In the middle of the wire cutting, the tooling function is added to the wire. The Knife is also the multi-knife cutting that we often say. Generally, the first knife is used for cutting, and the next few tools are used to repair the smoothness. Silk can achieve a higher finish.
The wire used for cutting in the middle wire is used repeatedly. When using the trimming function, as the cutting area increases, the wire drawing and wire loss will become thinner and finer, which will eventually affect the accuracy of the work and the subsequent discharge cutting effect.
In order to achieve high precision, the actual diameter of the molybdenum wire needs to be measured before starting the cutting. After the new molybdenum wire is cut after the guide wire is cut, it is recommended to tighten the molybdenum wire. If the molybdenum wire has been used repeatedly for a long period of time, it is necessary to measure the diameter and roundness of the molybdenum wire. When the difference is too large, a new electrode wire must be replaced.
Note the following points when using multiple cuts:
(1) When the molybdenum wire is vacant, check whether the molybdenum wire is shaken.
(2) Whether there is a trace of cutting on the surface of the conductive block, and whether the molybdenum wire is trapped in the conductive block.
(3) Whether the working fluid flow rate and color are normal.
(4) Before processing, the process needs to be simulated. Determine if the cutting program generated by the system is true.
(5) According to the characteristics of the material, the remaining working allowance is as long as possible to reduce the influence of material deformation.
(6) Several problems with the working surface after cutting:
1 The surface of the wire marks may be caused by the jitter of the wire or the deformation of the material and the unreasonable setting of the offset.
2 The working surface has serious black spots at both ends and the problem of working fluid. It is recommended to try BM-4 water baseline cutting solution.
3 After cutting the workpiece, please wash it with oxalic acid in time, then rinse off the oxalic acid residue with water. Dry the water stains with a clean white cloth and finally apply anti-rust oil.
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Label: Wire cutting machine Note
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