It often occurs some problems when the tungsten carbide screw-tap’s is tapping, involving the thread is too large. There are several factors in the followings:

1.Tungsten carbide screw-tap’s selection is incorrect;

2.Eccentric Bottom;

3.Nonuniform axial feed;

4.Tungsten carbide screw-tap’s tolerance wrong choice;

5. Cutting speed is too high.

There are the solutions in the followings:
           
1.Choosing the right conditions to be processed by the tap

2.Tapping float switch / improvement Bottom

3.Tapping float switch / improvement tools

4.Reducing the number of tungsten carbide screw-tap’s chip flutes, flute expand capacity chip space;

5.Reduce cutting speed.

 

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
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The dimensional accuracy of the tungsten carbide screw-tap’s internal thread determines the thread’s assembly and fitting accuracy. When the tungsten carbide internal thread, drill or tap normally driven by an asynchronous machine with a flexible tapping head, a flexible drive tungsten carbide tap tapping head may rotate at a rate close to the required thread feed lead. When these old machines is difficult to precisely coordinate tapping into rotary motion to give, and this synergy is a necessary condition tapped holes.

Therefore, you must use the tapping head is flexible control error range. When tapping, tapping the head of flexible wire tapping will produce radial run-out, limiting the improvement of the accuracy of the Tungsten Carbide Screw-tap’s thread. These factors lead to lower rigidity, and the processing load tap uneven.

 

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
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Tungsten carbide screw-tap’ successful application depends on the stiffness of the tool holder and control precision feed. For most of the processing methods, these processing conditions for granted. But for tungsten carbide screw-tap’s tapping, these conditions are only just become a reality.

Machine control technology continues to progress, has been able to achieve with the rotation of the spindle synchronization control the feed, which can no longer use the soft tapping head. In addition, the use of thermal loading and hydraulic tool clamping chuck can increase the rigidity of the tool, but also significantly reduce run-out than when using flexible tapping head. Concentric rotation of the tool holder within 3μm. Despite the large clamping force precision telescopic precision (TGHP) chuck performance and less on heat-mounted hydraulic tool chuck, but when applied to tungsten carbide screw-tap’s tapping is also very effective.

 

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
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Tungsten carbide screw-tap compared with most turning, milling and drilling tools are different, tungsten carbide taps’ cutting edge are relatively weak, and the overall strength is lower. Even in the workpiece material is relatively easy to cut when machining, tungsten carbide screw-tap’s cutting edge is also prone to chipping, leading to tool failure. When the low carbon steel tapping, continuous long chips may clog the chip flute taps, thus limiting the number of Tungsten Carbide Screw-tap applied even more easily than the workpiece material tapping steel (such as aluminum and iron).

Steel and other iron-group material are the most common needs of processing and assembly with the screw holes in the material, therefore, tool manufacturers are sparing no effort to develop cutting edge to prevent chipping and breakage of taps. Given carbide and high speed steel can be compared with the innate superiority, and therefore Tungsten Carbide Screw-tap has become a developmental point.

 

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn