This paper presents a method for optimizing roughing operations in CNC machining particularly for parts production through a subtractive rapid manufacturing process. The roughing operation in machining is primarily used to remove the bulk of the material and to approximately shape the workpiece towards the finish form. The manufacturing process described utilizes a 3-axis CNC machine with an indexable 4th axis device that is used to hold and rotate the workpiece. The method used is derived from the multiple approaches in roughing operations that differ in the number and the angle of the orientations. Most of the machining parameters are generalized throughout the process to allow some automation in generating the machining program. Overall, the performance of each of the approaches is evaluated based on the lowest machining time to produce the part. udud
展开▼
机译：本文提出了一种用于优化CNC加工中的粗加工操作的方法，特别是通过减法快速制造工艺生产零件的方法。机加工中的粗加工主要用于去除大部分材料，并使工件近似于最终形状。所描述的制造过程使用带有可转位第4轴设备的3轴CNC机床，该设备用于固定和旋转工件。所使用的方法是从粗加工中的多种方法派生而来的，它们的方向数量和角度不同。大多数加工参数在整个过程中都是通用的，以便在生成加工程序时实现一些自动化。总体而言，每种方法的性能都是基于生产零件所需的最短加工时间进行评估的。 ud ud
展开▼
