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A Study on the Perforating Process of the Muffer Tube using FEM

Han Kyu-Taek    (School of Mechanical Engineering, Pukyong National University  );
  • 초록

    Recently there has been a growing interest in the design and manufacturing of the muffler tube due to the strict environment regulations, A muffler is an important part used to reduce noise and to purify exhaust gas in cars and heavy equipment. The shape of the muffler tube and the number of the tube hole has been made variously according to the weight and function of the car. The perforating technique of the muffler tube has a great influence on the manufacturing cost. In this study, metal forming analysis has been carried out to investigate the perforating process for the muffler tube and predict an optimal forming conditions of the muffler tube, Also its simulation results by the finite element method were reflected to the die design and the manufacturing system for the muffler tube. The perforating process is performed in the longitudinal direction of the tube. According to the simulation results, when the shear angle of punch was similar to the tube curvature, the optimal shape was obtained. Also when the clearance of die was 0.2mm, the burr was minimized and optimal shear section was obtained.


  • 주제어

    Muffler tube .   Perforating .   Clearance .   Finite element method.  

  • 참고문헌 (8)

    1. I. Aoki, 'Tool Wear in Shearing of Amorphous Alloy Foils-Shearing of Amorphous Alloy Foilsn-II,' J. of JSPT. Vol.27, No.308, pp. 1078-1083, 1986 
    2. F.Faura. A.Garcia M.Estrems, 'Finite element analysis of optimum clearance in the blanking process,' Journal of Materials Processing Technology 80-81. pp. 121-125, 1998 
    3. K.T.Han. J.K.Seo. 'A Study on the Slitting Working by Finite Element Analysis,' Journal of KSPSE, pp. 56-63, 2001 
    4. D.C.Ko. B.M.Kim, 'Prediction of Tool Wear in Shearing Process by the Finite Element Method,' Journal of KSPE, Vol.16, No.1, pp. 174-181, 2001 
    5. S.W.Lee. M.S.Joun, 'Rigid- Viscoplastic Finite Element Analysis of Piercing Process in Automatic Simulation of Multi-Stage Forging Processes.' J. of KSTP, Vol.8, No.2, pp. 216-221. 1999 
    6. K.T.Han, J.S.Park. 'On the Deformation of the Brake Tube-End for Automobiles,' Journal of KSPSE, pp. 31-35, 2002 
    7. S. Kobayashi, S.I.Oh, Metal Forming and the Finite Element Method, Oxford University Press, p.90. 1989 
    8. Scientific Forming Technologies Corporation, $DEFORM^{TM}-3D$ User's Manual, 1995 
  • 이 논문을 인용한 문헌 (2)

    1. Moon, Namsoo ; Lee, Sangkyoo ; Lee, Jeekeun 2013. "Analysis of an internal flow with multi-perforated tube geometry in an integrated Urea-SCR muffler" 한국마린엔지니어링학회지 = Journal of the Korean Society of Marine Engineering, 37(5): 500~509     
    2. Moon, Namsoo ; Lee, Sangkyoo ; Ko, Sangchul ; Lee, Jeekeun 2014. "Study on NOx Reduction with Multi-Perforated Tube Geometry in Integrated Urea-SCR Muffler" 大韓機械學會論文集. Transactions of the Korean Society of Mechanical Engineers. B. B, 38(12): 1017~1026     

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