Note for use of multiple cnc wire cutting machine
Compared with single cut wire cutting, multiple cnc wire cutting machine first increases the function of repairing knives, which is also what we often call multi-cutting. Generally, the cut one time is used for cutting, and the next several times are used to repair the smoothness, so the smoothness that can be achieved by wire walking in use is higher.
The molybdenum wire can be reused. When using the function of trimming knife, with the increase of cutting area, electrode wire will produce wire-drawing and electrode wire loss, which will become thinner and thinner, and finally affect the working precision and the effect of several discharge cutting.
For high accuracy, the actual diameter of the molybdenum wire needs to be measured before cutting. The new molybdenum wire should be tightened after cutting the guide wire and before cutting the workpiece formally. If the molybdenum wire has been used repeatedly for a long time, the diameter and roundness of the molybdenum wire need to be measured. If the difference is too large, a new electrode wire must be replaced.
Multiple cutting also pay attention to the following points:
(1) when the molybdenum wire is empty, check whether the molybdenum wire shakes.
(2) whether there are cutting marks on the surface of the conductive block and whether the molybdenum wire is trapped in the conductive block.
(3) whether the working fluid flow and color are normal.
(4) before processing, the process needs to be simulated. Determine whether the cutting program generated by the system is true.
(5) according to the characteristics of the material, the final cutting work allowance should be as long as possible to reduce the impact of the material deformation.
(6) several problems on the working surface after cutting:
(1) the surface line mark, it may be caused by the dithering of the electrode wire or material deformation and offset setting unreasonable.
The working surface at both ends of the black spot is serious, the problem of working fluid. It is recommended to try using bm-4 water-based wire-cutting fluid.
(3) multiple cnc wire cutting cut the workpiece, please timely aloxalic acid cleaning, and then rinse off the oxalic acid residue. Dry the water stain with a clean white cloth, then coat with anti-rust oil.
