The key problems of cold power spinning of Ti-15-3 alloy are studied. Reasonable biller preparation methods are presented to improve crystal structure and avoid crack of billet. Influences of original wall thickness, reduction rate and feed rate on expanding in diameter are analyzed and some methods to prevent expanding in diameter are given.
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harbin inst technol, sch mat sci & engn, harbin 150001, peoples r china. chinese acad sci, inst met res, shenyang 110015, peoples r china.;shan, db (reprint author), harbin inst technol, sch mat sci & engn, harbin 150001, peoples r china
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