The optimal design of micro-punching die by using abductive and SA methods

• Autorzy: Lin J.-Ch. , Lee K.-S. , Lin W.-S.
• Języki publikacji: EN

Abstrakty

EN

Purpose: Punching process currently plays an important role in industrial mass production. The current study focuses on increasing accuracy, performance and extending service life of punches and dies. Optimizing the design of the punch and die has been a common topic for scholars. Design/methodology/approach: The input parameters (punching times, clearance) and output results (wear) were used to construct a training database. The abductive network formulation established a relationship between input parameters and output results. By using the abductive modeling technique, the complicated and uncertain relationships between the input and output variables can be formulated into a useful mathematical model. Once the abductive network model was constructed, the relationships between input and output parameters variables became available. A simulated annealing algorithm (SA) with a performance index was established to optimize this process and find the best result as compared with the actual experiment values. Findings: This study aims to establish the relationship between punching times, clearance and wear of micro punches using the abductive network, and to find relational model involving input parameters and output result of punching die in composite blanking processes. This model can be used to estimate wear between punch and die for industrial applications. Research limitations/implications: Setting up the relational expression of punching times, clearance and wear requires a well-established database covering sufficient relevant parameters and data. In training the database, it is helpful to establish a good relational model among punching parameters. Incorrect data will cause abnormal wear. As a result, the mathematics model is difficult to converge and the neural network will inaccurately predict wear. In addition, the punching die may be changed prematurely, which increases production costs. Delay in replacing a worn punching die can result in poor quality of products. Originality/value: As electronic production becomes increasingly smaller, the opportunity to use micro punches and dies will expand accordingly. This study established the relational expression of input and output, which can be used to correctly estimate any wear condition. This result is based on an abductive network and SA method.

Słowa kluczowe

EN

optimal design; composite; experimental design; abductive network; SA method

PL

konstrukcja optymalna; kompozyty; konstrukcja eksperymentalna; metoda symulowanego wyżarzania

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Computational Materials Science and Surface Engineering
• Rocznik: 2009
• Tom: Vol. 1, nr 2
• Strony: 92--99
• Opis fizyczny: Bibliogr. 13 poz., tab., rys., wykr.

Twórcy

autor

Lin J.-Ch.

autor

Lee K.-S.

autor

Lin W.-S.

• Department of Mechanical Design Engineering, National Formosa University, 64 Wunhua Road, Huwei, Yunlin, Taiwan,

Bibliografia

• [1] T.F. Conry, E.I. Odell, W.J. Davis, Optimization of die profile for deep drawing, Journal of Mechanical Design 102 (1980) 452-459.
• [2] S.Y. Luo, Effect of the geometry and the surface treatment of punching tools on the tool life and wear conditions in the piercing of thick steel plate, Journal of Materials Processing Technology 88 (1999) 122-133.
• [3] G. Fang, P. Zeng, L. Lou, Finite element simulation of the effect of clearance on theforming quality in the blanking process, Journal of Materials Processing Technology 122 (2002) 249-254.
• [4] Y.M. Hung, J.W. Chen, Influence of the tool clearance in the cylindrical cup-drawing process, Journal of Materials Processing Technology 57 (1996) 4-13.
• [5] D.H. Park, S.S. King, S.B. Park, A Study on the improvement of formability for elliptical deep drawing processing, Journal of Materials Processing Technology 113 (2001) 662-665.
• [6] Z. Tekiner, M. Nalbant, H. Gurun, An experimental study for the effect of different clearances on burr, smooth-sheared and blanking force on aluminium sheet metal, Materials and Design 27 (2006) 1134-1138.
• [7] F. Lieu, R. Sowerby, The determination of blank shape when deep drawing prismatic cups, Journal of Materials Processing Technology 9/3 (1991) 153-159.
• [8] C.C. Tai, J.C. Lin, The Optimization deep clearance design for deep-draw dies, International Journal of Advanced Manufacturing Technology 14 (1998) 390-398.
• [9] B.Y. Joo, S.H. Rhim, S.I. Oh, Micro-hole fabrication by mechanical punching process, Journal of Materials Processing Technology 170 (2005) 593-601.
• [10] J.H. Li, H. Du, Y.S. Niu, X.L. Fu, Research of the plastic status parameter and instantaneous clearance of a punching without burr, Journal of Materials Processing Technology 129/3 (2002) 305-309.
• [11] C.F. Cheung, W.B. Lee, W.M. Chiu, An investigation of tool wear in dambar cutting of integrated circuit packages, Wear 237 (2000) 274-282.
• [12] A.G. Ivakhnenko, Polynomial theory of complex system, IEEE Transaction on Systems, Man, and Cybernetics 1/4 (1971) 364-378.
• [13] A. Metropolis, M. Rosenbluth, A. Rosenbluth, A. Teller, E. Teller, Equation of state calculation by fast computing machines, Journal of Chemical Physics 21 (1953) 1087-1092.