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楔横轧随形轧制空心零件在过渡轴肩位置会产生壁厚减薄,降低零件的力学强度,改善轴肩的壁厚状况是必须解决的问题.本文基于有限元模拟方法,揭示空心零件成形时壁厚减薄的产生原因,提出采用楔横轧反楔堆轧改善轴肩壁厚的成形方法,分析反楔堆轧增加轴肩壁厚的主要影响因素,从而获得轴肩壁厚增厚的成形方法和最佳条件,实现了楔横轧随形轧制空心零件轴肩位置的显著增厚.通过轧制试验,验证了有限元模拟分析模型的可靠性.
Cross-rolling rolling with the cross-shaped components in the transition shaft position will result in thinning the thickness of the shaft to reduce the mechanical strength and improve the shoulder thickness of the shaft wall condition is the issue to be solved.This paper based on finite element simulation method to reveal hollow parts The reasons for the thinning of the wall thickness during forming are proposed. The forming method to improve the shaft shoulder wall thickness by wedge cross rolling wedge rolling is proposed, and the main factors that increase the shaft shoulder wall thickness by inverse wedge heap rolling are analyzed. Thick forming method and the best conditions to achieve a significant thickening of the shoulder position of the cross-rolling with concentric rolling hollow parts.Through the rolling test, the reliability of the finite element simulation analysis model was verified.