Research on abrasive pool machining method based on gas–solid two-phase flow

For complex curved difficult-to-machine parts, a new method based on pneumatic suspension abrasive pool bright finishing processing is proposed, using the mixing of abrasive, workpiece surface, and fluidized to produce relative motion velocity, so that solid particles surface microscopic two-body wear achieve effect precision machining. The experimental test material widely used Q235 steel plate. parameters include shape (round tube, square cylindrical), particle size (24, 80, 120 mesh count), gas–solid two-phase flow pattern (dispersion fluidization state, turbulent spurting state), (sphere, irregular), spindle speed (600, 900, 1200 rpm). An orthogonal was designed according parameters, degree influence each parameter cell evaluated by roughness together with scanning electron microscope (SEM) micrograph optimal combination judged extreme difference as well factor trend diagram. results show under present conditions, (Ra) can reach minimum value 0.4 μm. feasibility demonstrated from an point view, advantages are explored.