A Macro-Micro Coupled Simulation of Positive and Negative Extrusion for Cardan

Abstract:

The cardan belong to dial the fork kind parts, its forming is difficult and forming high quality requirements. Establish macro-micro coupling, and a simulation model for the cardan negative extrusion forming process, a numerical simulation considering the deformation and heat conduction, deformation heat production, friction heat production, dynamic recrystallization and so on many factors. Analyze the deformation process detection cardan anti extruded deformation in advance and is extruded deformation. Meanwhile analysis showed that the cardan forgings have internal 59.929% area completely modification, have 4.7944% area did not happen dynamic recrystallization and didn't get forging modification, and forecasts the cardan internal grain size and distribution, the micro analysis for the prediction of forgings performance and design heat treatment process, provides the basis.

• Periodical: Advanced Materials Research (Volumes 230-232)
• Pages: 310-314
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.230-232.310
• Online since: May 2011
• Authors: Ying Tong
• Keywords: Cardan, Dynamic Recrystallization (DRX), Negative Extrusion, Positive Extrusion

References

[1] Wen Li, Lu Fenglan, Zhou Jie. Precision-forming study and test [J]. Journal of metal forming process, 21 (4) : 65-67.

[2] Chen Huiqin, Liu Jiansheng, Guo Huiguang. Mn18Cr18N steel hot forming grain change modeling study [J]. Journal of metal trans., 1999, 35 (1) : 53-56.

[3] Quan Guozheng, Zhu Ruoling, Zhou Jie. Metal forming complicated multi-factor volume dynamic coupling simulation model and application [J]. Journal of thermal processing, 2008, 37 (7) : 1-5.

[4] Lin Yongcheng, Chen MingSong, Zhong Jue. Press the 42CrMo rigid-plastic ratio on the forming and microstructure evolution of infection [J]. Journal of central south university (natural science edition), 2008, 39 (5) : 1005-1010.