Patent · US Expired

Method and device for removing dents from sheet metal parts

US6684677B1 · kind B1 · utility

7Cited by

6References

15Claims

0Family size

Assignee

Advanced Photonics Technologies AG · DE

Inventors

Kai K. O. Bär · Bad Aibling, DE
Rainer Gaus · Holzkirchen, DE
Frank Weckenmann · Pfaffenhofen an der Ilm, DE

Key dates

Filing date	Jul 15, 2002
Grant date	Feb 3, 2004
Priority date	—
Expiry date	Jul 25, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S72/705
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

Method of removing dents from sheet-metal parts, in particular from lacquered parts of an automobile body, wherein the metal part (3) in the region of a dent (B) is warmed locally in a substantially non-contact manner, in such a way that a mechanical tension gradient produced by the local warming causes the dent to spring back so as to restore the original shape of the metal part.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.