Die Design of Flexible Multi-Point Forming Process
Multi-point forming (MPF) is an advanced flexible manufacture technology, and the technology results from the idea that the whole die is separated into small punches that can be adjusted height. This idea is applied to the traditional rigid blank-holder, so flexible blank-holder (FBH) idea can be obtained. In this work, the performance of a multi-point die is investigated with pins in square matrix and suitable blank holder. Each pin in the punch holder can be a significant moved according to the die high and at different load that applied with spring with respect to spring stiffness. The results shows the reduction in setting time with respect to traditional single point incremental forming process that lead to (90%). and also show during the forming process, the deformation of the interpolator can induce a shape error in the formed work-piece and the blank holder can reduce/eliminate dimples that sometimes arise in the work-piece. The minimum force applied using multi-point die is 28.556KN, while the load when complete the forming process is 30.8KN that caused displacement of die to 32.8mm.
B. Lu, H. Zhang, D.K. Xu and J. Chen, A Hybrid Flexible Sheet Forming Approach Towards Uniform Thickness Distribution, International Conference on Manufacture of Lightweight Components – ManuLight2014.
Viorel Paunoiu and Virgil Teodor, Geometric reconfiguration of the multipoint forming dies using reverse engineering, the annals of “DUNĂREA DE JOS” university of Galati fascicle, technologies in machine building ISSN 1221- 4566, 2009.
A A Tolipov, A Elghawail, M Abosaf, S Shushing, D Pham and K Essa, Experimental research and numerical optimisation of multi-point sheet metal forming implementation using a solid elastic cushion system, School of Engineering, University of Birmingham, Conference Paper • July 2017
Mingzhe Li, Yuhong Liu, Shizong Su, Guandgquan Li, Multi-point forming: a flexible manufacturing method for a 3-d surface sheet, Jilin University of Technology, Changchun 130025, People’s Republic of China.1997
D.T. Pham, S.Z. Su1, M.Z. Li , C.G. Liu , F. Carrai, F. Massabe , A.M.Yan and M. Vinay, FLXIBLE TOOLING FOR MANUFACTURING 3D PANELS USING MULTI-POINT FORMING METHODLOGY, Manufacturing Engineering Centre, Cardiff University, Cardiff, United Kingdom, Conference Paper June 2008
Hani Aziz Ameen, Haidar Akram Alsabti and Zahraa Abdul Kareem Radhi, Finite Element Analysis of the Dish Multi-Point Forming Process , International Journal of Engineering Research & Technology (IJERT), Vol. 5 Issue 07, July-2016.
Mohamed Abosaf, Khamis Essa, Ali Alghawail, Abror Tolipov, Shizhong Su and Duc Pham, Optimisation of multi-point forming process parameters, Int J Adv Manuf Technol, 2017.
Heli Peng, Mingzhe Li, Chunguo Liu and Junhui Cao, Study of multi-point forming for polycarbonate sheet, Int J Adv Manuf Technol, 67:2811–2817, 2013.
Se Yun Hwang, Jang Hyun Lee, Yong Sik Yang and Mi Ji Yoo, Springback adjustment for multi-point forming of thick plates in shipbuilding, Elsevier journal, Computer-Aided Design 42, 1001-1012, 2010.
Q. Mohamed Doss, Tahseen Fadhel Abaas and Aqeel Sabree Bedan, The effect of tool path strategy on twist behavior in Single Point Incremental Sheet Metal Forming, Journal of Engineering, Baghdad University, Vol. 4, 2013.
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