Application of tungsten steel milling cutter

During the milling process of tungsten steel milling cutter, the workpiece can be fed along or relative to the tool rotation direction, which will affect the starting and completion characteristics of cutting.

The direction of workpiece feed is the same as that of the tungsten steel milling cutter in the cutting area. The chip thickness will gradually decrease from the beginning until the end of the incision is zero when the peripheral milling is carried out. In reverse milling (also called reverse milling), the feed direction of the workpiece is exactly opposite to the rotation direction of the milling cutter in the cutting area. The chip thickness starts at zero and then increases with the cutting process.

When the tungsten steel milling cutter is milling backwards, the tungsten steel milling cutter blade starts cutting from zero chip thickness, which will generate high cutting force, thus pushing the tungsten steel milling cutter and the workpiece away from each other. Tungsten steel milling cutter blade, after being forced into the incision is usually and the processing caused by the cutting blade is hardened surface contact, at the same time under the action of friction and high temperature, friction and polishing effect. The cutting force also makes it easier to lift the workpiece from the table.

When the tungsten steel milling cutter is milling forward, 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 hardening trend. The maximum chip thickness is very favorable, and the cutting force is easier to push the workpiece into the tungsten steel milling cutter, so that the tungsten steel milling cutter blade can cut.

When the tungsten steel milling cutter is milling, the cuttings are sometimes glued or welded to the cutting edge and gathered around the beginning of the cutting of the next edge. During reverse milling, cuttings are more likely to be trapped or wedged between the blade and the workpiece, which will lead to blade fracture. The same chip can be split in two to avoid damaging the cutting edge.

Regardless of the machine tool, fixture and workpiece requirements, shun milling is the preferred method.

Because the cutting force is easy to push the blade forward while keeping the workpiece at the bottom, the milling process has certain special requirements. This requires the machine tool to deal with the table feeding requirements by eliminating the tooth gap. If the tool is pushed into the workpiece, the quantity of feed will increase irregularly, which will lead to excessive chip thickness and lead to blade breakage. Reverse milling should be selected in such applications. In addition, if the machining allowance changes a lot, it is more advantageous to choose reverse milling. In order to properly clamp the workpiece, the proper clamping device must be required, as well as the correct tool size for the operation. But for the vibration trend, the direction of cutting force is more important.