公开(公告)号：US10081041B2

公开(公告)日：2018-09-25

申请号：US14651411

申请日：2013-11-25

Applicant: PRIMETALS TECHNOLOGIES AUSTRIA GMBH

Inventor： Rainer Burger ,  Ansgar Grüss ,  Helmut Hlobil ,  Peter Hunt ,  Robert Linsbod

IPC: G01N3/20 ,  B21B38/02 ,  G01B11/24 ,  B21C51/00 ,  G01B11/30 ,  G01B21/20 ,  G01B11/16 ,  B21B3/00

CPC classification number: B21B38/02 ,  B21B2003/001 ,  B21B2261/06 ,  B21C51/00 ,  G01B11/16 ,  G01B11/24 ,  G01B11/306 ,  G01B21/20 ,  G01N3/20

Abstract: A method and apparatus for flatness measuring and measuring of residual stresses in a metallic flat product (1): The method includes bending the flat product (1) in a bending device (3) such that a planar flat product (1) forms an arc (5) with a target bending radius r0 after bending; measuring the contour and the actual bending radii r(y), in the region of the arc (5) of the bent flat product (1) at a plurality of positions along the width direction of the flat product (1); and determining the flatness of the flat product (1) taking into account the measured contour of the bent flat product (1).