CAJ | 학술논문

基于双轴柔性滚弯技术原理，建立了采用0Cr15Ni7Mo2Al 材料制备小直径开缝衬套过程的三维有限元模型，以指导实际小直径开缝衬套的制备。利用该模型分析了衬套应力应变分布、刚性轴受力变形情况、衬套成形曲率半径与刚性轴直径的关系及衬套成形曲率半径与带材尺寸的关系，并用滚弯试验验证了该模型的准确性。结果说明：带材滚弯变形随着进给量的增加而更均匀；刚性轴受力随其直径的减小而减小，刚性轴变形程度随其直径的减小而增大；衬套成形曲率半径随着刚性轴直径的增大而增大；衬套成形曲率半径随着带材宽度和厚度的增大而增大。
기우쌍축유성곤만기술원리，건립료채용0Cr15Ni7Mo2Al 재료제비소직경개봉츤투과정적삼유유한원모형，이지도실제소직경개봉츤투적제비。이용해모형분석료츤투응력응변분포、강성축수력변형정황、츤투성형곡솔반경여강성축직경적관계급츤투성형곡솔반경여대재척촌적관계，병용곤만시험험증료해모형적준학성。결과설명：대재곤만변형수착진급량적증가이경균균；강성축수력수기직경적감소이감소，강성축변형정도수기직경적감소이증대；츤투성형곡솔반경수착강성축직경적증대이증대；츤투성형곡솔반경수착대재관도화후도적증대이증대。
Based on the two-axle bending technique,a three-dimensional FEA was developed for the manufacturing process of small-diameter split sleeve of 0Cr15Ni7Mo2Al,in order to guide the ac tual manufacture of the smal-l diameter s - plit sleeve.The model was verified with two-axle bending exepteerri, mweonrtks.Stress strain distribution,deformation of rigid axle,the relationship among rigid axle diam- piece size and curvature radius were analyzed.The simulation results show that workpiece deforms more equally with the increases of feed.The force of rigid axle becomes smaller with the in- crease of diameter,while deformation of rigid axle becomes lager with the decrease of diameter.The curvature radius increases with the increase of rigid axle diameter.The curvature radius increases with larger width and thickness of workpiece.