3D-Scanning for Weld Distortion Measuring

• Optical three dimensional scanning for weld distortion measurements have been performed for validation, inspection, general visualization and documentation of a robotized welding process. The planning, preparing and processing of the weld is done in a simulation-based concept where computer aided robotics software simulations are integrated with finite element analysis simulations with the objective to reduce global geometrical deformation during welding. The off-line programmed robot paths were used as an input for finite element calculations of temperature fields and distortion in the work piece. In order to validate the finite element model 3D-scannings have been performed before and after every single welding sequence. This paper describes a validation experiment with non-contact measurements of weld distortion and discusses limitations in optical 3D-scanning techniques used for this purpose

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Maskinteknik -- Produktionsteknik, arbetsvetenskap och ergonomi (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Mechanical Engineering -- Production Engineering, Human Work Science and Ergonomics (hsv//eng)

TEKNIK OCH TEKNOLOGIER  -- Materialteknik -- Bearbetnings-, yt- och fogningsteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Materials Engineering -- Manufacturing, Surface and Joining Technology (hsv//eng)

Keyword

computer aided manufacturing

deformation

finite element analysis

mechanical variables measurement

optical scanners

robotic welding

welds

computer aided robotics software simulations

finite element analysis simulations

global geometrical deformation reduction

offline programmed robot paths

optical 3D scanning

robotized welding

temperature fields

weld distortion measurement

3D-scanning

distortion

model validation

robotics

welding

Electrical engineering, electronics and photonics

Elektroteknik, elektronik och fotonik

Manufacturing engineering

Produktionsteknik

Mechatronics

Mekatronik

Manufacturing and materials engineering

Produktions- och materialteknik

Publication and Content Type

ref (subject category)

kon (subject category)