Process Optimization of Synchronizer Ring Gear Extrusion

Abstract:

Nowadays the immature of the precise synchronizer gear ring processing method have greatly impeded the development of the vehicle business in China. The extrusion process is a very important procedure in making precise synchronizer gear ring, but there is not any introductive and effective research yet to the issue of the optimal processing parameter in precise synchronizer gear ring procession. This research provides several processing parameters in precise synchronizer gear ring procession by means of simulating the processing in DEFORM-2D software and trying it in reality. The result shows that the whole three processing procedures have influence in the result of the gear ring. The second procedure is the most influential, followed by the fist procedure. Adjustment can be effectively conducted on the product of the first procedure by changing the fillet radius of the top die and the bottom die, R1, R2; adjustment can be effectively conducted on the product of the second procedure by changing the fillet radius of the top die and the bottom die and the angle of the upper inclination of the top die,α2. The result of this paper gives an instruction in precise synchronizer gear ring procession.

• Periodical: Applied Mechanics and Materials (Volumes 268-270)
• Pages: 447-453
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.268-270.447
• Online since: December 2012
• Authors: Heng Yu Zhu, Jian Lan, Yong Zhang
• Keywords: Finite Element (FE) Simulation, Precision Cold Extrusion, Synchronizer Gear Ring

References

[1] Bin Hu. Steel synchronizer ring gear precision forming technology research. Chongqing university, master's degree thesis,2005(In Chinese)

[2] Lin hua, Huachang Wang . Iron base synchronizer ring gear powder forging process. Applicable technology market,1995,No.7(In Chinese)

[3] Fei Cheng. Steel synchronizer ring gear precise forging forming technology research, Mould Technology,2006,No.6(In Chinese)

[6] Wenqin Zhang . Roll grinding method in producing car synchronizer ring gear. shanghai Nonferrous Metals.2005.3(In Chinese)

[7] Peng Jiang. Precise forging synchronizer ring gear friction pressure of common design method. Automobile Technology & Material .1995.4(In Chinese)

[8] Xiaofeng Dai. Car synchronizer ring gear precision die forging process. metal forming machine.1999.3(In Chinese)

[9] Zhongxin Yu. Research in synthesis and properties of car synchronizer ring gear friction material. Lubrication and seal.2005.1(In Chinese)

[10] Douglas C. Montgomery. The design of experiments and analysis. China statistical publishing house,(1998)