弧形壁板反变形控制仿真技术研究

Research on Simulation Technology of Anti-deformation Control of Arc-Shaped Wall Plates

为了控制航天产品重量,需要对零件进行薄壁化设计,但弧形壁板在加工过程中容易产生变形。本文通过仿真手段对产品的辊轧工艺、切削加工进行分析,确定产品在制造过程中出现问题的原因。进而采用反变形的方法来控制壁板变形,通过仿真分析手段对反变形方案进行评估,研究了不同辊轧方案参数下产生的毛坯残余应力和毛坯几何外形,并分析不同的毛坯和残余应力造成的切削加工变形趋势,最终为反变形方案的优选提供数据支撑和评判依据。

In order to control the weight of aerospace products,thin-walled design of parts is required,but arc-shaped wall plates are easy to deform during processing.In this paper,the rolling process and cutting process of the product are analyzed by simulation to determine the cause of the problem in the manufacturing process.Furthermore,the anti-deformation method is adopted to control the deformation of the wall plate,and the anti-deformation scheme is evaluated by simulation analysis means.The blank residual stress and blank geometry under different rolling scheme parameters are studied,and the deformation trend of cutting caused by different blank and residual stress is analyzed.Finally,it provides data support and evaluation basis for the optimization of anti-deformation scheme.