Search for dissertations about: "VOLTAGE ON WELDING"
Showing result 1 - 5 of 7 swedish dissertations containing the words VOLTAGE ON WELDING.
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1. Automatic Quality Monitoring in GMA Welding using Signal Processing Methods
Abstract : An ongoing continuous process of automatization of the production lines is used in industry to reduce production costs. Automatization of quality control should be seen as part of a cost reduction process, as well as of quality control of the welding. READ MORE
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2. The optical properties of automatically darkening welding filters based on liquid crystal technology
Abstract : This thesis addresses the problem of the poor optical angular properties displayed by automatically darkening welding filters that are based on liquid crystal technology. It is shown that by reducing thetwist-angle present in the liquid crystal cell to below that of 90° together with employment of a novel polariser arrangement, an optical shutter design using a double-cell construction is obtained thatpossesses a reduced angular transmittance variation when in the activated phase. READ MORE
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3. Inductive measurement of narrow gaps for high precision welding of square butt joints
Abstract : A recent method in aero engine production is to fabricate components from smaller pieces, rather than machining them from large castings. This has made laser beam welding popular, offering high precision with low heat input and distortion, but also high productivity. READ MORE
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4. Phenomena in wire based multi-layer laser welding and hybrid deposition
Abstract : Several laser materials processing technologies using metal wire addition have been researched during the last decades. Especially in the field of joining, as well as in the field of Additive Manufacturing (AM), multiple major benefits have been reached, e.g. higher welding speeds and lower heat input. READ MORE
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5. An inductive gap measurement method for square butt joints
Abstract : A recent method in aero engine production is to fabricate components from smaller pieces, rather than machining them from large castings. This has made laser beam welding popular, offering high precision with low heat input and distortion, but also high productivity. READ MORE