite dressing method types of grinding wheels and particularly relates to an ultrasonic laser composite dressing method for a grinding wheel. The ultrasonic laser composite dressing method is characterized in that a laser transmitter transmits energy to a focusing head with a focusing head fixing device through optical fibers, laser beams are focused to heat the rotating grinding wheel in front of a dressing point at proper energy density for proper heating time, an ultrasonic generator transmits an ultrasonic frequency signal to an ultrasonic transducer, the ultrasonic frequency signal is converted into mechanical vibration through the transducer to be transmitted to an amplitude-change pole, waves, generating longitudinal vibration, of the amplitude-change pole will be decomposed at the position, where a chute is formed, of the small end, the vibration type involves longitudinal vibration and bending vibration, and composite elliptical ultrasonic vibration is formed at the point of a diamond dressing stylus for dressing. The auxiliary heating effect of lasers is recombined during ultrasonic vibration dressing, removal of partial materials of the grinding wheel is changed from brittle removal into plastic removal, cutting force is reduced, abrasion to the dressing stylus is reduced, and dressing efficiency and dressing precision are improved.

Description

technical field

[0001] The invention belongs to the technical field of grinding wheel compound dressing, and in particular relates to an ultrasonic laser compound dressing method, which is suitable for the precise and efficient dressing of dense superhard abrasive grinding wheels, especially the precise and efficient dressing of diamond grinding wheels and CBN grinding wheels. Background technique

[0002] At present, with the development of science and technology and industry, difficult-to-machine materials with excellent properties have been widely used in aviation, aerospace, navigation, petroleum, chemical, automotive and other industrial sectors. Efficient and precise machining of these difficult-to-machine materials has become one of the current research hotspots. Due to the difficult machining characteristics of superhard materials and the improvement of processing accuracy requirements, the demand for grinding, especially the efficient and precise grinding of these m...

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