Solid carbide taps cut threads in steels

Following the development of a very tough carbide grade and new tooling geometries, solid carbide taps can be fed at high torque into steel components and offer long tool life.

At EMO 2005, Guhring presented new solid carbide taps for the efficient machining of steel.

Thanks to the development of a new carbide grade with high toughness, Guhring has created the prerequisite for an economical application of solid carbide taps in steel.

The new solid carbide taps can, thanks to the new carbide grade, also be applied under high torque without the tool breaking.

At the same time, the hardness of the high-tech tool material carbide is retained.

Subsequently, the new solid carbide taps can also show their forte with steel applications: extremely long tool life and highest efficiency.

However, the new carbide grade is naturally not solely responsible for the excellent characterisics of the new taps.

The tool geometries and the coating have also been adapted for the application range.

* Programme - Guhring's new solid carbide taps for the machining of steel are initially exclusively available for the production of threads in through holes.

There is a choice of three types for the production of ISO-metric and ISO-metric fine threads with tolerance 6 HX.

In order to achieve optimal results in the machining of steel, all solid carbide taps are type N, form B.

TiN, the coating Guhring has chosen is also recognised to provide the best results in steel machining.

The synchronisation and fine-tuning of all the tool characteristics is achieved by combining the available ex-pertise in tool production within the Guhring group.

Guhring is globally probably the only tool manufacturer that has its own carbide development and production, own research and development centre for tool geo-metries, own coating technology division for the development of coatings and coating plants as well as its own machine division for the development and production of the necessary machines and facilities for the production of innovative tools, at its disposal.

* The classic application range of solid carbide taps - until now, solid carbide taps have primarily conquered the machining of cast iron and aluminium-alloys.

Here, carbide can fully utilise its biggest strength: Its high hardness and therefore resistance when machining abrasive materials.

The lower toughness in comparison to high speed steel is of no importance with these materials because there are only low forces influencing the tool during thread production.

For applications such as the machining of steel, requiring a high torque, the inferior toughness of the solid carbide tap has so far prevented an economical tool life, tool breakage was simply the norm.

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