逢甲建築夜市: 2012

Sheet bending

■ 定義

Sheet Metal Shearing & Bending

http://www.youtube.com/watch?v=qTUMbVNf1Xc

http://www.youtube.com/watch?v=SeGQ91FKTNg&feature=relmfu

http://www.mechanicaldesignforum.com/content.php?4-The-fine-art-of-sheet-metal-bending

http://www.youtube.com/watch?v=GGCSk5HIU9A

Purpose of this paper is to offer the reader an overview of recently performed and ongoing research related to process planning for sheet metal bending, thus providing a starting point for further exploration of this field. The scope of this review paper is limited to sheet metal bending as performed on numerically controlled press brakes, with special focus on air bending. Automatic process planning requires a good understanding of the material behaviour under process conditions. Therefore, some space has been reserved for an overview of bend modelling efforts and, directly linked to this, in-process measurement and adaptive control methods. Part representation and feature classification methods for bent sheet metal parts are also discussed. Sections are dedicated to the core problems of fully automated process planning in sheet metal bending: bend sequencing, collision detection, tolerance verification and tool selection. The state of the art review is completed with an overview of ergonomic analysis methods for process plan evaluation.

http://dl.acm.org/citation.cfm?id=1108577

參考文獻
http://dl.acm.org/citation.cfm?id=1672898

■ 哲學

Bend and Twist of “Time and Space”

http://www.asjlp.net/player/57001-0-1.html

A BRIEF HISTORY OF TIME

http://www.books.com.tw/exep/prod/booksfile.php?item=0010158489

早先人們以為時空是平坦的，廣義相對論的革命性的設想，認為時間和空間中的質量和能量的分佈使時空彎曲。

吉爾·德勒茲 (FLUX)