In this era of fierce competition, there are many brands of mid-speed WEDM machines, and the prices vary greatly. To purchase a cost-effective mid-speed WEDM machine, you can refer to the following points:
1. Cutting accuracy: we all know it is very important, of course, the higher the accuracy, the better.
2. Cutting finish of machine: to see no line mark shall prevail, the general finish is less than 1.5um.
3. Whether there are tool line marks on the hanging table: This is very important for the mid-speed WEDM machine, which directly affects the use effect of the cutting products.
4. X, Y direction finish is consistent: Y direction is obviously worse than X direction, can not achieve the ideal effect, thus affecting the accuracy of cutting.
5. Whether the surface finish of cutting taper is consistent with that of the straight face: this has little effect on the metal mold cutting and blanking, but it is particularly important for the plastic mold!
6. Whether the wire should be tightened frequently during the operation of WEDM: This is very important for the consistency of accuracy, because the tightness of molybdenum wire is different, the size of cutting is different, and the smoothness is also very different. If cutting a pair of mold to tighten the wire several times, the precision of cutting can be imagined.
7. Whether the electrical part of the WEDM machine tool is designed separately from the machine tool: this has a great impact on the service life of the machine tool. Because the working environment of the wire cutting machine is very bad, the corrosion of the working fluid is relatively strong, and the water is easy to enter the machine tool, which makes the electrical failure rate very high and the electrical aging is easy.
