APPLICATION OF TWO ADVANCED VISION METHODS BASED ON STRUCTURAL AND SURFACE ANALYSES TO DETECT DEFECTS IN THE ERICHSEN CUPPING TEST

被引：1

作者：

Jasinski, C. ^{[1
]}

Swillo, S. ^{[1
]}

Kocanda, A. ^{[2
]}

机构：

[1] Warsaw Univ Technol, Dept Met Forming & Foundry, 85 Narbutta Str, PL-02524 Warsaw, Poland

[2] Kielce Tech Univ, Fac Management & Comp Modelling, 7 Tysiaclecia Panstwa Polskiego Av, PL-25314 Kielce, Poland

来源：

ARCHIVES OF METALLURGY AND MATERIALS | 2019年 / 64卷 / 03期

关键词：

defect detection; Erichsen cupping test; laser speckle; vision system;

D O I：

10.24425/amm.2019.129493

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Due to the wide range of various sheet metal grades and the need to verify the material properties, there are numerous methods to determine the material formability. One of them, that allows quick determination of sheet metal formability, is the Erichsen cupping test described in the ISO 20482: 2003 standard. In the presented work, the results of formability assessment for DC04 deep drawing sheet metal were obtained by means of the traditionally carried out Erichsen cupping test and compared with the results obtained by using two advanced methods based on vision analysis. Application of these methods allows extending the traditional scope of analysis during Erichsen cupping test by determination of the necking and strain localization before fracture. The proposed methods were compared in order to dedicate appropriate solution for the industrial application and laboratory tests respectively, where the simplicity and reliability are the mean aspects need to be considered when applied to the Erichsen cupping test.

引用

页码：1041 / 1049

页数：9