A magnetic field strengthening method based on multi-magnetic pole coupling is proposed to address the problems of weak magnetic field strength and low grinding efficiency in traditional magnetic particle grinding technology for processing the inner surface of aircraft engine bent pipes. On the basis of the traditional 90(degrees) arrangement of magnetic poles with different names, an auxiliary magnetic pole is introduced between the two main magnetic poles, and a slotted spherical auxiliary magnetic pole is added inside the tube to construct a multi-pole coupled magnetic field strengthening s...
