对称式三辊卷板机厚板压弯工艺参数分析  

Analysis of process parameters of symmetrical three-roll veneer reeling machine for thick plate

作　　者：乔波[1] 雷步芳[1] 付建华[1] 赵康[1] 牛婷[1] 

机构地区：[1]太原科技大学材料科学与工程学院,山西太原030024

出　　处：《重型机械》2013年第2期32-36,共5页Heavy Machinery

基　　金：山西省重大专项(20111101032)

摘　　要：为研究对称式三辊卷板机卷制双线性硬化模型板料成型过程,确定上辊压下时上辊与板料之间的接触力以及上辊压下量和板料最终成型半径间的关系。通过理论模型,推导出板料弯矩与板料截面所受剪力之间的关系。通过板材受力分析,求出截面剪力。利用已知的板材弯矩表达式导出上辊压下量、板料成型力分别与板料回弹前相应的滚弯半径间的变化关系,并给出相应的关系图。The plate forming process of bilinearity harden model of symmetrical three-roll veneer reeling ma- chine is studied. The contact force between upper roll and metal plate when the upper roll is pressed down, and the relationship between rolling reduction of upper roll and final forming radius of steel plate is determined. The relationship between bending moment of metal plate and shearing force loaded in the plate cross-section was de- duced according to the theoretical model. Through the stress analysis of steel plate, the shearing force was cal- culated. The relationship between upper roll displacement and roll-bending radius （before rebound） and the re- lationship between plate forming force and roll-bending radius （before rebound） were obtained with the known bending moment expressions. The corresponding diagram is given in this paper.

关 键 词：变形力 接触角 滚弯半径 对称式三辊卷板机 

分 类 号：TG333.2[金属学及工艺—金属压力加工]