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Today the metal forming industry is making increasing use of simulation to evaluate the performing of dies, processes and blanks prior to building try-out tooling. Finite element analysis (FEA) is the most common method of simulating sheet metal forming operations to determine whether a proposed design will produce parts free of defects such as fracture or wrinkling.〔Taylan Altan, Erman Tekkaya, “(Sheet Metal Forming: Processes and Applications ),” Chapter 3: Process Simulation,” Manan Shah, Partchapol Sartkulvanich, August 31, 2012.〕 ==Sheet metal forming challenges== Sheet metal forming, which is often referred to as stamping, is a process in which a piece of sheet metal, referred to as the blank, is formed by stretching between a punch and a die.〔Abdulla Mohammad Gous Shaikh, Tippa Bhimasankara Rao, “(Sheet Metal Forming Simulations for Heavy Commercial Vehicle Parts by LS-DYNA ),” ''Global Journal of Researches in Engineering'', Volume 13, Issue 1 2013.〕 Deformation of the blank is typically limited by buckling, wrinkling, tearing, and other negative characteristics which makes it impossible to meet quality requirements or makes it necessary to run at a slower than desirable rate.〔Abdulla Mohammad Gous Shaikh, Tippa Bhimasankara Rao, “(Sheet Metal Forming Simulations for Heavy Commercial Vehicle Parts by LS-DYNA ),” ''Global Journal of Researches in Engineering'', Volume 13, Issue 1 2013.〕 Springback is a particularly critical aspect of sheet metal forming. Even relatively small amounts of springback in structures that are formed to a significant depth may cause the blank to distort to the point that tolerances cannot be held. New materials such as high strength steel, aluminum and magnesium are particularly prone to springback.〔Winfried Schmitt, Oleg Benevolenski, Tom Walde, Andriy Krasowsky, “(Material Characterization for Simulation of Sheet Metal Forming ),” VIII International Conference on Computational Plasticity (COMPLAS VIII), Barcelona, 2005.〕 Sheet metal forming is more of an art than a science. The design of the tooling, stamping process and blank materials and geometry are primarily done by trial and error.〔Igor A. Brigadnov, “(Computer Simulation of Sandwich Sheet Metal Forming ),” ''Journal of Advanced Computer Science and Technology'', Volume 1, Issue 4, Pages 306-315, 2004.〕 The traditional approach to designing the punch and die to produce parts successfully is to build try-out tools to check the ability of a certain tool design to produce parts of the required quality. Try-out tools are typically made of less expensive materials to reduce try-out costs yet this method is still costly and time-consuming.〔A. Anderssson, “(Comparison of sheet-metal-forming simulation and try-out tools in the design of a forming tool ),” ''Journal of Engineering Design'', Vol. 15, No. 3, 2004.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sheet metal forming simulation」の詳細全文を読む スポンサード リンク
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