Fringe Projection Profilometry in Production Metrology

A Multi-Scale Comparison in Sheet-Bulk Metal Forming

authored by: Lennart Hinz, Sebastian Metzner, Philipp Müller, Robert Schulte, Hans Bernward Besserer, Steffen Wackenrohr, Christopher Sauer, Markus Kästner, Tino Hausotte, Sven Hübner, Florian Nürnberger, Benjamin Schleich, Bernd Arno Behrens, Sandro Wartzack, Marion Merklein, Eduard Reithmeier
Abstract: Fringe projection profilometry in combination with other optical measuring technologies has established itself over the last decades as an essential complement to conventional, tactile measuring devices. The non-contact, holistic reconstruction of complex geometries within fractions of a second in conjunction with the lightweight and transportable sensor design open up many fields of application in production metrology. Furthermore, triangulation-based measuring principles feature good scalability, which has led to 3D scanners for various scale ranges. Innovative and modern production processes, such as sheet-bulk metal forming, thus, utilize fringe projection profilometry in many respects to monitor the process, quantify possible wear and improve production technology. Therefore, it is essential to identify the appropriate 3D scanner for each application and to properly evaluate the acquired data. Through precise knowledge of the measurement volume and the relative uncertainty with respect to the specimen and scanner position, adapted measurement strategies and integrated production concepts can be realized. Although there are extensive industrial standards and guidelines for the quantification of sensor performance, evaluation and tolerancing is mainly global and can, therefore, neither provide assistance in the correct, application-specific positioning and alignment of the sensor nor reflect the local characteristics within the measuring volume. Therefore, this article compares fringe projection systems across various scale ranges by positioning and scanning a calibrated sphere in a high resolution grid.
Organisation(s): Institute of Measurement and Control Engineering
Institute of Metal Forming and Metal Forming Machines
Institute of Materials Science
External Organisation(s): Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU Erlangen-Nürnberg)
Type: Article
Journal: Sensors
Volume: 21
No. of pages: 31
ISSN: 1424-8220
Publication date: 30.03.2021
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Analytical Chemistry, Biochemistry, Atomic and Molecular Physics, and Optics, Instrumentation, Electrical and Electronic Engineering
Electronic version(s): https://doi.org/10.3390/s21072389 (Access: Open)
: Details in the research portal "Research@Leibniz University"

BibTeX

@article{f941d14e04674c9ca80e7e00135b5f95,
title = "Fringe Projection Profilometry in Production Metrology: A Multi-Scale Comparison in Sheet-Bulk Metal Forming",
abstract = "Fringe projection profilometry in combination with other optical measuring technologies has established itself over the last decades as an essential complement to conventional, tactile measuring devices. The non-contact, holistic reconstruction of complex geometries within fractions of a second in conjunction with the lightweight and transportable sensor design open up many fields of application in production metrology. Furthermore, triangulation-based measuring principles feature good scalability, which has led to 3D scanners for various scale ranges. Innovative and modern production processes, such as sheet-bulk metal forming, thus, utilize fringe projection profilometry in many respects to monitor the process, quantify possible wear and improve production technology. Therefore, it is essential to identify the appropriate 3D scanner for each application and to properly evaluate the acquired data. Through precise knowledge of the measurement volume and the relative uncertainty with respect to the specimen and scanner position, adapted measurement strategies and integrated production concepts can be realized. Although there are extensive industrial standards and guidelines for the quantification of sensor performance, evaluation and tolerancing is mainly global and can, therefore, neither provide assistance in the correct, application-specific positioning and alignment of the sensor nor reflect the local characteristics within the measuring volume. Therefore, this article compares fringe projection systems across various scale ranges by positioning and scanning a calibrated sphere in a high resolution grid.",
keywords = "Coordinate metrology, Fringe projection, Production metrology, Sheet-bulk metal forming",
author = "Lennart Hinz and Sebastian Metzner and Philipp M{\"u}ller and Robert Schulte and Besserer, {Hans Bernward} and Steffen Wackenrohr and Christopher Sauer and Markus K{\"a}stner and Tino Hausotte and Sven H{\"u}bner and Florian N{\"u}rnberger and Benjamin Schleich and Behrens, {Bernd Arno} and Sandro Wartzack and Marion Merklein and Eduard Reithmeier",
note = "Funding Information: Funding: This study was supported by the German Research Foundation (DFG) within the scope of the Transregional Collaborative Research Center (TCRC73) Manufacturing of complex functional compo- Funding Information: nents with variants by using a new sheet metal forming process—Sheet Bulk Metal Forming under grant number 68237143. The following subprojects were involved in this manuscript: A01—Process Combination for Manufacturing Teethed, Thin-walled Functional Components out of Tailored Blanks; A06— Strategies for Function-oriented Optical Inspection of Formed Precision Components; A07—Improvement of Combined Cutting and Deep Drawing Processes by Means of Overlaying Dynamic Process Forces; B01— Simultaneous Development of a Self-learning Engineering Assistance System; B06—Endoscopic Geometry Inspection by Modular Fibre-optic Sensors; C06—Fatigue Behavior of Sheet-Bulk Metal Formed Workpieces; T08—Fatigue Life Compliant Process Design for the Manufacturing of Cold Die Rolled Components.",
year = "2021",
month = mar,
day = "30",
doi = "10.3390/s21072389",
language = "English",
volume = "21",
journal = "Sensors",
issn = "1424-8220",
publisher = "Multidisciplinary Digital Publishing Institute",
number = "7",
}