Search for dissertations about: "laser beam effects"
Showing result 1 - 5 of 51 swedish dissertations containing the words laser beam effects.
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1. Laser welding and laser heat treatment of high strength steels
Abstract : Laser materials processing, including thermal treatment and laser welding has been undergoing continuous growth in the manufacturing industry for decades. A laser beam offers high precision and energy transfer, capable of various processing. READ MORE
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2. 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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3. Laser Spectroscopic Techniques for Combustion Diagnostics Directed Towards Industrial Applications
Abstract : In the work presented in the thesis, different laser spectroscopic techniques were utilized for measurement of species concentrations, as well as for surface thermometry. Experiments were conducted in various combustion environments, ranging from laboratory burners to truck-sized internal combustion (IC) engines, gas turbine combustors and a full-size aircraft turbofan engine. READ MORE
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4. Laser Diagnostic Techniques with Ultra-High Repetition Rate for Studies in Combustion Environments
Abstract : When conducting laser based diagnostics in combustion environments it is often desirable to obtain temporally resolved information. This can be due to several factors such as combustion taking place in a turbulent flow field, flame propagation from a spark plug in an initially quiescent combustible mixture, or rapid, multi-point fuel consumption in a homogeneous charge as a result of compression ignition in an engine cycle. READ MORE
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5. 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