吉林大学韩奇钢教授：曲面构件柔性成形制造技术研究进展

报告题目：曲面构件柔性成形制造技术研究进展报 告 人：韩奇钢（吉林大学教授）报告时间：2024年7月8日（星期一）上午10：00—11：00报告地点：机械与汽车工程学院19号楼201会议室主办单位：机械与汽车工程学院  报告人简介：  韩奇钢博士是吉林大学材料科学与工程学院教授、博士生导师、副院长；兼任工程仿生国家地方联合工程实验室副主任、中国机械工程学会塑性工程分会委员、中国材料研究学会青年工作委员会理事等职务。主要从事曲面构件的柔性制造原理、工艺与技术装备研究。承担国家、部省级项目30余项，在Composites Part B: Engineering、Composites Science and Technology等期刊累计发表论文70余篇，获授权发明专利及软件著作权32项，在国内外学术会议作邀请和主题报告30余次。荣获吉林省青年科技奖、机械工业科学技术奖（技术发明）一等奖、吉林省科学技术奖（技术发明）一等奖2项、吉林省教学成果特等奖、吉林省第十八批创新创业人才等。 报告摘要：  Multi-point flexible manufacturing is usually used for small batch production of metal parts, which forms different shapes by adjusting the height of discrete units of multi-point tooling to replace multiple dies. Recently, multi-point flexible manufacturing has been investigated for small batch production of composites. However, problems of indentation and dimensional accuracy of formed parts need to be solved. In this work, three different thicknesses of silicone pads are used to reduce the indentation on the composite parts. Adding an additional silicone pad between the formed sample and the multi-point tooling can effectively suppress indentation. There are few forming defects when the thickness of the silicone pad is 2 mm. However, the shape error increases significantly when the thickness increases from 2 mm to 3 mm. Therefore, the silicone pad with a thickness of 2 mm is chosen as the indentation suppression pad. In addition, the samples are compensated by means of response surface analysis, which aims to improve the dimensional accuracy of composite parts. The curing deformation angle before compensation is negative degree of 2.856, while the curing deformation angle after compensation is reduced to degree of 0.157. The forming accuracy is improved by 94.2%. A new mechanism and method of multi-point flexible manufacturing are proposed to enhance the surface quality and suppress the residual stresses of fiber-reinforced composites, which has great potential for applications in aerospace and rail transportation fields.