February 20, 2017

Tungsten carbide tap is more and more widely applied in the mold industry

In the past, when the wholetungsten carbidebit was introduced hole processing, in order to reduce the load and prevent the cutting edge chipping, users have to reduce the feed per revolution (compared with high-speed steel drill). However, the hard alloy bit can be used in cutting speed faster. With cutting grades and drill design progress of hard alloy drilling, cutting edge chipping possibility is greatly reduced, so that the actual feed the whole hard alloy bit rate increase.

 

Tungsten carbidetap, conduction only by the thread, thread number and cutting edge slope to control chip load, tapping the environmental conditions difficult to further reduce effect to tap on the cutting edge of the load. However, in order to avoid tipping, improve the overall carbide drill in the design (which can obtain higher feed rate) also can be applied to solid carbide taps. These improvements include new cutter type KC7542, this brand will be devoted to the development of high strength cemented carbide taps and nano TiAlN coating for the new development of the hard alloy bit perfectly together.

Machine tool control system, tool chuck, hard alloy and tap design improvement greatly expand the scope of the workpiece material can achieve efficient tapping,which includes not only short chip materials (such as aluminum and iron),but also for the first time included long chip materials (such as carbon steel and alloy steel).

In addition,mounted by the heat in the CNC machine can realize synchronous tapping on hydraulic sleeve type TGHP or precision tool clamping when tapping, carbide taps new can be processed to 5 times faster than the speed of high-speed steel cone, which can greatly improve the production rate of tapping.

 

However, we must pay attention to in tapping on the blind hole, not all of the CNC CNC machine tool has the same ability. The synchronous tapping processing to the blind hole bottom tap and spindle must slow down and exit, reversal may occur when the tap lead error, resulting in lateral thrust tap, and cause the thread when detecting the size difference. In addition, the tap speed, reverse and re acceleration still and the workpiece are bonded together, therefore, the blind hole tapping speed should be about 40% lower than the through hole tapping recommended speed.

Posted by: hannahgwendolyn at 09:26 AM | No Comments | Add Comment
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