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Temperature control...
Temperature control of robotic friction stir welding using the thermoelectric effect
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- De Backer, Jeroen, 1987- (author)
- Högskolan Väst,Avd för automation och datateknik,PTW
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- Bolmsjö, Gunnar, 1955- (author)
- Högskolan Väst,Avd för automation och datateknik,PTW
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- Christiansson, Anna-Karin, 1947- (author)
- Högskolan Väst,Avd för automation och datateknik,PTW
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(creator_code:org_t)
- 2013-09-14
- 2014
- English.
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In: The International Journal of Advanced Manufacturing Technology. - : Springer. - 0268-3768 .- 1433-3015. ; 70:1-4, s. 375-383
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Abstract
Subject headings
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- Friction stir welding (FSW) of non-linear joints receives an increasing interest from several industrial sectors like automotive, urban transport and aerospace. A force-controlled robot is particularly suitable for welding complex geometries in lightweight alloys. However, complex geometries including three-dimensional joints, non-constant thicknesses and heat sinks such as clamps cause varying heat dissipation in the welded product. This will lead to changes in the process temperature and hence an unstable FSW process with varying mechanical properties. Furthermore, overheating can lead to a meltdown, causing the tool to sink down into the workpiece. This paper describes a temperature controller that modifies the spindle speed to maintain a constant welding temperature. A newly developed temperature measurement method is used which is able to measure the average tool temperature without the need for thermocouples inside the tool. The method is used to control both the plunging and welding operation. The developments presented here are applied to a robotic FSW system and can be directly implemented in a production setting.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Robotteknik och automation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Robotics (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
- Friction stir welding
- FSW
- Temperature control
- Force control
- Robotics
- Process automation
- WIL
- Work-integrated learning
- AIL
- Manufacturing and materials engineering
- Produktions- och materialteknik
- Arbetsintegrerat lärande
- Work Integrated Learning
Publication and Content Type
- ref (subject category)
- art (subject category)
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