Press Forging Forming of the Round-Fin on Heat Sink

Abstract:

Press forging forming is a combined extrusion process for forming round-fin on heat sink on thick metal sheets. A series of simulations on the round-fin forming using the program DEFORM were carried out. The blank thickness and friction coefficient on the formation of round-fin were studied. The results show that the blank thickness is very good for the round-fin formation, and the thicker the blank is, the better the round-fin can be formed; and also when both the punch-blank interface and the die-blank interface have the same value of friction factor, the larger value of friction factor is in favor of round-fin forming, the further investigation reveals that the friction at the punch-blank interface has more significant effect on preventing the initiation of flow-through compared with the friction at the die-blank interface, which implies that the punch-blank interface has more significant effect on the material flow in the formation of round-fin.

• Periodical: Advanced Materials Research (Volumes 706-708)
• Pages: 448-451
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.706-708.448
• Online since: June 2013
• Authors: Chong Chao Lin, Ke Sheng Wang, Yu Han, Li Han Zhang
• Keywords: Finite Element Analysis (FEA), Press Forging, Round-Fin

References

[1] Cheng Sun, Shi-Hong Zhang, Wei Dong Tang and Zhong-Tang Wang: Materials and Manufacture Processes Vol.25(2010), P. 534

[2] Lu Xianfeng, Zhang Ruhua and Min Shuigen: Chinese Journal of Mechanical Engineering Vol.43(2007), P.184

[3] Ulysse P, and Johnson RE: Int. J. Mech. Sci. Vol.41(1999), P.1067

[4] Zhang Shihong, Zhou Lixin and Wang Zhongtang: Journal of Plasticity Engineering Vol. 15(2008), P.31-36

[5] Hua Lin, Liu Shenglin and Xu Hao, Journal of Plasticity Engineering Vol. 15(2008), P.46

[6] Yang J. B., Yang S. J., Chen l. R. and Yang R. C.: Forging Vol. 11(2002), P.23

[7] Chen F. K., Huang T.B., and Chen S. G.: Int. J. Adv. Manuf. Technol. Vol.32(2007), P.272