Influence of the brittle behavior of work materials on polishing characteristics

2017 2nd International Conference on Advanced Materials Research and Manufacturing Technologies

材料科学;机械制造

Sakamoto, Satoshi^1 ; Gemma, Masaya^1 ; Hayashi, Keitoku^1 ; Kondo, Yasuo^2 ; Yamaguchi, Kenji^3 ; Yakou, Takao^1 ; Arakawa, Susumu^4

Yokohama National University, 79-2 Tokiwadai, Hodogaya-ku, Yokohama, Japan^1

Yamagata University, 4-3-16 Jonan, Yonezawa, Japan^2

Yonago National College of Technology, 4448 Hikona-cho, Yonago, Japan^3

Kurashiki Boring Kiko Co. Ltd., 2-4-20 Matsue, Kurashiki, Japan^4

关键词: Abrasive grains;    Abrasive papers;    Brittle behavior;    Electrodeposited wire;    Hard and brittle materials;    High hardness materials;    Slicing characteristics;    Slicing process;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/229/1/012031/pdf
DOI  :  10.1088/1757-899X/229/1/012031

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Diamond electrodeposited wire tools are frequently used to cut thin wafers from hard and brittle materials. However, microcracks sometimes appear during the slicing process. The appearance of microcracks adversely affects slicing efficiency and slicing accuracy. In this study, we examine the influence of brittle behavior on the polishing characteristics such as polishing depth and tool wear. This is the first step toward investigating the influence of the brittle behavior of work materials on slicing characteristics. Ceramics such as alumina, silicon carbide, and zirconia are used as work materials. Even with the same degree of hardness, we found that the polishing depth values were greater for materials exhibiting brittle behavior. In the polishing of high-hardness materials, abrasive grains were badly damaged during the initial stages of polishing. Damage to the abrasive paper was less in wet polishing as compared with dry polishing. Moreover, wet polishing had a greater polishing depth than dry polishing. The polishing characteristics of the brittle materials were similar to the grooving characteristics produced using wire tools; however, both these characteristics depend on the brittle behavior of the work materials. Therefore, by performing simple polishing tests, estimating the state of grooving or slicing using wire tools is possible.