The aluminum alloy beams, frame aluminum profiles and frame aluminum profiles of general equipment require deep processing before they can be put into use. Generally, sawing, punching, tapping, milling, etc. are required. In the domestic aluminum processing industry, it is generally done by ordinary machine tools and CNC machining centers. Choose the machine for the precision of aluminum and aluminum alloys. Let’s take a look at the precautions for cnc long material processing. 1. The speed of the white steel knife can not be too fast. 3. When the workpiece is too high, it should be layered with different lengths of knife to open. 4. After roughing with a large knife, apply a small knife to remove the remaining material to ensure that the remaining amount is the same. 5. Plane application of flat-bottom knives, less ball knives to reduce processing time. 7. The four corners of the school plane should be flat. 8. Where the slope is an integer, apply a pitch knife, such as a pipe position. 9. Before doing each process, think about the remaining amount after the previous process is processed to avoid empty knife or excessive machining. 10. Try to take a simple path, such as shape, groove, single side, less walking and so on. 11. When going to WCUT, if you can take FINISH, don’t take ROUGH. 12. When the shape is light, first coarse light, then fine light, when the workpiece is too high, first light edge, then light bottom. 13. Set tolerances reasonably to balance machining accuracy and computer calculation time. When roughing, the tolerance is set to 1/5 of the margin, and when the knife is used, the tolerance is set to 0.01. 14. Do a little more work and reduce the emptying time. Do a little more thinking and reduce the chance of error. Do a little more auxiliary line auxiliary surface to improve processing conditions. 15. Establish a sense of responsibility and carefully examine each parameter to avoid rework. 16. Diligent in learning, good at thinking, and continuous improvement. Milling non-planar, multi-purpose ball knives, less end knives, don’t be afraid to connect knives; small knives clear angle, big knife refinement; don’t be afraid to make up the surface, appropriate complement surface can improve processing speed and beautify the processing effect. 17. High hardness of blank material: better up-cut milling Low hardness of blank material: better for down milling The machine tool has good precision, good rigidity and fine machining: it is more suitable for down-cut milling, and vice versa. Finishing at the corners of the part is strongly recommended to use down-cut milling. Roughing: better up-cut milling, finishing: better tooling, good toughness, low hardness: more suitable for rough machining (large cutting amount). Tool material has poor toughness and high hardness: more suitable for finishing (small cutting amount processing) ).