Study on Simulation of Stamping Process and Optimization of Process Parameters of Fender

Abstract

In order to obtain the optimum technological parameters of fender forming, the finite element analysis software DYNAFORM is used to simulate the drawing process of fender in this paper. The orthogonal test is designed and completed. On the basis of the orthogonal test, Taguchi method is used to design the orthogonal inner table, and the SNR of each factor at each level is calculated. The results of Taguchi method are analyzed with variance analysis, and the adjustable influencing variables and influence factors on quality stability that affect the forming quality of the fender are obtained. Experimental optimization of the adjustable variables is carried out again to obtain the optimal combination of process parameters that affect the shaping quality of the fender. The optimal combination of process parameters is as follows: blank holder force is 120 kN, model clearance is 1.0 t (t represents sheet thickness), friction coefficient is 0.11, and radius of die is 6 mm. Finally, the experimental results show that the fender manufactured with this combination of process parameters has better performance.

Analisis desain stamping die menggunakan FTI forming suite

“…Setiap percobaan biasanya membutuhkan tiga hingga tujuh kali untuk mengetahui apakah ada cacat, yang memakan waktu tiga hingga lima hari, tidak termasuk waktu untuk modifikasi cetakan, yang mengakibatkan biaya, waktu, dan sumber daya yang lebih tinggi. Cacat umum seperti kerutan, retak, penipisan berlebihan, springback, dan cacat pembentukan lainnya sering terjadi [1]. Geometri die memainkan peran penting dalam mencegah cacat, khususnya radius sudut [1], [2].…”

“…Cacat umum seperti kerutan, retak, penipisan berlebihan, springback, dan cacat pembentukan lainnya sering terjadi [1]. Geometri die memainkan peran penting dalam mencegah cacat, khususnya radius sudut [1], [2]. Demikian pula parameter stamping seperti gaya blank holder berpengaruh signifikan terhadap hasil stamping [3]- [5].…”

“…Gaya blank holder ditentukan secara eksperimental sebelumnya [7], yang merupakan 34% dari gaya pembentuk. Koefisien gesekan dan jarak ruang (clearance) model seperti yang disarankan [1], tidak termasuk dalam perhitungan ini.…”

Research on stamping forming prediction of aluminum alloy sheet based on RBF neural network

“…Zhao et al [4,5] studied the influence of different temperatures and punch penetration on the failure behavior of metallic sheets during stamping by combining experimental and numerical methods. Wu et al [6] carried out a relevant study on stamping process simulation and process parameters optimization of the fender. Cui et al [7] implemented the multi-objective optimization of partition cooling in hot stamping of the automotive b-pillar by investigating the process parameters.…”