生产瓷砖用的模具上有多个尺寸大于200mm×200mm的方孔。方孔的加工一般是先在立式铣床上用圆柱立铣刀进行切削,然后在插床上插削各内圆角,再通过钳工修挫、打磨来保证方孔的尺寸和形状精度。其主要缺点有: (1)若选择直径较大的圆柱铣刀加工,会在孔的四角留下较大的圆角,使后续工序的切削量增 The mold for producing ceramic tiles has a plurality of square holes larger than 200 mm × 200 mm in size. Square hole processing is generally the first vertical milling machine with a cylindrical end mill for cutting, and then inserted in the slotted cut fillet, and then fitter setback, polished to ensure the square hole size and shape accuracy. The main drawbacks are: (1) If you choose a larger diameter cylindrical milling cutter, will leave a larger corner of the four corners of the hole, the follow-up of the incremental cutting process