Abrasive Flow Machining Specially usefull on internal passages, cavities and edges for deburring and surface finishing solutions. AFM Two-way Flow Machines The typical two-way flow AFM process uses two vertically opposed cylinders to extrude an abrasive media back and forth through or around passages formed by the workpiece and tooling. Abrasive action occurs wherever the media enters and passes through the most restrictive passages. The advantages of this system are: excellent process control can finish both ID and OD of component good control of radius generation fully automated system capabilities faster setup & quick-change tooling faster change-over of media.