How to use tungsten steel milling cutter correctly
2021-12-06
When the Tungsten Steel Milling Cutter is in the milling process, the workpiece can be fed along or relative to the direction of the tool rotation, which will affect the starting and finishing characteristics of the cutting. When the tungsten steel milling cutter performs down milling (also called co-direction milling), the feed direction of the workpiece is the same as the rotation direction of the tungsten steel milling cutter in the cutting area. The chip thickness will gradually decrease from the beginning until the end of the cut is zero during peripheral milling; during up-milling (also known as reverse milling), the feed direction of the workpiece and the milling cutter in the cutting area rotate The direction is just the opposite. The chip thickness starts to zero, and then gradually increases with the cutting process. When the tungsten steel milling cutter is in up-milling, the tungsten steel Milling Cutter Blade starts to cut from the zero chip thickness, which will generate a high cutting force, thereby pushing the tungsten steel milling cutter and the workpiece away from each other. After the tungsten steel milling cutter blade is forcibly pushed into the incision, it usually comes into contact with the hardened surface caused by the cutting blade, and at the same time produces friction and polishing effects under the action of friction and high temperature. The cutting force also makes it easier to lift the workpiece from the table. When the tungsten steel milling cutter is performing down milling, the tungsten steel milling cutter blade starts cutting from the maximum chip thickness. This can avoid the polishing effect by reducing the heat and reducing the tendency of processing to harden. The application of the maximum chip thickness is very advantageous, and the cutting force makes it easier to push the workpiece into the tungsten steel milling cutter, so that the tungsten steel milling cutter blade performs cutting action. When the tungsten steel milling cutter is milling, the chip breaks are sometimes glued or welded to the cutting edge, and will gather around the beginning of the next cutting edge. When up-milling, chip breaks are more likely to be trapped or wedged between the blade and the workpiece, which will cause the blade to break. When performing down milling, the same chip breaking will be split into two, so that the cutting edge will not be damaged. Regardless of the requirements of machine tools, fixtures and workpieces, down milling is the preferred method. Since the cutting force is easy to push the blade forward while keeping the workpiece underneath, the down milling has certain special requirements for the machining process. This requires the machine tool to deal with table feed requirements by eliminating backlash. If the tool is pushed into the workpiece, the feed rate will increase irregularly, resulting in excessive chip thickness and chipping. In this type of application, up-cut milling should be selected. In addition, if the machining allowance changes greatly, it is more advantageous to choose up-cut milling at this time. In order to clamp the workpiece correctly, a suitable fixture must be required, and the correct tool size is also required for the operation. But for vibration trends, the direction of the cutting force is more important.
