Mechanics Analysis and Numerical Simulation on the Precise Forming Process of Spline Cold Rolling

Li, Yong Tang; Song, Jian Li; Zhang, Da Wei; Zheng, Quan

doi:10.4028/www.scientific.net/msf.575-578.416

MSF

2008

DOI: 10.4028/www.scientific.net/msf.575-578.416

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Mechanics Analysis and Numerical Simulation on the Precise Forming Process of Spline Cold Rolling

Yong Tang Li

Jian Li Song

Da Wei Zhang

et al.

Abstract: The forming process of spline cold rolling was analyzed. The unit average pressure, contact area and rolling force in the cold rolling precision forming process were analyzed and solved. The mechanical and mathematical model has been set up on the basis of the analysis. The numerical simulation of spline cold rolling process was carried out. The results obtained by comparison of theoretical analysis, numerical simulation and experiment provide a theoretical basis for the study and application of spline cold ro… Show more

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Cited by 2 publications

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Influences of Friction Condition and End Shape of Billet on Convex at Root of Spline by Rolling with Round Dies

Zhang¹,

Zhao²

2018

Manufacturing Technology

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The rolling process is widely used to manufacture high-performance splined shaft components. However, there is a convex at root on free end of spline formed by rolling with round dies. However, the analysis and representation of this forming problem are difficulty due to the complexity of motion and multiplicity of processing parameters. This paper concentrates on the corner filling problem, and a physical analog experiment was designed to investigate the problem. The physical experimental results indicated that the designed experiment can reflect the formation of convex during spline rolling process. The finite element analysis of the physical analog experiment process was carried out to study the influences of friction condition and end shape of billet on convex at root of rolled spline. The results indicated that the height of convex will be reduced with increasing friction condition; the height of convex can be reduced by optimizing the end shape of billet. The results of present study provide a basis for optimizing and controlling the forming quality on free end during spline rolling process.

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Influences of Friction Condition and End Shape of Billet on Convex at Root of Spline by Rolling with Round Dies

Zhang¹,

Zhao²

2018

Manufacturing Technology

View full text Add to dashboard Cite

show abstract

Process and Properties on the Precision Forming of Spline Cold Rolling

Liu

Song

et al. 2010

AMR

Self Cite

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Cold rolling precision forming process of spline is one of the high-efficiency, precision and non-chip forming advanced manufacturing technologies. It has the characteristics such as high forming efficiency, energy-saving, low material consumption and better forming properties of components. The principle and the force of involute spline cold rolling precision forming process were analyzed. Forming experiments of involute spline cold rolling were carried out, and the microhardness map of the tooth outline was gained. The rule of the metal flow in the deforming area and the forming mechanics of the microstructure were analyzed. The influence of plastic deformation on the forming properties was also conducted. Experimental results showed that dramatic plastic deformation has taken place on the upper surface of the workpiece during the cold rolling process of spline, while the influence on the inner materials were very small. The grains were distributed as a flow line pattern along the tooth profile, and the grains in the plastic deformation zone presented a fine and long fibrous state. The hardness on the section of the tooth outline is regularly distributed. Compared with the spline components obtained from conventional cutting method, the hardness of the spline was greatly increased, therefore, comprehensive mechanical property such as wear resistance and impact resistance were largely improved. Precision measuring and hardness testing of the tooth outline section showed that the components obtained by the experiments were free of defects, and the application requirement can be satisfied.

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Mechanics Analysis and Numerical Simulation on the Precise Forming Process of Spline Cold Rolling

Cited by 2 publications

References 2 publications

Influences of Friction Condition and End Shape of Billet on Convex at Root of Spline by Rolling with Round Dies

Influences of Friction Condition and End Shape of Billet on Convex at Root of Spline by Rolling with Round Dies

Process and Properties on the Precision Forming of Spline Cold Rolling

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