Transactions of Materials and Heat Treatment

Title：Study of inner right-angle step shaping curve for cross wedge rolling cam part

Authors： HU Fu-sheng WANG Bao-yu HU Zheng-huan(School of Mechanical Engineering University of Science and Technology Beijing 100083 China)

Unit：

KeyWords： cross wedge rolling cam rotational formula shaping curve

ClassificationCode：TG335.19

year,vol(issue):pagenumber：2010,35(2):70-74

Abstract：

According to the process characteristics of cross wedge rolling,the math model of shaping cam shaft was simplified and the rotation formula that indicated the big ending radius of spiral declined cone change with the rotation angles of rolled piece for the cam shaft was derived.The volume formula for each stage was obtained.The shaping curve of cross wedge rolling right-angle step was got through the volume balance principle.Finally,the shaping process of the cam shaft was simulated by the FEM software Deform-3D and the result was good.The correctness of shaping curve was verified.The study provides references for manufacturing and designing camshaft through cross wedge rolling.

Funds：

国家自然科学基金资助项目(50675019,50435010);; 北京市自然科学基金项目(3082013);; 国家科技支撑计划项目(2006BAF04B03)

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