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Scribing wheel

A technology for scoring wheels and knife tips, which is applied to glass manufacturing equipment, stone processing tools, glass cutting devices, etc., to achieve the effects of prolonging life, suppressing wear and tear, and long life

Inactive Publication Date: 2020-12-29
MITSUBOSHI DIAMOND IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it does not mean that there will be no chipping at the tip of the blade, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0088] figure 1 The illustrated scoring wheel 10 is used for scoring machining of workpieces. The workpiece is, for example, a substrate. The substrate is, for example, a brittle material substrate. The brittle material substrate is, for example, a glass substrate or a ceramic substrate. The scoring wheel 10 includes a main body 20 and a blade edge portion 30 . In the scoring wheel 10, at least the cutting edge portion 30 is formed of a high-hardness material. The high hardness material is, for example, diamond sintered compact, single crystal diamond or polycrystalline diamond. The basic structure of the scoring wheel 10 is classified into a first structure and a second structure, for example. In the first configuration, the scoring wheel 10 is entirely formed of a high hardness material. In the second configuration, the scoring wheel 10 includes a non-high hardness portion formed of a non-high hardness material, and a high hardness portion formed of a high hardness mat...

no. 2 approach

[0137] Figure 9 A scoring wheel 100 of a second embodiment is shown. The structure of the scoring wheel 100 of the second embodiment corresponds to a partially modified structure of the scoring wheel 10 of the first embodiment. The rounding process is not performed on the front end portion 110 of the scoring wheel 100 of the second embodiment. In other points, the scoring wheel 10 of the first embodiment and the scoring wheel 100 of the second embodiment have the same structure. In each of the scoring wheels 10 , 100 , the same reference numerals are assigned to common structures.

[0138] The tip portion 110 of the scoring wheel 100 is sharper than the tip portion 40 of the first embodiment. The front end surface 111 of the front end portion 110 is smooth. The scoring wheel 100 is equipped with the contact suppression structure 50 similarly to the scoring wheel 10 of 1st Embodiment. Each cutting edge surface 31A, 31B is divided into main surface 31C and front end surfac...

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Abstract

The invention provides a scribing wheel which is longer in service life and not easy to reduce the quality of a processed object. The scribing wheel (10) includes a blade tip portion (30) made of diamond. The tip portion (30) includes a tip portion (40) subjected to rounding, and a contact suppression structure (50) configured to form a space with the workpiece in a state of being pressed againstthe workpiece.

Description

technical field [0001] The present invention relates to a scribing wheel used for scribing processing of workpieces. Background technique [0002] Scribing wheels are used for scribing processing of workpieces such as brittle material substrates. The raw material of the scoring wheel is, for example, cemented carbide or diamond. The type of the scoring wheel is selected according to the type of workpiece and the like. Diamond scoring wheels are more durable than cemented carbide scoring wheels. However, it does not mean that chipping or the like of the blade tip does not occur. Patent Document 1 discloses a technique of rounding the tip of the blade tip to increase the life of a single crystal diamond scoring wheel. [0003] prior art literature [0004] patent documents [0005] Patent Document 1: Japanese Patent Laid-Open No. 2018-52129 Contents of the invention [0006] The problem to be solved by the invention [0007] The quality of the workpiece broken in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B33/10
CPCC03B33/105C03B33/107B28D1/225
Inventor 留井直子村上健二
Owner MITSUBOSHI DIAMOND IND CO LTD
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