2016年
Effect of cutter tip angle on cutting characteristics of acrylic worksheet subjected to punch/die shearing
AIMS Materials Science
- ,
- ,
- 巻
- 3
- 号
- 4
- 開始ページ
- 1728
- 終了ページ
- 1747
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.3934/matersci.2016.4.1728
- 出版者・発行元
- AIMS Press
This paper aims to describe the effect of tool geometry on cutting characteristics of a 1.0 mm thickness acrylic worksheet subjected to a punch/die shearing. A set of side-wedge punch and side-wedge die which had the edge angle of 30°, 60° and/or 90° was prepared and used for cutting off the worksheet. A load cell and a CCD camera were installed in the cutting system to investigate the cutting load resistance and the side-view deformation of the worksheet. From experimental results, it was revealed that a cracking pattern at a sheared zone was remarkably affected by the edge angle of cutting tool. A cracking direction was almost coincident to the edge angle when considering the punch/die edge angle of 30°, while any matching of them was not observed in case of the punch/die edge angle of 60°, 90°. By using the 30° side-wedge tool, a flat-smooth sheared surface was generated. When combing the punch edge angle of 90° and the die edge angle of 60°, the cracking profile was characterized by the both edge angles for each part (die and punch). Carrying out an elasto-plastic finite element method analysis of cutter indentation with a few of symmetric and asymmetric punch/die edges, the stress distribution and deformation flow at the sheared zone were discussed with the initiation of surface cracks.
- リンク情報
- ID情報
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- DOI : 10.3934/matersci.2016.4.1728
- ISSN : 2372-0468
- ISSN : 2372-0484
- SCOPUS ID : 85037113681