Transactions of Materials and Heat Treatment

Title：Numerical analysis and experimental study on spinning forming of Al alloy multiple V-groove pulley

Authors： Zhang Meijun Liu Fuhe

Unit： Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences

KeyWords： multiple V-groove pulley upsetting forming spinning forming metal streamline Vickers-hardness

ClassificationCode：TG335.13

year,vol(issue):pagenumber：2015,40(2):79-86

Abstract：

For multiple V-groove pulley P6PL118 used in clutches of automobile alternator, a new process which combined the upsetting forming with the spinning forming was proposed. The influences of friction coefficient, billet reduction and feed amount of spinning roller on metal flow, load and strain distribution in the upsetting forming and spinning forming were studied based on software Deform. The multiple V-groove pulley forming experiment was carried out on the spinning machine. The results show that the dimensional requirement of multiple V-groove pulley is fitted and its grains are smaller than before. Furthermore, the forming streamlines of tooth top and tooth root of workpiece are clear in the direction of tooth profile. Hardness of workpiece top is improved significantly after spinning, and hardness of the middle part of workpiece is ranked secondly, while the hardness of workpiece root is improved just a little. Vickers-hardness of the average after spinning is increased by 25.9% compared with that of the billet, which results in the good tooth surface hardness and wear resistance.

Funds：

国家自然科学基金资助项目（50905137）

张美君（1985-），男，硕士，研究实习员

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