Do you have any special drill for aluminum alloy?
The brand of the drill can be imported by YG, Su's and so on. The domestic product can be chosen as a worker or a mine worker.
Aluminum alloy, copper, stainless steel, these materials are not high hardness, aluminum alloy, copper soft, frequent drilling process, it is easy to have cutting, there will be a lot of burrs, aluminum alloy special drill.
There are aluminum alloy bit, select M42, M35 or 6542 bit.
Twist drill grinding points need to pay attention to, first of all to ensure that the correct grinding angle. The two main cutting edge length and angle to symmetry, there is a formula: drill blade surface on the wheel. The drill shaft out of the front, left oblique angle. From the back edge grinding angle, swing up and down the tail don't tilt.If necessary, the cross edge can be repaired, and the trimming edge and the chip separation groove can be polished, and the blade should be cooled during the grinding process to avoid the edge annealing.
Aluminum alloy, copper, stainless steel, the hardness of these materials are not high, aluminum alloy, copper soft, frequent drilling process, easy to cut, and there will be a lot of burr. The best choice for some Aluminum Alloy drill bits for different materials when drilling drill main cutting edge angle will be different, the best selection of aluminum cutting angle of 120-135 degrees, the feed is not too high, due to the low, if the best friend can understand the material selection of M42, M35 or 6542, not bad bit a few drill does not move. The bit is divided into a rolling bit and a full grinding drill, and the whole grinding drill is 30% more expensive than the rolling mill, but the effect is much better than that of the rolling mill.
