(6) The cutting direction (shun milling/up milling) should be kept constant;
(7) Avoid sudden changes in the cutting direction;
(8) Minimize the movement of the lost motion;
(9) Cutting time should be minimized.
In the process of tool path preparation of actual parts, it is difficult to fully meet the above requirements. In fact, when processing complex-shaped parts, you can only meet these requirements as much as possible, and first meet the more important requirements. Finishing also has the problem of causing tool marks in high-speed machining: due to the limitation of the shape of the part, if the cutting conditions are to be accommodated, visible knife marks will be left on the surface of the machined part, although it can be eliminated by polishing, but it is violated. Use the original meaning of high speed machining. After roughing and semi-finishing, CAM users have a variety of ways to modify the shape of the part, and the tool marks can be eliminated with subsequent finishing.
2. High-speed machining programs with good programming capabilities can be executed quickly on the machine, but it takes a long time and a lot of effort. In the field of single-piece machining of mold making, it is very common to wait for a machine to stop the machine. If this pressure is imposed on the CAM user, allowing them to generate tool paths faster, they will be forced to take shortcuts, and the programmed program will have problems. Even if the machine can continue to operate, the processing speed is greatly reduced. It is not wise to perform high-speed machining using a method of pressurizing a CAM user. For the best high-speed machining results, you must provide enough CAM capabilities to get high-quality machining programs that ensure the machine is fully loaded. To do this, you can start with the following aspects:
(1) With the CAM software with automatic high-speed machining function, the workload of the user optimization program can be reduced.
(2) Using the CAM software that can quickly calculate the path without overcutting, the batch function can leave the calculation of complex programs at night.
(3) Use a high-performance computer and update the configuration frequently to ensure that there is enough memory to improve performance.
(4) Make sure that each machine is equipped with enough CAM programmers. Train machine operators to program their machining directly in the workshop to fully utilize their machining skills.
(5) Ensure that the operator is provided with appropriate high-speed machining programming training.
3. Arranging the processing sequence In addition to the simplest parts, high-speed machining often has multiple machining steps. For the programming of high-speed machining, the most important thing is to choose the correct processing sequence. The following are some basic principles.
(1) Considering the geometry of the forming, the material that is desired to be removed should be considered at the same time.
(2) Minimize processing steps.
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