Method for scroll-free machining rotationally symmetrical surfaces

US6952987B2 · kind B2 · utility

Assignee

• Boehringer Werkzeugmaschinen GmbH · DE

Inventors

• Leo Schreiber · Schwäbisch Gmünd, DE
• Klaus Trott · Mellrichstadt, DE

Key dates

• Filing date: Dec 18, 2000
• Grant date: Oct 11, 2005
• Expiry date: Jan 9, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T82/16016
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A process for cutting machining of rotating rotationally symmetrical workpieces with a defined cutting edge, wherein the resulting rotationally symmetrical surface has either no twist or a twist which is only insignificant in terms of transport effect and abrasive action and/or when machining the hardened workpiece surfaces a particularly high material removal rate can be achieved, wherein a cutting edge which is askew with respect to the axis of rotation of the workpiece is guided in contacting relationship along the rotating workpiece in a linear feed movement transversely with respect to the axis of rotation, wherein the machining parameters, in particular the broaching feed and the inclined positioning of the cutting edge are so selected that the twist occurring at the machined surface becomes a minimum in respect of twist pitch and/or twist depth and in particular the twist depth becomes a minimum.