复合铣削的金属件堆焊成形尺寸研究

针对目前金属件堆焊中存在的成形效果较差和尺寸精度较低等问题,建立了单道和多道焊缝的尺寸模型,并通过分析焊缝成形尺寸的关系,确定出最佳熔敷间距。同时,采用正交试验法分析了各个焊接参数对成形尺寸的影响程度,验证了模型的普适性。在实例分析中,采用自主设计的复合铣削加工系统,并改变多层多道焊缝的堆焊路径,从而实现对构件尺寸的有效控制,验证了该项工艺技术的可行性和有效性。

Study on Forming Dimension of Metal Part in Composite Milling

To overcome the problem of part forming effect and surface quality in surfacing metal forming,the size model of single and multiple weld was established,the relationship between the welds was analyzed,and the optimum deposition distance was determined.At the same time,the orthogonal experiment was used to analyze the influence of the welding parameters on the forming dimension,and the universality of the model was verified.In the example,through the design of the composite milling system,changing the forming path,the forming size was effectively controlled,and the feasibility and effectiveness of the process were verified.