Patent · US Expired

Peening shot curving

US5072606A · kind A · utility

9Cited by

4References

5Claims

0Family size

Assignee

Dornier GmbH · DE

Inventors

Winfried Koehler · Hagnau, DE
Klaus-Peter Hornauer · Aachen, DE
Reiner Kopp · Aachen, DE
Klaus Baldner · Aachen, DE
Frank Wuestefeld · Herzogenrath, DE

Key dates

Filing date	Dec 13, 1989
Grant date	Dec 17, 1991
Priority date	—
Expiry date	Dec 13, 2009

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/479
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A method of shaping planar parts which have an elastic and plastic range for making components which are curved two dimensionally around two axes under utilization of a high pressure peening shot beam comprises the steps of tension positioning the part to obtain through elastic deformation to obtain the desired contour; peening the surface of the part to be deformed by running a beam of shot along track lines which are essentially lines of equal strain in the parts to be made; controlling the peening shot beam energy such that more central parts receive shot at a higher energy than more peripheral parts of said part; repeating the aforementioned steps on the other side of the part; and separately peening shot treating at least some of thicker edge parts, so as to obtain plastic deformation.

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