Method for the inductive surface hardening of workpieces

US5796078A · kind A · utility

Assignee

• MASCHINENFABRIK ALFING KESSLER GMBH

Inventors

• Adalbert Ottenwaelder · Stimpfach, DE
• Manfred Machnig · Aalen, DE
• Dieter Kullick · Trochtelfingen, DE
• Rudolf Fuchs · Bad Liebenzell, DE

Key dates

• Filing date: Feb 28, 1997
• Grant date: Aug 18, 1998
• Expiry date: Feb 28, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P10/25
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

In a method for the inductive surface hardening of workpieces with any desired external geometries, especially camshafts for internal combustion engines, an inductor (15) is provided which at least partially surrounds the workpiece (2 or 4). The workpiece (2 or 4) executes a uniform rolling motion, and, given a constant coupling distance (X), the internal contour (18) of the inductor (15) represents a line parallel to the rolling contour (16) of the workpiece (2 or 4).