What is medium speed wire EDM machine
The medium speed wire edm is not between the low-speed Wire EDM and high speed wire EDM at the wire-running speed,but the processing quality between the LS-WEDM and HS-WEDM,We call the medium speed wire cut edm as the MS-WEDM in China.It must have the following features.
- it can realize the multiple-cutting,that machining quality of ms-wedm is much better than the hs-wedm.eg.the dimension error after three-cuttings is less than and equal to 0.006mm,the surface roughness Ra less than and equal to 0.8um.That data is close to the general slow speed wire cutting machine.our technical team has made a cutting test with the medium wire cut.
work-piece:Cr12,Thickness:40mm,cutting path:octagon(opposite distance:28mm),Angle:0.
| Test program | HS-WEDM Standard | MS-WEDM cutting for 1 time | MS-WEDM cutting for 3 times |
| Longitudinal section size error mm | 0.012 | 0.007 | 0.003 |
| Cross section size error mm | 0.015 | 0.010 | 0.006 |
| Process size error mm | 0.015 | 0.010 | 0.006 |
| Surface roughness Ra.um | ≦2.5 | ≦2.3 | ≦0.8 |
- High precision of wire edm machine body,adopt cast iron HT250/300 stored outdoors for more than 2 years,the worktable is equip with precision ball screw 4mm around and liner guide way.Most of the medium wire EDM machines adopt the closed-loop control of AC servo motor and grating ruler,that can realize pitch compensation and wire diameter compensation.
- With the development of artificial intelligence,the control system has an advanced expert database for machining the workpiece,the parameters of discharge can be selected free by the database according the kinds of work-pieces,that gets rid of the dependence on the operator’s experience.
- Medium wire EDM machine can realize multiple-axis linkage,including intrinsic X,Y,U,V axis,2 or 3 axis can be installed on the worktables,Zhikai wire cut control system can drive seven axis linkage for the large-taper machining and taper gear machining.
- Multiple cutting and wire speed adjusting are the two features for the ms-wedm,the distinction of the medium wire EDM and ls-wedm is the change of electrode wire,the molybdenum wire could change for a long time,but the brass wire could not change,so the customization of the molybdenum wire is the key for ms-wedm,the running speed of electrode wire install on the medium wire EDM can expand the adjust scope,and the speed can reduce to 1–3m/s in the finish machining,then decrease the wire shake range to improve the processing accuracy.
- The low operating cost for the medium wire EDM is large feature,that costs are just equal to the high-speed wire cut edm,and much lower than the low speed wire cut.The price of the medium wire EDM is still lower than the ls-wedm.