Study on Microstructure of a Gear Shaft during Hot Forging Process

Guang Chun Wang; Bin Hai Hao; Chao Feng; Tao Wang

doi:10.4028/www.scientific.net/AMR.712-715.705

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Study on Microstructure of a Gear Shaft during Hot Forging Process
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 712-715Study on Microstructure of a Gear Shaft during Hot...

Study on Microstructure of a Gear Shaft during Hot Forging Process

Abstract:

The microstructure revolution of a spur gear shaft during hot forging was numerically simulated with FEM using Yada Model. The grain size distribution of the gear shaft after hot forged using initial billets with different dimensions was obtained through microstructure simulation and relative metallographic experiment show a good agreement with the simulation result. Effect laws of different forging parameters including the initial forging temperature and the punch speed, on grain size of the gear shaft after forged were given. A preforming process was proposed and the microstructure simulation shows that the preforming process can significantly improve the grain size refinement and distribution uniformity of the gear shaft by hot forging.