The premise of precision edm
The precision of machining cannot exceed the precision of machine tool.For the edm of high value-added die parts, the general discharge machine is difficult to complete, the choice of high precision edm machine is the premise.
The precision edm machine should meet the requirement of high precision in mechanical property of structure, geometrical precision of spindle and table.
The full closed loop control method of high precision grating ruler can obtain high accuracy of automatic positioning.
The performance of the machine tool's pulse power supply determines the performance of the discharge machining. If the size is precise and the profile is clear, the discharge gap is small. Under the condition of small gap machining, stable machining can be achieved.
The high speed knife lifting technique can effectively discharge waste and tar from the machine and obtain stable discharge clearance.
High performance servo control system can minimize machining depth error to achieve high precision machining.
The rich shaking mode in finishing is used to accurately compensate the size of profile.Such as clear Angle translation, spherical translation is very important functions.
In finishing, the waveform with slope control should be used to achieve low electrode loss and high grade surface can be processed.
This kind of high-precision edm machine is highly automatic and intelligent, which greatly reduces the dependence of processing quality on human.