Guhring Forms a New Threading Line

Regarded as an industry benchmark for its extensive hole-making and threading product lines, Guhring used the recent EMO exhibition in Hannover to further enhance both its reputation and product portfolio. The arrival of the next generation of PIONEX thread formers incorporate a new design that requires 30% less torque than previous product lines.

The R&D engineers at Guhring have optimised the groove, the polygon shape and the surface preparation of its threading series and the result is the extraordinary new PIONEX tapping line. A revolutionary geometric change in the tunnels of the thread former optimises the contact between the tool and component surface and drastically reduces the cutting forces with an extremely smooth cutting action.

This enhanced design reduces the cutting temperature as well as the torque

and the axial forces by up to 30%. The result for the end user is a massive improvement in tool life, improved reliability and consistency as well as improved thread quality and precision.

The PIONEX taps are manufactured from a powder metallurgical steel compound that has an extremely high wear resistance whilst a special TiCN surface treatment provides durability. The combination of high wear resistance and durability is complemented by a new Guhring polishing technique that makes the surface of the thread formers smoother and more polished than ever before. The result of these enhancements further prolong tool life and enhance surface quality.

The new developments with the PIONEX geometry are noted in the groove depth and width that are both increased to transport more lubrication to the focal area of the thread former. Another key feature of the new PIONEX is the innovative shape of the polygon. By re-aligning the geometry of the decisive operating radius that is the focal contact point between the tool and the workpiece, the torque requirement and the stress on the tool is significantly reduced.

The new PIONEX Series from Guhring is available in all major thread types and this includes metric, metric fine, UNC, UNF and pipe thread. In addition, the PIONEX covers diameter tolerances of 6HX 6GX, the form C and form E. To match the extensive diameters and thread forms available, Guhring has also made the PIONEX available with through coolant with the option of axial and radial coolant channels.