Cutting of Ceramic Plates by Means of Spherical Surfaces

陶瓷板的球面切割

• 批准号: 05650127
• 负责人: HASHIMOTO Atsushi
• 金额: $ 1.28万
• 依托单位: Nihon University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05650127/
• 关键词: Ceramics; Cutting; Fracture; Crack Propagation

Concerning the development of a method for simultaneously cutting a large number of desired small shapes from ceramic plates, the following research results were obtained.The method presented is based on the use of two spherical surfaces, one being convex, the other being concave, and both being of the same radius of curvature. A ceramic plate (on which a line has been notched to define the shape of the desired cut) is interposed between the two spherical surfaces. If a compressive load is applied to the ceramic plate by way of the spherical surfaces, the ceramic plate becomes deformed along the point of contact of the spherical surfaces. Therefore, the bending moment will depend on the proportions relative to the spherical curvature, and furthermore, it will also depend on the presence of cracks in the ceramic plate along the notched line, and the extending of the crack along the entire length of the notch line to produce a line fracture in the ceramic plate. This method is an application which takes advantage of the progress of natural cracks occurring at the bending fractures of ceramic plates. In order to use this method, the proper curvature must be determined in advance and implemented in the spherical surfaces. With such a curvature having been implemented, a crack leading to a line francture can be produced in a single stroke of plate compression, and we can thereby simultaneously cut desired shapes from the ceramic plate. The significant characteristics of this method are that the cutting is done without generating noise or dust, the amount of energy required is very small, and the cutting time is very short. Therefore, it may be concluded that the cutting process presented here will be contributory to the improvement of productivity in the ceramics machining industry.

关于开发一种从陶瓷板上切割大量所需的小形状的方法，获得了以下研究结果。提出的方法是基于使用两个球形表面的使用，一个是凸面，另一个是凹形的，两者都是相同的曲率半径。在两个球形表面之间插入了一个陶瓷板（已在其上切断线以定义所需切割的形状）。如果通过球形表面施加压缩载荷在陶瓷板上，则陶瓷板沿球形表面的接触点变形。因此，弯矩将取决于相对于球形曲率的比例，此外，它也将取决于沿缺口线沿陶瓷板中的裂纹的存在，以及沿Notch线的整个长度延伸的裂纹以在陶瓷板中产生线骨架。该方法是一种利用陶瓷板弯曲裂缝发生的自然裂纹进展的应用。为了使用此方法，必须在球形表面中预先确定并实现适当的曲率。通过实现了这样的曲率，可以在单个板压缩的单程中产生导致线条的裂纹，因此我们可以同时从陶瓷板上切出所需的形状。该方法的重要特征是切割是在没有产生噪音或灰尘的情况下进行的，所需的能量量很小，切割时间非常短。因此，可以得出结论，此处介绍的切割过程将有助于提高陶瓷加工行业的生产率。

项目成果

Atsushi Hashimoto: "Circle Cutting of Plate Glass by Use of Spherical Surface" Journal of the Japan Society for Precision Engineering. Vol.60, No.11. 1601-1605 (1994)

Atsushi Hashimoto：“利用球面对平板玻璃进行圆形切割”日本精密工程学会期刊。

橋本純: "球面座による板ガラスの円板切り" 精密工学会誌. 60. 1601-1605 (1994)

Jun Hashimoto：“使用球形座对平板玻璃进行圆盘切割”日本精密工程学会杂志 60. 1601-1605 (1994)。

橋本 純: "球面座による板ガラスの円板切り" 精密工学会誌. 60. 1601-1605 (1994)

Jun Hashimoto：“使用球形座对平板玻璃进行圆盘切割”日本精密工程学会杂志 60. 1601-1605 (1994)。