Interlocking, or form fitting cutting bit or chip

US5658100A · kind A · utility

Assignee

• WALTER AG · DE

Inventors

• Siegfried Deiss · Gomaringen, DE
• Siegfried Bohnet · Mössingen, DE
• Hans Peter Durr · Mössingen, DE
• Thomas J. Schneider · Michendorf, DE

Key dates

• Filing date: Aug 16, 1995
• Grant date: Aug 19, 1997
• Expiry date: Aug 16, 2015

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T407/2276
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A cutting bit formed as a round plate for a material removal tool has a base body, which is defined by a bottom face, a top opposite it and spaced apart from it, and a side face between them. The side face, with a chip face located on the top, defines a circular cutting edge. For securing the bit, a central opening which can receive a securing screw, for instance, is provided. To secure the cutting bit in a tool body in a manner fixed against relative rotation, a plurality of depressions, for instance, are provided on the top of the cutting bit and can be engaged by a clamping claw supported on the tool body. Circumferential forces engaging the cutting bit are diverted by way of these depressions, thus preventing torsion or twisting of the cutting bit.