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Ceramic cutting-milling combined-type plane processing method based on crack propagation effect

A crack propagation and composite technology, which is applied in the field of rough machining of engineering ceramics, can solve the problems of large grinding wheel wear, low processing efficiency, and unsuitable fine grinding, etc., and achieve the effect of reducing grinding wheel wear and processing cost

Active Publication Date: 2017-06-06
JIANGSU KEHUAN INNOVATIVE MATERIAL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method is not suitable for fine grinding, and there are problems such as large amount of grinding wheel wear and low processing efficiency.

Method used

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  • Ceramic cutting-milling combined-type plane processing method based on crack propagation effect
  • Ceramic cutting-milling combined-type plane processing method based on crack propagation effect

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Embodiment Construction

[0019] The technical solutions of the present invention will be further described in detail below through specific embodiments and accompanying drawings.

[0020] The present invention proposes a ceramic cutting-push-grinding compound surface processing method based on the crack propagation effect, which is improved on the basis of the cylindrical surface processing method, and is a large margin rough processing method for hard and brittle materials such as engineering ceramics , by pre-processing oblique grooves on the flat ceramic workpiece and pre-fabricating micro-crack defects, reasonably setting the oblique processing angle of the grinding pre-processing flange, taking advantage of the characteristics that the cracks of hard and brittle materials are easy to expand, in the tool Under the action of pushing, the crack expands instantaneously, and finally drives the cracks to be networked and broken, so as to realize the removal of the flange.

[0021] The described ceramic...

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Abstract

The invention provides a ceramic cutting-milling combined-type plane processing method based on a crack propagation effect and belongs to the technical field of ceramic rough processing. The method comprises the steps that firstly, parallel grooves are pre-processed in a flat plate ceramic workpiece through a grinding wheel piece; then a flange is rotated to form a certain bevel angle, and microcracks in the flange extend instantly under the pushing and feeding effects of a tool; and finally cracks are driven to be crushed in a network mode, and the flange is removed. The ceramic cutting-milling combined-type plane processing method based on the crack propagation effect has the characteristics that abrasion of a grinding wheel is reduced, processing cost is low, processing efficiency is high, and the method is easy to achieve.

Description

technical field [0001] The invention belongs to the technical field of rough machining of engineering ceramics, and in particular relates to cutting-grinding composite engineering ceramics (such as SiC, Al 2 o 3 、Si 3 N 4 , ZrO 2 , mullite, etc.) method to remove the processing plane with a large margin. Background technique [0002] In recent years, the continuous expansion of the original application fields and the massive development and application of new ceramics have made engineering ceramics play an increasingly important role in the industry. Since the shrinkage and deformation of ceramics after sintering are difficult to control and cannot be used directly, it is necessary to It must be machined to achieve dimensional accuracy. At present, 80% of engineering ceramics processing technology is ground by diamond grinding wheel. Due to the severe wear of diamond grinding wheel, the processing cost accounts for 80%-90% of the total cost of ceramic workpieces, and th...

Claims

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Application Information

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IPC IPC(8): B24B27/06
CPCB24B27/0675B24B27/0683
Inventor 田欣利姚巨坤杨绪啟王龙吴志远唐修检江宏亮
Owner JIANGSU KEHUAN INNOVATIVE MATERIAL CO LTD
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