Search for dissertations about: "Laser beam welding"
Showing result 6 - 10 of 35 swedish dissertations containing the words Laser beam welding.
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6. Laser welding and cladding : the effects of defects on fatigue behaviour
Abstract : The thesis focuses on weld defects in laser processed materials (for laser welding, laser hybrid arc welding and laser cladding) and their effect on the fatigue life of components. Component properties were studied with particular emphasis on the macro and micro surface geometry, weld defects and clad defects. READ MORE
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7. Optical detection of joint position in zero gap laser beam welding
Abstract : This thesis presents an experimental study on how to track zero gaps between metal sheets to be joined by laser beam butt welding. Automated laser beam welding is gaining interest due to its ability to produce narrow and deep welds giving limited heat input and therefore less distortions compared to other processes, such as arc-welding. READ MORE
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8. Signal processing and high speed imaging as monitoring tools for pulsed laser welding
Abstract : In Laser Materials Processing there has always been a need for suitable methods to supervise and monitor the processes on line, to ensure correct production quality or to trigger alarms when failures are detected. Numerous investigations have been made in this field, including experimental and theoretical work. READ MORE
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9. Heat conduction effects during laser welding
Abstract : Since the invention of the laser in 1960, its use has been growing steadily. New laser sources with high beam power and high beam quality provide potential for further growth. READ MORE
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10. Welding of Ti-6Al-4V: Influence of welding process and alloy composition on microstructure and properties
Abstract : Titanium alloys are widely used for components in the fan and compressor sections of aeroengines mainly because of their superior strength-to-weight ratio. Large static compressor components can be manufactured by welding together smaller subcomponents, which has potential to provide benefits such as higher buy-to-fly ratio and improved performance of the components. READ MORE