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Xia Q.-X.,South China University of Technology | Wei G.-M.,South China University of Technology | Ye F.-Y.,Guangdong Kelon Mould Co. | Qiu Z.-W.,Guangdong Kelon Mould Co.
Huanan Ligong Daxue Xuebao/Journal of South China University of Technology (Natural Science) | Year: 2012

In this paper, first, a numerical model was established with UG, HyperMesh and Dynaform to simulate the strip layout of the whole 13-position progressive stamping process of automotive soleplate component parts. Next, the whole progressive stamping process was numerically simulated by using the multi-position and multi-process method, and the forward and reverse drawing of the key positions 3 and 4 among the 13 positions was analyzed in detail. Then, the finite element model was rebuilt based on the modified shapes of blank and convex hull, by which satisfied simulation results were obtained. Finally, a progressive die with 13 positions was designed and manufactured, and a set of automotive soleplate component parts with bilateral symmetry was produced. Measured results obtained by checking fixture show that the forming quality meets the service requirements well. The designed 13-position progressive die has been used in mass production.


Wei G.,South China University of Technology | Xia Q.,South China University of Technology | Zhang S.,South China University of Technology | Qiu Z.,Guangdong Kelon Mould Co. | Ye F.,Guangdong Kelon Mould Co.
2011 2nd International Conference on Mechanic Automation and Control Engineering, MACE 2011 - Proceedings | Year: 2011

The automotive installation soleplate part researched in this paper is made by the high strength steel. It has a very complex shape and is difficult to be deformed. The forming processes of the installation soleplate part include blanking, deep drawing, local forming and bending, etc. To obtain the reasonable strip layout design and the multi-position progressive die with the characteristics of high precision, high efficiency and long-life, the Progressive Die Wizard (PDW) module of UG NX was adopted, and the formability of the installation soleplate part was analyzed in detail by the one-step inverse forming analysis method. The advantages and disadvantages of the single-row and double-row layout patterns was compared and analyzed, and the double-row layout with intermediate carrier was finally designed. The results show that the high material utilization of workpiece and more uniform load of die can be obtained by the double-row layout with intermediate carrier, which is more suitable for the mass production. The progressive die with 13 positions was manufactured accordingly and used for the practical production. An annual production output of one million parts of was achieved. © 2011 IEEE.


Xia Q.-X.,South China University of Technology | Wang T.,South China University of Technology | Chen Z.-P.,Guangdong Kelon Mould Co. | Zhao X.-Z.,South China University of Technology | Qiu Z.-W.,Guangdong Kelon Mould Co.
Huanan Ligong Daxue Xuebao/Journal of South China University of Technology (Natural Science) | Year: 2014

In order to improve the forming quality of multi-position progressive stamping and reduce the cost of die manufacturing, the stamping process of the structural part used for car door rail is simulated in terms of bending-drawing, trimming, shaping and flanging as well as of springback after unloading. Then, such forming defects as carrier distortion, cracks in the process of deep drawing, flanging and springback are predicted and analyses on why those defects occur are performed. Moreover, corresponding measures for solutions to or control of such problems are raised, which aid to rebuild the finite element model, and thus ideal simulation results are made. Finally, a progressive stamping trial is carried out according to the simulation results, and a set of qualified left-right car door rails is successfully produced by means of double-die symmetrical pressing method. In addition, the manufactured progressive die is able to meet the requirement of mass production. ©, 2014, South China University of Technology. All right reserved.


Qin-Xiang X.,South China University of Technology | Teng X.,South China University of Technology | Wei G.-M.,South China University of Technology | Ye F.-Y.,Guangdong Kelon Mould Co.
Applied Mechanics and Materials | Year: 2013

Multi-position progressive stamping is widely used in industrial fields, such as electronic, automobile and appliance, etc. Finite element numerical simulation has been an effective method to analyze the deformation of multi-position progressive stamping, the progressive die with 13 positions for the high strength steel automotive soleplate component part was manufactured based on the FEA simulation results obtained by multi-position multi-operation modeling method, and the corresponding progressive stamping experiments were carried out. The experimental results of the forward deep drawing of position 3 were further compared with the simulation ones, the results conform well to each other. © (2013) Trans Tech Publications, Switzerland.

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