With the disappearance of the tremor, spiral Angle variable endmill can achieve high material removal rate. Its company Noland said, "in some cases, by eliminating the possibility of resonance, completely cutting depth can increase 2 times, 3 times or 4 times. For example, can be in the length of 600 mm above the 4340 steel processing 2 mm deep grooves."
Although the same vertical milling cutter is suitable for the finishing, rough machining is that people generally think of the most significant and the most effective machining process, because of the rough machining process can increase the material removal rate. In many cases, you can increase the cutting depth, cutting width, and feeding. When there is no affected by the harmful vibration, you can increase the above parameters, more powerful feed cutting tools.
At this time, due to the variable endmill avoids the beats on the surface of the workpiece, so it can make the finish machining quality and the standard vertical milling cutter on a tiny feed precision milling, the effect of the same or even better. "You can often meet without finishing the surface of the workpiece to achieve satisfactory quality." Burton said of variable vertical milling cutter machining effect. "Even eventually need finish-milling, USES the variable end mill cutting quantity, will also increase the rough machining process and machining efficiency is improved."
On the contrary, if a small end users only need to feed cutting, so variable endmill often is not the best choice. Because it can't play in the process can be under the high cutting load cutting edge. Mr StLouis Benchmark carbide corporation said: "to do only little feed finishing of users, I suggest they'd better not variable endmill with can find the cheapest cutter; if only variable crusty vertical milling cutter used for machining billet, so it will not be able to play it in the processing of the advantage of reducing vibration."