Stop using defective knives! Unveiling the secrets to making knives sharper and more durable.Medical devices, due to their unique usage scenarios, are one of the product categories that require the most attention to surface abrasive flow polishing. In order to further demonstrate the performance of 3D printed tungsten anti scattering filter grids in equipment, higher polishing requirements have also been put forward for deburring inside the grid. Especially for inner surface areas like th···