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© All rights reserved. Nordic Welding Engineering AB 2017© All rights reserved. Nordic Welding Engineering AB 2017
Nordic Welding Engineering ABQuality assurance of welded structures
towards industry 4.0
2017-09-01 1
Eric LindgrenMSc, IWECEO
Thomas StenbergPhD, IWECFMO
Martin EngmanMScCTO
Zuheir BarsoumProfessorCSO
© All rights reserved. Nordic Welding Engineering AB 2017© All rights reserved. Nordic Welding Engineering AB 2017
Weld quality in standards
2017-09-01 2
Volvo Group STD 181-0004
Weld toe radius
”Smooth transition”
r0%
10%
20%
30%
40%
50%
60%
Fati
gue
life
in %
of
2 m
illio
n c
ycle
s
Weld quality
VB
VC
VD
SS-EN ISO 5817
© All rights reserved. Nordic Welding Engineering AB 2017© All rights reserved. Nordic Welding Engineering AB 20172017-09-01 3
LOST, 2006-2010
WIQ, 2010-2012
LIGHTSTRUCT, 2012-2015
© All rights reserved. Nordic Welding Engineering AB 2017© All rights reserved. Nordic Welding Engineering AB 2017
Measurement system analysis of Gauges
Method shows problems with:• Repeatability
• Reproducibility
• Part-to-part variation
2017-09-01 4
Go/No Go • MS noise <9%
• MS noise <30% of tolerance width
Process optimization• MS noise <4%
• MS noise <20% of tolerance width
Reference: Z. Barsoum; J Samuelsson, Lightweight Optimised Welded Structures (LOST), 2009.
Gauge contributed with 58% of the total variation
© All rights reserved. Nordic Welding Engineering AB 2017© All rights reserved. Nordic Welding Engineering AB 2017
Numerical algorithms for weld geometry
2017-09-01 5
© All rights reserved. Nordic Welding Engineering AB 2017© All rights reserved. Nordic Welding Engineering AB 20172017-09-01 6
“new ON-line method for quality
assurance of WELDed structures”
ONWELD – VINNOVA FFI project
© All rights reserved. Nordic Welding Engineering AB 2017© All rights reserved. Nordic Welding Engineering AB 2017
2D/3D profile sensor - Measuring principle
2017-09-01 7
© All rights reserved. Nordic Welding Engineering AB 2017© All rights reserved. Nordic Welding Engineering AB 2017
Laboratory setup
2017-09-01 8
© All rights reserved. Nordic Welding Engineering AB 2017© All rights reserved. Nordic Welding Engineering AB 2017
Progress
2017-09-01 9
© All rights reserved. Nordic Welding Engineering AB 2017© All rights reserved. Nordic Welding Engineering AB 2017
Swedish Steel Prize University Challenge 2015
2017-09-01 10
© All rights reserved. Nordic Welding Engineering AB 2017© All rights reserved. Nordic Welding Engineering AB 2017
Nordic Welding Engineering ABQuality assurance of welded structures
towards industry 4.0
2017-09-01 11
Eric LindgrenMSc, IWECEO
Thomas StenbergPhD, IWECFMO
Martin EngmanMScCTO
Zuheir BarsoumProfessorCSO
© All rights reserved. Nordic Welding Engineering AB 2017© All rights reserved. Nordic Welding Engineering AB 2017
Vinn Verifiering 2016
Investigate the possibility to commercialize software
This work will be conducted together with industrial pilot customers
2017-09-01 12
© All rights reserved. Nordic Welding Engineering AB 2017© All rights reserved. Nordic Welding Engineering AB 20172017-09-01 13
© All rights reserved. Nordic Welding Engineering AB 2017© All rights reserved. Nordic Welding Engineering AB 20172017-09-01 14
Company VisionWeld quality used as Input to welding process.
Complete scanning along weldment.
Today:Received weld quality is measured at some selected positions on the final product.
Improved techniques for early quality assurance needed
U, I, etc.
On-line measuring
r, a, i, u, etc.
© All rights reserved. Nordic Welding Engineering AB 2017© All rights reserved. Nordic Welding Engineering AB 2017
Thank you for your attention
2017-09-01 15
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