1, slow-walking wire cutting route reasonable arrangement
This guidance method tries to avoid destroying the original internal stress balance of the workpiece material, preventing the workpiece from being caused by the function of fixture in the cutting process, resulting in the unreasonable arrangement of the cutting route, and avoiding the decline of the quality of the cutting surface.
2, processing workpiece fixed
After the cutting of the processing workpiece, the connection strength with the raw material will be reduced, then care should be taken to avoid because the impact of the processing fluid makes the processing workpiece skew. Once the skew occurs, it will lead to a change in the cutting gap, light will affect the surface quality of the workpiece, heavy will make the workpiece cut and scrap, so it is important to fix the processed workpiece.
3, the implementation of a small number of times in the process of the principle of a small number of times
In the processing process, the processing volume is generally determined by the machine’s processing parameters, according to the previous processing experience, in addition to the first processing, processing volume is generally reduced from dozens of microns to several microns, especially the last time, the processing volume should be reduced, the more times the processing of the surface quality of the workpiece the better. Because reducing the deformation of the material during wire cutting processing can improve the surface quality of the workpiece, it is done in a small, multiple-cutting manner.
In roughing or semi-finishing, a certain amount of margin may be left in order to compensate for the processing margin required during the last finishing of the material due to the destruction of the original stress balance.
4, correct selection of cutting parameters
For different roughing, finishing, its cutting parameters should have a certain adjustment, including: silk speed, silk tension and jet pressure and so on. In order to ensure that the processed workpiece has higher precision and surface quality, the wire speed and wire tension of the wire cutter will be properly improved. Although some machine equipment has certain cutting conditions supporting parameters, but due to the material of the workpiece, the processing accuracy required and other factors, the operator is required to adjust the parameters according to the actual.
5, the use of distance-tight processing
In order to achieve high precision and high surface quality, in the actual production can be used in tight processing, so that the upper nozzle and the workpiece as close as possible. This avoids the impact of the surface quality of the workpiece from the nozzle and the workpiece.