金属加工（热加工）Issue(9)：14-19,24,7.
基于曲面插值算法的径向搅拌摩擦增材修复形状控制技术
Shape control technology for radial friction stir additive repair based on surface interpolation algorithm
摘要
Abstract
During the radial stirring friction additive repair process,the excessive gap between the contour channels affects the positioning effect of the control points on the surface of the additive repair,making it difficult to confirm changes in height,width,and tilt angle.There are also problems with significant differences in the shape and contour of the repair area,as well as poor flatness.Therefore,a radial stirring friction additive repair shape control technology based on surface interpolation algorithm is proposed.Calculate the additive heat input and flow velocity during the repair process of the area to be repaired,calculate the height,width,and tilt angle changes of the repair area,and analyze the shape change pattern of the area to be repaired.Apply surface interpolation algorithm to calculate the weight factor values of the repaired shape,construct a surface model,set the interpolation function,and filter the specific control points of the repaired shape based on the shape of the area to be repaired.Based on control points,design a shape controller and combine it with a thermal cycle optimization function to achieve shape control for radial stirring friction additive repair.The experimental results show that after shape control repair treatment,the defect holes are not only filled flat,but the surface is also smoother.The straightness tolerance value of the modified shape is relatively small,and the shape of the repair area is basically consistent with the contour of the set repair area.The average contour is 0.93,and the surface flatness is 0.96,which can accurately control the shape of the radial stirring friction additive repair.关键词
曲面插值算法/径向搅拌头/摩擦增材修复区域/形状控制/修复形状变化规律/插值函数Key words
surface interpolation algorithm/radial mixing tool/friction additive repair area/shape control/repair the pattern of shape changes/interpolation function引用本文复制引用
胡焱玲,杨帅,刘国廷,贾本业,汪卓然,郭佩宏,安海俊,董鹏..基于曲面插值算法的径向搅拌摩擦增材修复形状控制技术[J].金属加工（热加工）,2025,(9):14-19,24,7.基金项目
山西省自然科学基金青年基金项目(202303021222228). （202303021222228）
