Effect of tool geometry variations on the punch force in micro deep drawing of rectangular components

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• 作者：Gerrit Behrens ; Maximilian Ruhe ; Hendrik Tetzel ; Frank Vollertsen
• 关键词：Micro forming ; Micro deep drawing ; Punch force ; Tool geometry
• 刊名：Production Engineering
• 出版年：2015
• 出版时间：April 2015
• 年：2015
• 卷：9
• 期：2
• 页码：195-201
• 全文大小：1,239 KB
• 参考文献：1. Hesselbach, J, Raatz, A, Wrege, J, Herrmann, H, Weule, H, Buchholz, C, Tritschler, H, Knoll, M, Elsner, J, Klocke, F, Weck, M, Bodenhausen, J, Klitzing, A (2003) mikroPro—Untersuchungen zum internationalen Stand der Mikroproduktionstechnik. wt Werkstattstechnik online 93: pp. 119-128
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  9. Behrens G, Vollertsen F (2013) Influence of tool geometry variation on the punch force in micro deep drawing. In: Alves de Sousa R, Valente R (eds) Proceedings of the ESAFORM 2013 ‘Key Engineering Materials- vol 554-57. Trans Tech Publications, Schweiz, pp 1306-311
  10. Behrens G, Trier FO, Vollertsen F (2014) Influence of tool geometry variations on the limiting drawing ratio in micro deep drawing. Int J Mater Form (in print)
  11. Brinksmeier E, Vollertsen F, Riemer O, Flosky H, Behrens G, B?hmermann F (2013) Mikrofr?sbearbeitung zur Herstellung leistungsf?higer Mikroumformwerkzeuge. In: Tutsch R (ed) Proceedings of the 6th colloquium of micro production, Braunschweig, ISBN:978-3-8440-2243-8, (2013), pp A23-1–A23-8
  12. Hu Z, Vollertsen F (2011) Investigation on the optimisation of the blank shape for micro deep drawing of rectangular parts. In: Hirt G, Tekkaya AE (eds) Proceedings of the ICTP 2011, Stahleisen GmbH, Düsseldorf, pp 974-78
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• 刊物类别：Engineering
• 刊物主题：Industrial and Production Engineering
  Production and Logistics
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1863-7353

文摘

In this study, the impact of tool geometry variations on the punch force in micro deep drawing of rectangular parts was investigated. In contrast to deep drawing of rotationally symmetrical components in deep drawing of rectangular parts further tool geometry parameters, such as the corner radii of the die and punch influence the process and the process result. However, their impact on a micro deep drawing process is not known. Experimental micro deep drawing tests, as well as FEM simulations were carried out to determine the punch forces for a variation of the corner radius and the die radius. It could be demonstrated that an increasing corner radius size leads to an increasing punch force in deep drawing. Enlarging the corner radius from 147 to 250?μm resulted in a 36?% higher punch force. In contrast, an increase of the die radius size results in a decreasing punch force. Here, enlarging the die radius from 76 to 143?μm led to a decrease of the punch force of 26?%.