Trimming method for coarse grinding grain diamond end surface grinding wheel
A technology of diamond and coarse abrasive grains, which is applied to the parts of grinding machine tools, abrasive surface adjustment devices, metal processing equipment, etc., can solve the problems of hard and brittle materials that cannot be precisely ground, poor surface abrasive grains, etc., and achieve Effects of accelerated wear, improved contour, and easy heat accumulation
Active Publication Date: 2016-09-28
DALIAN UNIV OF TECH
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Problems solved by technology
[0005] Aiming at the deficiencies of the prior art, the present invention provides a dressing method for a coarse abrasive diamond end face grinding wheel. Grinding process, it is necessary to replace the problem of fine abrasive diamond grinding wheel
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Embodiment Construction
[0019] The technical scheme of the present invention is: select W, Mo, Cr three kinds of metal elements that have catalytic effect on diamond graphitization as the raw material of the dressing tool, and prepare it by combining mechanical alloying and hot-pressing solid-phase sintering. Under a certain speed and pressure, dry grinding and dressing of the coarse abrasive diamond end face grinding wheel can quickly accumulate heat and generate high temperature in the dressing area, accelerate the wear of diamond abrasive grains, improve the contour of the abrasive grains on the surface of the grinding wheel, and achieve rapid dressing of coarse grains. The purpose of the abrasive grain diamond face grinding wheel. Specifically include the following steps:
[0020] The first step is to prepare the trimming tool
[0021] Proportion Mo, W and Cr powder according to the atomic ratio of 70:29:1, weigh 168g of tungsten powder, 69.6g of molybdenum powder, and 2.4g of chromium powder, a...
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Abstract
The invention belongs to the field of trimming of diamond grinding wheels, and provides a trimming method for a coarse grinding grain diamond end surface grinding wheel. The trimming method includes the steps that (1) a W-Mo-Cr alloy material is prepared to serve as a trimming tool; (2) the trimming tool is installed on a main shaft, the coarse grinding grain diamond end surface grinding wheel is installed on a clamp and makes contact with the trimming tool, one side of the clamp is fixedly connected with a spring loading device used for applying pressure to the coarse grinding grain diamond end surface grinding wheel, and the lower portion of the spring loading device is connected with a cross-shaped guide rail, so that installation is completed; (3) the device is adjusted; and (4) the pressure and the main shaft rotation speed are set and loaded slowly, and when the pressure and the main shaft rotation speed reach the set values, trimming of the electroplating diamond end surface grinding wheel is carried out. According to the trimming method for the coarse grinding grain diamond end surface grinding wheel, a dry-grinding trimming mode is adopted, heat is accumulated more easily, the purpose of rapidly improving the equal-height performance of surface grinding grains of the coarse grinding grain diamond end surface grinding wheel is realized, and the trimming efficiency for the diamond grinding grains is improved.
Description
technical field [0001] The invention belongs to the field of dressing of diamond grinding wheels, in particular to a dressing method of diamond end face grinding wheels with coarse abrasive grains. Background technique [0002] Hard and brittle materials such as cemented carbide, ceramics, and glass have a series of excellent properties such as high strength, high hardness, high wear resistance, corrosion resistance, and heat resistance, and are widely used in cutting-edge technologies such as machinery, electronics, communications, and optics. and in the field of defense. However, this type of material is brittle, has low fracture toughness, and is close to the elastic limit, which makes it prone to surface damage such as crushing during processing. It is usually processed by grinding. The grinding process is generally divided into coarse machining, semi-finishing and precision machining. Fine-grain diamond grinding wheels are mainly used for precision grinding of hard an...
Claims
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Login to View More IPC IPC(8): B24B53/02B24B53/12B24B53/017
CPCB24B53/017B24B53/02B24B53/12
Inventor 金洙吉王春辉史双佶安润莉
Owner DALIAN UNIV OF TECH