Transactions of Materials and Heat Treatment

Title：Influence of preformed blank on spin-forming of cup-shaped thin-walled trapezoidal inner gear

Authors： SUN Ling-yan YE Bang-yan XIA Qin-xiang(School of Mechanical and Automobile Engineering South China University of Technology Guangzhou 510640 China)

Unit：

KeyWords： inner gear spinning numerical simulation performed blank thickness thickness deviation

ClassificationCode：TG306

year,vol(issue):pagenumber：2010,35(1):49-52

Abstract：

The influence of performed blank thickness and deviation on the forming quality of the spun parts during cup-shaped thin-walled trapezoidal inner gear spinning were discussed based on numerical simulation and experimental investigation.It shows that when the performed blank thickness is undersize,the excess reduction ratio results in a decrease of tooth height and indentation on the outside of workpiece,due to lack of sufficient filling material.The uniformity of performed blank thickness can also influence the inner gear forming.The thickness deviation within 2.5% is helpful to improve the quality of inner gear.

Funds：

国家自然科学基金资助项目(50475097);; 广东省自然科学基金面上重点项目(04105943);; 广东省科技计划项目(2006B11901001)

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