论文部分内容阅读
以C919大飞机中央翼上下椽条的激光立体成形为研究对象,以激光立体成形扫描路径的工艺过程控制为目标,通过构建激光立体成形工艺参数的样式表达数据库,为椽条扫描路径设定不同的成形工艺参数。通过扫描路径的轮廓偏置生成矩形包围盒测试区域,结合“命中因子”自动判断下一层中相似扫描路径,从而为其指定相同的样式号。根据用户为不同路径设定的不同样式,自动生成激光立体成形数控作业文件。使用该方法实现了不同路径的不同成形工艺参数的设定,多层间样式自动继承,降低了工艺设计人员的操作负担,杜绝了加工过程中人为因素的影响,使工艺设计、数控操作职责明晰,满足了适航认证对激光立体成形过程控制的要求。
Taking the laser three-dimensional forming of the upper and lower rafters of the central wing of C919 large aircraft as the research object, the laser three-dimensional forming scanning path process control is taken as the goal. By setting up the database of the laser three-dimensional forming process parameters, Forming process parameters. The rectangular bounding box test area is generated by the contour offset of the scan path, and the similar scan path in the next layer is automatically determined in combination with the “hit factor” to assign the same pattern number to it. According to different user-set for different paths of different styles, automatic generation of three-dimensional laser forming CNC job files. Using this method, different forming process parameters of different paths are set and multi-layer styles are automatically inherited, which reduces the operation burden on the process designer and eliminates the influence of human factors in the process, so that the responsibility of process design and numerical control operation is clear , To meet the airworthiness certification on the laser three-dimensional forming process control requirements.