The Difference Between High-frequency Welding and Laser Welding of Diamond Drill Bit

At present, there are no more than high-frequency welding gear and laser welding gear on the market. From the point of view of the welding process, there are some technical differences between them.First of all, high-frequency welding segment is a physical combination of welding segment through the matrix and the blade blade through the high-frequency machine high temperature heating method.

In the whole process of high-frequency tooth welding, not only need to consume a lot of brazing sheet, but also need the aid of flux, followed by the welding speed is relatively slow.At the same time, the use of high-frequency welding segment welding segment, when drilling concrete, will be with the increase of the temperature of the knife segment, resulting in gradually loose welding parts, once the temperature of the knife segment to withstand the peak, often will appear tooth loss.

Therefore, for the drill with high-frequency welding segment, it is unable to withstand the long time, high load and intense drilling task, can not ensure that the drill can be durable.

For laser welding segment, welding segment do not need brazing sheet, but directly through the laser energy, the matrix and the tool head melt, directly make the matrix and the tool head melt into one, forming a metallurgical combination.Compared with the traditional high-frequency welding segment, the biggest advantage of laser welding segment is that the drill is not easy to lose segment, safe and reliable. At the same time, the efficiency of laser welding segment is much higher than that of high-frequency welding, without follow-up processing, to achieve efficient automatic production. It has the characteristics of narrow weld, small heat-affected zone, clean and smooth, etc. Taking a 9-tooth drill as an example, it only takes about 40 to 50 seconds to complete the welding of a single bit by using laser welding segment, and the working efficiency of welding segment becomes higher.

Of course, because of the advantages of laser welding segment, the cost of welding is still higher than that of traditional high-frequency welding segment.There is no distinction between the two common diamond bit tooth welding methods. The type of welded bit used depends entirely on the difficulty of the object being drilled.Tongling Changjiang diamond laser welding bit has been tested and produced in large quantities, with high efficiency and good quality. For customers who have difficult drilling environment and requirements on bit quality, they can rest assured to choose this kind of high-quality laser welding bit.