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A method for preparing an ordered microgroove structure multilayer superabrasive electroplated grinding wheel

A technology of superabrasives and grinding wheels, which is applied in the direction of bonded grinding wheels, abrasives, grinding/polishing equipment, etc. It can solve the problems of increased fluctuations in the contact area between the grinding wheel and the workpiece, the decline in the surface quality of the vibrating workpiece, and the difficulty in controlling the shape of the abrasive group. , to achieve high structure and size consistency, improve processing quality, and improve the effect of chip holding

Active Publication Date: 2019-03-19
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method uses a double-layer composite mask as the electroplating mask, and the shape of the abrasive group formed by electroplating is difficult to control, resulting in the shape of the abrasive group formed by composite electroplating as a stepped shape with a narrow top and a wide bottom, which increases the interval between abrasive groups. , the fluctuation of the contact area between the grinding wheel and the workpiece increases, and there may be a large vibration during the grinding process, resulting in a decrease in the surface quality of the workpiece

Method used

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  • A method for preparing an ordered microgroove structure multilayer superabrasive electroplated grinding wheel
  • A method for preparing an ordered microgroove structure multilayer superabrasive electroplated grinding wheel
  • A method for preparing an ordered microgroove structure multilayer superabrasive electroplated grinding wheel

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Embodiment Construction

[0028] The specific embodiments of the invention will be further described below in conjunction with the accompanying drawings.

[0029] see Figure 1 to Figure 6 , a multilayer superabrasive electroplated grinding wheel with an ordered microgroove structure, its structural feature is that a large number of electroplated superabrasive layers 8 containing multilayer superabrasives 3 are arranged on the outer circumference of the grinding wheel hub 1, Slanted microgrooves 12 are arranged between adjacent abrasive layers 8; the width of the microgrooves 12 is only 50 μm, the depth is 500 μm, the aspect ratio reaches 10, and the axial length is equal to the thickness of the grinding wheel; the microgrooves 12 are arrayed on the grinding wheel. They are arranged in an orderly manner at equal intervals on the working surface of the outer circumference, with a pitch of 700 μm. The ordered micro-groove structure greatly increases the chip-holding space of the grinding wheel, improves t...

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Abstract

The invention discloses a method for preparing an ordered micro-groove structure multilayer superhard abrasive electroplating grinding wheel. The preparation method is as follows: firstly, polyvinyl alcohol glue is coated on the outer circumference of the grinding wheel hub and dried to form a polyvinyl alcohol adhesive layer, and an ordered micro-groove array is processed on the adhesive layer by micro-water jet laser processing technology, and then injected into the micro-groove Inject molten polyethylene and cool it into a polyethylene insulating sheet, completely dissolve the polyvinyl alcohol adhesive layer in boiling water and leave an array of polyethylene insulating sheets, then electroplate multiple layers of superabrasives on the hub of the grinding wheel, and finally put the grinding wheel into the heating furnace The polyethylene insulating sheet is melted off to form a multi-layer superhard abrasive electroplating grinding wheel with an ordered micro-groove structure. The micro-groove processing technology of the present invention prevents heat-affected zones from appearing on the working surface of the grinding wheel hub, and after electroplating multi-layer abrasives, a large number of micro-grooves with large aspect ratios can be maintained between the abrasive layers arranged in an orderly manner. The structure and size are consistent, which greatly improves the chip removal and cooling performance of the grinding wheel, and prolongs the life of the grinding wheel.

Description

technical field [0001] The invention relates to a preparation method of a grinding wheel, in particular to a preparation method of an ordered micro-groove structure multilayer superhard abrasive electroplated grinding wheel. Background technique [0002] As one of the most widely used processing technologies in the field of mechanical manufacturing today, grinding has important applications in precision and ultra-precision machining. The traditional single-layer abrasive electroplated grinding wheel cannot be trimmed. It is necessary to increase the thickness of the coating to increase the holding force of the coated metal to the abrasive, which will reduce the height of the abrasive blade and the chip space, and easily block the grinding wheel. The heat dissipation effect is poor, which intensifies the grinding The generation and accumulation of cutting heat and the close contact between the grinding wheel and the workpiece make it difficult for the grinding fluid to enter ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24D18/00B24D5/06
CPCB24D5/06B24D18/009
Inventor 毛聪蔡培浩蒋艺峰钟宇杰彭潇潇张明军仝永刚
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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