Force and stress analysis of double press machine in use with single-action die press

Authors

Abstract

Industrial press units have divided into two primary groups; single action and double action. Single action press has a mechanism that guide drawing slide. Double action unit has blank holder mechanism too. Double action press die has more weight and in conclusion is more expensive than a single action. For the mentioned reasons, sometimes a single action die is utilized for a double action press in which the blank holder mechanism is not used and the unit is changed to a single action one. The main goal of this article is dynamic and stress analysis of this case. In this paper, for kinematic analysis, mathematical model of the mechanism is obtained. Then dynamic analysis of a double action mechanism with standard die and also with small die of single action case, have been provided. This research has ended with stress analysis of these two states. Simulations show that use of single action die for double action press increase the force and stress in the ram mechanism joints. So this usage in double action press, increase the failure chance in the press mechanism.

Keywords

Main Subjects


[1] Schuler GH (1998) Metal forming handbook. Springer, Berlin Heidelberg.
[2] Orville DL (1988) Handbook of Fabrication Processes. ASM International.
[3] س. باقرزاده،  م. حیدری (1387)  تعیین بازه بهینه نیروی ورقگیری در عملیات کشش سقف خودرو 206 به روش المان محدود. ششمین کنفرانس سالانه دانشجویی مهندسی مکانیک.
[4] Hwang M, Chiou T (1995) A Drag-Link of Mechanical Presses for Precision Drawing. Int J Mach Tools Manufact 35(10): 1425-1433.
[5] Soong RC (2010) A new design method for single DOF mechanical presses with variable speeds and length-adjustable driving links. Mech and Mach Theory 45: 496-510.
[6] ح. ظهور، ع. درگی (1386) بهینه‌سازی سینماتیکی مکانیزم 8 میله‌ایی پرس‌های مکانیکی فرم‌دهی ورق با استفاده از الگوریتم ژنتیک. پانزدهمین کنفرانس سالانه بین‌المللی مهندسی مکانیک.
[7] Tso PL, Liang KC (2002) A nine-bar linkage for mechanical forming presses. Int J Mach Tools  Manufact 42: 139-145.
[8] Yossifon S, Shivpuri R (1991) Analysis and comparison of selected rotary linkage drives for Mechanical Presses. Int J Mach Tools Manufact 33(2): 175-192.
[9] Yossifon S, Shivpuri R (1991) Optimization of a double knuckle linkage drives with constant mechanical advantage for mechanical presses. Int J Mach Tools Manufact 33(2):193-208.
[10] Ham C, Jang DC (2009) Kinematical analysis on the several linkage drives for mechanical press. J Mech Sci Tech 23: 512-524.
[11] Chval Z, Cechura M (2013) optimization of power transmission on mechanical forging presses. 24th DAAAM Int. Symposium on Intelligent Manufact. and Autom.
[12] Chval Z, Cechura M (2014) Monitoring extremely stressed points on stands of forging presses. 25th DAAAM Int. Symposium on Intelligent Manufact. and Autom
[13] مهیار فضل‌یاب، محمدعلی حسینی تاش (1388) طراحی نرم‌افزار تحلیل سینماتیک، دینامیک، کالیبراسیون و تحلیل خرابی در پرس 2000 تن، دانشگاه صنعتی شریف، دانشکده مهندسی مکانیک.
[14] Verson, MD (1969)  Impact machining. Verson All steel Press Company, Chicago.
[15] Sandor GN, Erdman AG (1984) Advanced mechanism design: analysis and synthesis. Prentice Hall, Eaglewood Cliff, New Jersey.
[16] Norton RL (2011) Kinematics & Dynamics of Machinery. 5th edn. McGraw-Hill, New York.
[17] Hartenberg RS, Denavit J (1964) Kinematic synthesis of linkage. McGraw-Hill, New York.
[18] اصغر کرایه چیان (1386) محاسبات عددی، چاپ پنجم، مشهد، دانشگاه فردوسی.
[19] Meriam JL (2012) Engineering mechanics dynamics. 7th edn. Rhode Island: John Wiley.
[20] Semiatin SL (1996) Forming and forging, ASM Handbook Int.
[21] گییر، تیموشنکو (1383) مقاومت مصالح، غلامحسین مجذوبی، محمود نیلی، چاپ پنجم، همدان، دانشگاه بوعلی‌سینا.
[22] امیر تقوی، محمدعلی حسنی تاش، مهیار فضل‌یاب (1388) گزارش فاز دوم پروژه اینترنشیپ، اسناد فنی شرکت ایران‌خودرو، تحلیل سینماتیک، دینامیک، کالیبراسیون و طراحی نرم‌افزار تحلیل خرابی پرس 2000 تن.
[23] Budynas RG, Nisbett KJ (2006) Shigley's mechanical engineering design. 9th edn. McGraw-Hill, New York.