NSH HIGHLIGHTS THE USES AND APPLICATIONS OF POLYGON TURNING

Polygon turning is an efficient turning process for the production of polygon shapes, shaft polygons and gripper grooves.

• it is based on a turning process and therefore has a low machining time,
• the cutting edge is always engaged on the polygonal contour,
• it achieves precise contours and high surface qualities,
• it can produce polygonal contours inside hollow shafts as well as on the outside,
• it can be applied to hardened and unhardened components,
• the process can be used to produce low-notch profiles, and form elements such as notch radii can be reproduced in a targeted and contour-true manner,
• WNV has an increased torque transmission capability due to the superimposed form fit.

Special Application of Polygonal Turning

Areas of application and use
The special application of polygon turning is characterized by the setting of a speed transmission ratio between the tool and the workpiece, with both rotating in such a way that counter-rotation is generated at the point of cutting engagement.




Added value of the process

• Productivity through the use of special tools (short production time with high chip volume)
• Polygonal hobbing for the production of shank polygons and gripper grooves and not for the production of wrench flats, since a contour (V-shape as gripper groove, taper with an undercut on the shank) is still machined here
• Polygonal hammering for the production of e.g. plug-in splines, polygons for the superimposition of force and form fit (seat for sheet metal packages of motor shafts)
• Special tools are adapted to contour
• Use of low-cost standard indexable inserts in the tools à tool design + process design = technology package
• Integration of polygonal hammering without additional machine expenditure