我厂是生产工程机械的,对产品的质量要求根严,一些零件的切割下料都是由仿形切割机完成的。在切割过程中,由于受热变形、割嘴的选择、仿型机切割机的精度及靠模样板的精度等因素的影响,给切割零件造成一些积累误差,使所切割的零件达不到图纸的要求,往往会出现内孔或外形尺寸 I plant is the production of construction machinery, the quality of the product requirements of the root, some cutting parts are cut by the copying machine to complete. In the cutting process, due to thermal deformation, the choice of cutting nozzle, the accuracy of the model machine cutting machine and by the model precision and other factors, the cutting parts to create some accumulation error, so that the cut parts can not reach the drawings Requirements, often appear in the hole or dimensions