Molybdenum wire of wire cutting
In normal conditions, the diameter loss of molybdenum wire per cutting l0000mm2 is approximately 0.001~0.02mm. Therefore, molybdenum wire should be replaced in time after losing too much or the service life is expired.
The tension of new molybdenum wire should be adjusted firstly. If the molybdenum wire is too tight, it is easy to break the wire; if the molybdenum wire is too loose, then the key molybdenum wire is elongated and easily shorted back. Therefore, the tension of the molybdenum wire should be regularly adjusted to the appropriate size.
Wire mechanism of wire cutting machine
The conductive block is usually pressed or raised molybdenum wire. Because the molybdenum wire runs for a long time to contact the conductive block, the conductive block will have grooves, which will break the molybdenum wire. Therefore, the conductive block should be rotated to a certain angle periodically, or it should be replaced directly.
Molybdenum wire is guided by the guide wheel, so the precision of the guide wheel affects the operation of molybdenum wire. The bearing which supports the guide wheel influences the axial and radial runout of the guide wheel, and thus affects the stability of discharge machining of molybdenum wire.
Cutting technology parameters
The selection of technology parameters has a great influence on molybdenum wire loss, and excessive loss will accelerate the breakage. The technology parameters should be selected according to the specific parts, such as the material of the parts, the thickness of parts and the accuracy of the parts. The parameter is usually selected by the operator by experience, or by some intelligent technology. For example, the BP algorithm in the neural network is optimized to select cutting parameters.
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