环件轧制原理和设计方法

分析了环件轧制变形特点，提出了环件轧制咬入、锻透和弯曲力学模型，建立了环件轧制咬入条件、锻透条件和刚度条件，阐明了环件轧制原理。基于环件轧制原理，建立了环件轧制技术设计方法，导出了轧制用毛坯。孔型和轧制进给参数设计计算公式。根据环件轧制试验结果，对其咬入条件和锻透条件进行了验证。

PRINCIPLE AND DESIGN METHOD FORRING ROLLING

The deforination characteristics of ring rolling are analysed. The mechanical mo-dels for biting in,plastic penetration and bending in ring rolling are proposed, furthermorethe criteria for biting in, plastic penetration and digidity in ring rolling are established.Thering rolling principle is explained systematically based on them. Technology design methodfor ring rolling is developed in basis of the ring rolling principle, and calculating formulaefor preform, `groove and feeding parameters are derived. The criteria for biting in and plastiepenetration are verified apcording to ring rolling experimental results.