People in the wire-cut molybdenum wire industry know that molybdenum wire fracture often occurs in the process of wire-cut. Then, why does wire-cut molybdenum wire always break when it is cut? In this paper, we will try to find out the reason why molybdenum wire breaks in wire cutting.

Molybdenum wire - molybdenum wire cutting

Under normal circumstances, the diameter loss of each cut molybdenum wire l0000mm2 is about 0.001 ~ 0.02mm. Therefore, after too much loss or service life expires, the molybdenum wire should be replaced in time.

First, the tension of the new molybdenum wire should be adjusted. If the molybdenum wire is too tight, it will break easily. If the molybdenum wire is too loose, the key molybdenum wire will stretch and easily short out. Therefore, the tension of molybdenum wire should be adjusted regularly to the appropriate size.

Line cutting - the line mechanism of the line cutting machine

The conductive block is usually a pressed or raised molybdenum wire. Since 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 regularly at a certain Angle, or replaced directly.

The molybdenum wire is guided by a regulating wheel, so the precision of the regulating wheel will affect the operation of the molybdenum wire. The bearing supporting the guide wheel will affect the axial and radial runout of the guide wheel, thus affecting the stability of molybdenum wire discharge machining.

Molybdenum wire - cutting technical parameters

The selection of process parameters has a great influence on the loss of molybdenum wire, too much loss will accelerate the fracture. Technical parameters should be choosed according to the specific part, such as the material of the part, the thickness of the part and the accuracy of the part. This parameter is usually chosen by the operator based on experience or some intelligent technique. 

The above is the reason why the wire cut molybdenum wire breaks when cutting. I hope it will be helpful to you.