3D Machining of flat material by abrasion from a high pressure water jet mixed with abrasives. Beskrivning The process Water under high pressure [1] of up to 4000 bar is focused through a nozzle [2]. Abrasive agents [3] are then supplied through the vacuum formed in the mixing chamber [4]. High pressure water jet charged with the abrasive agent then cut through the workpiece. The cutting head is positioned usually by means of a portal system in combination with additional shafts to provide tilting and rotation. The systems are designed for 3D cutting of flat plates and to some extent also for cutting curved surfaces but does not have the same slant opportunities and working range as full 3D cutting. Positioning can also be carried out by using an industrial robot if its positioning accuracy can fulfill the strived tolerances. Water mixed with debris is collected and filtered to partially reuse the abrasive agent. 3D abrasive water jet cutting of flat materials Process photos Process films Advantages and disadvantages In comparison with alternative methods Can cut in all materials Low heat Suitable for cutting brittle and/or hard materials, can cut angled cuts Slower cutting speed The cut gets narrower with depth
