The invention discloses a
solid-liquid two-phase flow magnetic shear thickening
polishing device and method based on controllable multi-
physical field coupling, and belongs to the field of
magnetic field auxiliary
polishing. In order to solve the problems of low
polishing efficiency and poor polishing quality uniformity caused by single
physical field and poor
controllability in the traditional
magnetic field assisted polishing technology, the invention provides a
coupling effect of a controllable
magnetic field and a flow field to realize high-efficiency and high-quality precise polishing. The polishing device is composed of a
screw pump, a permanent
magnet, a magnetic pole support, a circulating pipeline, an inlet
flange, a baffle, a clamp, a workpiece, a positioning block, a positioning plate, an outlet
flange and a circulating
pipe flange. Permanent magnets with different distributions and polarities are arranged in the magnetic pole support, the magnetic
field intensity and the targeting degree of a polishing area are accurately controlled, and the
screw pump conveys a polishing medium to the polishing area at a specific flow speed through rotating
extrusion of a screw. The curing degree of the polishing medium and the
control force of the
grinding material are controlled by precisely regulating and controlling the
coupling effect of the magnetic field and the flow field, and efficient and high-quality precise polishing of the workpiece is achieved.