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Scribing wheel for forming a hole and method for forming the hole

A scoring wheel, hollow technology, used in glass manufacturing equipment, metal processing, fine working devices, etc., can solve the problems of small inclination angle and insufficient crack depth.

Inactive Publication Date: 2015-06-24
MITSUBOSHI DIAMOND IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the case of using the scoring wheel 90 disclosed in the above-mentioned Patent Document 2, there are cases where the inclination angle of the crack is small and the depth of the

Method used

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  • Scribing wheel for forming a hole and method for forming the hole
  • Scribing wheel for forming a hole and method for forming the hole
  • Scribing wheel for forming a hole and method for forming the hole

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Embodiment Construction

[0070] In order to further explain the technical means and effects that the present invention adopts to achieve the intended purpose of the invention, below in conjunction with the accompanying drawings and preferred embodiments, a description of a scoring wheel for forming a hollow hole and a method for forming a hollow hole according to the present invention will be described. Specific embodiments, structures, features and effects thereof are described in detail below.

[0071] Hereinafter, the hollow hole forming scribing wheel and the scribing device used in each embodiment of the present invention will be described in detail with reference to the drawings. However, each of the embodiments shown below is an example for embodying the technical idea of ​​the present invention, and it is not intended that the present invention be limited to these embodiments. The present invention is equally applicable to other embodiments included in the scope of the patent application.

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Abstract

The invention provides a scribing wheel for forming a hole and a method for forming the hole. The scribing wheel requires low externa force while forming the hole and may form the hole in a beautiful state in which tiny concave-convex parts or shell-shaped gaps are not generated on an inner periphery, and has low horizontal cracks. After a scribing line in an enclosed curve shape is formed by using the scribing wheel for forming the hole, the hole is formed in virtue of cutting through. The scribing wheel for forming the hole is provided with multiple trenches arranged at given intervals along the blade front end chine line of the disc-shaped scribing wheel. The bottoms of the trenches are arranged in the surface of the blade front end chine line and extend in the direction with a given angle [theta]1 relative to the blade front end chine line.

Description

technical field [0001] The present invention relates to a scoring wheel for forming hollow holes in various closed curved shapes such as circular and elliptical shapes on brittle material substrates and a hollow hole forming method using the scoring wheel. Background technique [0002] In the case of forming, for example, a circular hollow hole on a brittle material substrate, even if the scribe line is formed circularly using a scribe wheel that forms cracks in a direction perpendicular to the surface of the brittle material substrate, it is difficult to make the scribed line in this state. The area enclosed by the dashed line is taken out. In such a case, there are known methods of blowing a coolant to the area surrounded by the scribed line to cool it to shrink it, and heating the area surrounded by the scribed line to make it shrink. Expanding and extending the crack removes the area enclosed by the score line. [0003] However, in this conventional method, the redunda...

Claims

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Application Information

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IPC IPC(8): C03B33/10
CPCB26D3/085B28D5/00C03B33/033C03B33/04C03B33/10Y02P40/57
Inventor 浅井义之宫川清文中垣智贵吉泽庆小笠原规幸
Owner MITSUBOSHI DIAMOND IND CO LTD