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Abstract：
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The experimental research on the spin-forming of cup-shaped thin-walled trapezoidal inner-gear was carried out.The influence of various parameters on the tooth profile forming was investigated experimentally,including thickness reduction per pass,feed rate of rollers,spinning methods and surface-shape of roller.It shows that the thickness reduction per pass is the main parameter influencing the spin-forming of trapezoidal inner-gear.The defects of non-uniform distribution of tooth height along axial or tangential direction,the difference of the axial elongation between the gear tooth and groove etc.,can be decreased or eliminated by stagger spinning,changing rotation direction of main spindle,and applying a pressure force to the opening-end of workpiece along axial direction.The qualified samples are produced based on the optimized forming parameters obtained by experiment.
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Funds：
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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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AuthorIntro：
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Reference：
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