Electric spark composite machining process in magnetic field
A compound machining and EDM technology, applied in the direction of electric processing equipment, metal processing equipment, circuits, etc., can solve the problems of easy wear of electrodes, difficulty in chip removal, unstable processing, etc., and achieve easy realization, good processing effect, and production low cost effect
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Embodiment approach 1
[0010] Embodiment 1: A comparative test is carried out on a 1 mm thick stainless steel plate on a small hole machine;
[0011] Test conditions: EDM the positive pole of the workpiece, the negative pole of copper with a diameter of 2 mm, the magnetic pole gap is 20 mm, the magnetic field strength is 510 mT electromagnetic field, and the processing medium is tap water.
[0012] Test data: When EDM is performed alone, the maximum processing speed is 0.91 mm per minute, and after magnetic field EDM is combined, the maximum processing speed is 4.055 mm per minute, and the speed is increased by 4.5 times.
Embodiment approach 2
[0013] Embodiment 2: a comparative test is carried out on a stainless steel plate with a thickness of 8.6 millimeters on the small hole machine;
[0014] Test conditions: EDM the positive pole of the workpiece, the negative pole of copper with a diameter of 2 mm, the magnetic pole gap is 20 mm, the magnetic field strength is 510 mT electromagnetic field, and the processing medium is tap water.
[0015] Test data: When EDM is performed alone, the maximum processing speed is 1.6 mm per minute, and after magnetic field EDM is combined, the maximum processing speed is 7.53 mm per minute, and the speed is increased by 4.6 times.
Embodiment approach 3
[0016] Embodiment 3: A comparative test is carried out on a red copper plate with a thickness of 2 mm on the small hole machine;
[0017] Test conditions: EDM the positive pole of the workpiece, the negative pole of copper with a diameter of 2 mm, the magnetic pole gap is 20 mm, the magnetic field strength is 510 mT electromagnetic field, and the processing medium is tap water.
[0018] Test data: the maximum processing speed is 7.74 mm per minute when EDM is used alone, and the maximum processing speed after magnetic field EDM is 16.45 mm per minute, and the speed is increased by 2.1 times.
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