| dc.identifier.citation | Anggono, A.D. , Siswanto, W.A., 2013. Simultion of Ir oning Processf or Earring Reduction in Sheet Metal Forming. Appl. Mech. Mater. 465- 466, 91–95. doi:10.4028/www.scientific.net/AMM. 465-46 6.91 Brabie , G. , Chirita , B., Albut, A., 2015. Minimization of sheet thickness var iat ion and other defects of mini drawn parts us ing a blank holder plate made from concentr ic rings. Precis. Eng. 42, 311– 320. doi:10.1016/j.prec is ioneng.2015. 03. 011 Gong, F., Yang, Z., C hen, Q. , Xie, Z., Shu, D., Yang, J., 2015. I nfluences of lubrication conditions and blank holder force on micro deep drawing of C 1100 micro conica l–cylindrica l c up. Precis. Eng. 42, 224–230. doi:10.1016/j.prec is ioneng.2015. 05. 004 Qin, S., Xiong , B. , Lu, H. , Zhang, T. , 20 12. Critica l blank- holder force in axisymmetric deep drawing. Trans. Nonferrous Met. Soc. China 22 , s239– s246. doi:10. 1016/S1 003- 6326(12)61714- 2 | in_ID |
| dc.description.abstract | The purpo se of this research is to determine the eff ect of variations of blank holder force (BHF) an d friction coefficient against wrink ling and thinning defects in the cup drawing process. Simulation s is carried ou t to replace the trad itional method of trial and error. Therefore, the production cost and time can be reduced. There are five variations o f blank holder f orce used in this simulation i.e 37, 57, 77 , 9 7 and 117 N and four variation s of the f riction coefficient of 0.05,
0.15 , 0.25, and 0.35 . Aluminium and Zinc was selected as b lank material with the thick ness of 0.32 an d 0.3 mm respectively. The result shows that the wrink ling was decreased in the increasing of BHF an d friction coefficient. However, the thinning was increased as well. Finally, the opti mum BHF must be selected to give better results in both wrink ling and thinning . | in_ID |
