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原理磨料流动加工(AFM)是由粘性磨料介质在压力下流动通过工件而去除多余材料,图1为磨料流动加工过程的简图。粘性磨料以聚合物为基体材料,掺入磨粒,按其粘度和磨粒的型式和比例进行选择,以适应零件的形状和所要求的操作——去毛刺、抛光、倒圆角。通常,像油灰似的磨料介质以运动形式挤磨工件,一般在两个方向往复流动1～100次。采用的磨料有氧化铝、碳化硅、碳化硼或金刚石等。粘性磨料的流动速度取决于其粘度、压力、通道尺寸和长度等主要参数。
Principle Abrasive Flow Machining (AFM) is the removal of excess material by a viscous abrasive medium that flows under pressure through the workpiece. Figure 1 is a simplified diagram of an abrasive flow machining process. Viscous Abrasives Polymer-based materials, incorporated into abrasive particles, are chosen based on their viscosity and the type and proportion of abrasive particles to suit the shape of the part and the desired operation - deburring, polishing, and fillet. Often, abrasive materials like putty-like extrude workpieces in the form of motion, typically 1 to 100 reciprocations in two directions. Abrasive used in alumina, silicon carbide, boron carbide or diamond. Viscous abrasive flow rate depends on its viscosity, pressure, channel size and length of the main parameters.