Sökning: "spot welds"
Visar resultat 1 - 5 av 10 avhandlingar innehållade orden spot welds.
1. Mechanical Properties of Resistance Spot Welds in Lightweight Applications
Sammanfattning : This licentiate thesis is concerned with residual stresses in aluminum alloy 6061-T6 resistance spot welded joint. Several topics related to mechanical strength of welded structures are treated such as; nugget size and microhardness and microstructures of weld zone and their influence on mechanical strength of welded structure, failure load measurement using tensile-shear test, resistance spot welding simulation, residual stress measurement by X-ray diffraction method and analysis effect of welding parameters on the mechanical strength and the residual stresses. LÄS MER
2. Fatigue of Spot Welded Joints: Experiments and Life Predictions
Sammanfattning : Methods to assess the fatigue strength of spot welds in built-up structures are used on a daily basis in the automotive industry. Efficient and reliable numerical methods make it possible to achieve designs with low weight, low manufacturing costs and good durability within short development cycles, since the number of prototypes built can be reduced. LÄS MER
3. Fatigue Strength of Friction Stir Welded Joints in Aluminium
Sammanfattning : Solid state Friction stir welding (FSW) is of major interest in the welding of aluminium since it improves the joint properties. Many applications where Al-alloys are used are subject to varying load conditions, making fatigue failure a critical issue. LÄS MER
4. Laser welding of ultra-high strength steel and a cast magnesium alloy for light-weight design
Sammanfattning : There is a strong industrial need for developing robust and flexible manufacturing methods for future light-weight design. Better performing, environmental friendly vehicles will gain competitive strength from using light weight structures. LÄS MER
5. Adhesive joining for crashworthiness : material data and explicit FE-methods
Sammanfattning : Today, crash simulations replace crash testing in the product development phase in theautomotive industry. High quality simulations enable shorter product development time andhigher competitiveness. LÄS MER