Publication detail

Multi-view camera system for measurement of heavy forgings

HURNÍK, J. ZATOČILOVÁ, A. KONEČNÁ, T. ŠTARHA, P. KOUTNÝ, D.

Original Title

Multi-view camera system for measurement of heavy forgings

Type

journal article in Web of Science

Language

English

Original Abstract

Open-die forging is used to manufacture heavy durable parts such as shafts. In-process measurements are required for shape correction. The passive 3D measurement method is based on forging silhouettes in images and has demonstrated its advantages in this application. However, when using two cameras, only four tangents are available to determine the cross-section. In this paper, we propose a novel multi-camera multi-observation method for forging measurements; it increases the number of tangent lines used to determine the forging cross-section. The results suggest a decrease in measurement error proportional to the square root of the observation number. The six-observation precision is +/- 0.5 mm in a measurement volume of 6 x 6 x 2 m for axis straightness and diameter measurements (95% confidence interval). However, many outliers remain in case of diameter measurement. In addition, the forging circularity can be measured. The proposed system shows good agreement with the laser scanning measurement method. Overall, the system has considerable potential for forging manufacturing applications.

Keywords

Axis; Diameter; Edge detection; Forging; Measurement; Laser scanner; Silhouettes

Authors

HURNÍK, J.; ZATOČILOVÁ, A.; KONEČNÁ, T.; ŠTARHA, P.; KOUTNÝ, D.

Released

27. 7. 2022

Publisher

SPRINGER LONDON LTD

Location

LONDON

ISBN

0268-3768

Periodical

INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY

Year of study

121

Number

11-12

State

United Kingdom of Great Britain and Northern Ireland

Pages from

7295

Pages to

7310

Pages count

16

URL

https://link.springer.com/article/10.1007/s00170-022-09809-6

BibTex

@article{BUT178695,
  author="Jakub {Hurník} and Aneta {Zatočilová} and Tereza {Konečná} and Pavel {Štarha} and Daniel {Koutný}",
  title="Multi-view camera system for measurement of heavy forgings",
  journal="INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY",
  year="2022",
  volume="121",
  number="11-12",
  pages="7295--7310",
  doi="10.1007/s00170-022-09809-6",
  issn="0268-3768",
  url="https://link.springer.com/article/10.1007/s00170-022-09809-6"
}