Device and process for thermographic examination of functional surfaces of forming tools

US6439764B1 · kind B1 · utility

Assignees

• Daimlerchrysler AG · US
• Technische Universität Darmstadt · DE

Inventors

• Gerrit Engering · Ulm, DE
• Dirk Hortig · Hattersheim, DE
• Michael Lahres · Ulm, DE

Key dates

• Filing date: Jun 16, 2000
• Grant date: Aug 27, 2002
• Expiry date: Jul 10, 2020

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B23Q17/0904
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

The thermographic examination of functional surfaces of forming tools in the forming process is important for the selection of an optimal tool material or an optimal coating material for a particular forming process and for a particular workpiece composition, and also for the optimization of process parameters of the forming process.The task of the present invention is comprised therein, to develop a device and a process, which enables the rapid and simple thermographic examination of functional surfaces of forming tools during the forming process.This task is solved by a process and a device, in which the sought after temperature distribution of the functional surfaces during the forming process are conducted, from point of origin, through a channel, in the direction of a temperature measuring device, via thermal radiation or, in certain cases, thermal conductivity.