Taps Cutting & Applications

1. The semi-enclosed, multi-flute molding cutting

Cemented carbide taps tapping the circumferential direction of the more cutting edge work together, cutting the cemented carbide taps edge back or squeeze taps ridge cut (squeeze) into the bottom hole wall, only in the groove or ridge between the back and screw holes wall leaving a semi-closed cutting space, so that the chip removal and cooling are more difficult. straight flutes cemented carbide taps trench clear accommodate chip significance, to solve cemented carbide taps strength and to accommodate the contradictions of chip space, cemented carbide taps optimize the design of and thus gradually innovative spiral groove, spiral point cemented carbide taps varieties. Further, cemented carbide taps the tooth profile and the pitch and the processing thread is the same, the individual cutting edge drill-cutting to form the final thread. Therefore, the cemented carbide taps are shaped cutting tools, and its threaded accuracy will directly affect the accuracy of the screw hole.

2.Thin layer cutting

The cemented carbide taps of the multiple blade forming the cutting structure, so that its respective cutting teeth of the cutting layer of small thickness, only a dozen of microns to several hundred microns, belonging to the thin layer cut areas. Cemented carbide taps other tool, the cutting edges are inevitably there is a tiny arc cutting thickness and edge radius close weakened, increased compression, resulting in the cutting force and cutting heat than high. Especially after cemented carbide taps with blunt or chipping defects, cutting force will increase sharply, the rapid loss of use features. Cemented carbide taps production, on the one hand the need to improve the grinding quality, reducing the corner radius; the other hand, we must strictly control the heat treatment of grain size of the material, to improve the toughness and strength, a tendency to reduce chipping.

3. Low-speed, large amount of feed cutting

To avoid the damage of cemented carbide taps broken and excessive cutting heat caused by increased dramatically clogging trench cutting edge of common cemented carbide taps, cemented carbide taps tapping generally use lower cutting speeds. The machine tapping generally use the cutting speed of a few meters / sec to 10 meters / sec, significantly lower than the thread milling and turning; while the manual tapping the cutting speed is lower. Further, taps axial feed mainly rely on its threaded spin into the cutting is performed automatically in accordance with the lead (pitch), and may not provide the separate axial feed drive. Even in the processing of high-precision machining center screw holes using synchronous axial feed drive federates still a lead (pitch) / rev, much higher than the feed rate of the thread milling.

4.High-speed cutting

With the advancement of science and technology, the development of cutting technology, the need for efficient processing, application of superhard materials, carbide materials and coating technologies, design and manufacture of taps, CNC machining centers and equipment, cemented carbide taps tapping high cutting speeds, tapping generally up to tens of meters / s cutting speed, greatly improves the processing efficiency.

5. Simple operation, widely used

Since cemented carbide taps are forming toosl, when used only to provide the rotation driving and moderate axial force, and therefore easy to operate. Another cemented carbide taps more varieties, both manual and machine processing screw holes; the existing cutting cemented carbide taps, there are broaching the taps and squeeze taps. Therefore can be machined the various workpieces screw holes, a very wide range of applications.
To sum up, cemented carbide taps as special tools, and working conditions are very harsh; Taps necessary to ensure that the large diameter of the screw holes of the workpiece to be machined in diameter, pitch, tooth type angle and threaded surface roughness to achieve the specified accuracy class required to meet the higher productivity. Cemented carbide taps tapping is often the last step of the workpieces, especially in large parts on the job, in order to guarantee the quality accident cemented carbide taps not break prevent workpiece scrapped incident, cemented carbide taps must have high security coefficient and higher sex. With the continuous application of new materials, processing materials are becoming more toward the difficult machining direction of development, these increasing demands on tap design and manufacture. To adapt to these requirements, there have been a variety of different performance cemented carbide taps.

Chinatungsten Online can provide various sizes and grades of cemented carbide cutting tools, non-standard products are also customized according to customer requirements. Welcome to consult and purchase sales@chinatungsten.com, sales@xiamentungsten.com .