March 08, 2018

How to reduce the thermal stress of tungsten carbide blank during welding process

Tungsten carbide blanks are very common materials for cutting tools: and for example, saw blades, lathe bits, drill bits, milling cutters and dental drilling tips are usually made of hard alloys. It can make these blades longer than most other materials, so they are popular among these carbide tools.

Tungsten carbide blank is made of a cemented carbide crown on the steel drill body. This drill adopts self-centering blade geometry, cutting force is small, on the eve of the eve of the workpiece material all can achieve excellent chip control, machining the hole of finish good, dimensional accuracy and positioning precision is very high, no longer for subsequent finishing. The drill adopts internal cooling system, which can be used in machining center, CNC lathe or other high rigidity, high speed machine tool.

Replaceable tungsten carbide blank

Replaceable carbide blank is a new generation drilling tool. It is composed of steel and can be a change in solid carbide drill body crown, compared with welding type carbide drill, its machining precision eight half of it, but because of the tooth crown can be changed,which can reduce processing costs, improve the drilling rate. This kind of drill bits can obtain the precise aperture size increment and has the self-centering function.

Production of tungsten carbide blank

The distance between tungsten carbide plate and the slot surface is 0.3~ 0.5mm for each side and 0.1~ 0.15mm for the non-compensation gasket. The compensation gasket is used to reduce the thermal stress during welding of alloy sheet. The compensation gasket can be made of low carbon steel wire mesh or copper sheet. Its width and length are equal to that of alloy plates. For tungsten carbide plates with no compensation gaskets, they shall be fixed in the required position by means of inlaying.

Application and properties of tungsten carbide blanks

1. It can be suitable for drilling with more complex materials, and can choose higher cutting speed.

2. High performance alloy blade for selected alloy bits, effectively reduce the collapse knife and maintain good wear resistance.

3. Multi-layer geometric cutting edge, improve drainage performance, and maintain small cutting resistance.

4. In addition to the usual rectangular handle, it is equipped with a variety of handles, suitable for various drilling machines and drilling machines.

Posted by: hannahgwendolyn at 09:38 AM | No Comments | Add Comment
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