Experimental study on effect of short arc turning on recast layer of honeycomb ring

The honeycomb sealing structure is the advanced and efficient sealing structure of contemporary aviation engines. It is difficult to meet the processing quality requirements of traditional processing, and the general electricity processing efficiency is low. Therefore, the short arc car is selected. Experiments for honeycomb seals with GH3536. In order to study the impact of different parameters on the post -processing layer of the processing layer, set the single factor test, and use the thickness and micro -appearance of the recasting layer as the test index, analyze the current and voltage waveform diagram, the surface scanning electron microscopy, cross -sectional gold phase diagram, and the cross -section gold phase diagram, and Surface can spectrum. The results prove that the thickness of the reconstruction layer increased with the voltage and the rate of feed, and the speed of the workpiece and electrode decreased, and the surface quality has the same trend. The casting layer is smaller and the surface quality is better. Therefore, properly reduce voltage and feed speed, improve workpiece and electrode speed, and use wide groove baffle electrodes, which can reduce the phenomenon of micro -cracks, erosion pit, folds, and melting particles, layer thickness.