Essays about: "Laser Welding"

Showing result 6 - 10 of 45 essays containing the words Laser Welding.

  1. 6. Evaluation of welding joint methods for a prismatic battery cell module

    University essay from Lunds universitet/Innovation

    Author : William Hellingwerf; [2021]
    Keywords : Aluminium welding methods; Battery module; Prismatic cell; Weld strength; Weld analysis; Weld temperature simulation; Technology and Engineering;

    Abstract : Prismatic battery cells swell due to a number of different factors, such as state of charge, temperature and irreversibly with charge cycling. Cell health can be improved by restricting the swelling of the cell, and therefore, the container which holds the cells, the module, should be able to restrict the swelling, and thus withstand the force exerted by the cells. READ MORE

  3. 7. Laser-arc hybrid welding of high strength steel : Weld quality and process stability

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : David Lohse; [2021]
    Keywords : Laser; arc; hybrid; welding; high; strength; steel; high-strength; HSLA; weld quality; process stability;

    Abstract : The development of high strength steel enables constructions to be made with less material than with previous used steel grades. The possibility of creating lightweight constructions with the same or even better mechanical properties is of high focus in the steel industry today. READ MORE

  4. 8. Laser ablation of aluminium before welding : Effect of weld preparation on number and sizes of pores

    University essay from KTH/Materialvetenskap

    Author : Olivia Taivalkoski; [2021]
    Keywords : ;

    Abstract : Welding aluminium often results in porosity in the weld. One way to reduce porosity is by carful weld preparation and cleaning. In this master thesis report laser ablation was done on aluminium plates before welding to remove dirt and the surface oxide layer. READ MORE

  5. 9. Techniques for Improving Weldability and Testing of Weld-bonded Joints

    University essay from KTH/Maskinkonstruktion (Inst.)

    Author : Mattias Högsäter Myhr; [2020]
    Keywords : Adhesives; Automotive industry; Resistance Spot Welding; RSW; Weldability; Weld-bonding; Welding parameters; Fordonsindustri; Limning; Limpunktsvetsning; Motståndssvetsning; Punktsvetsning; Svetsbarhet; Svetsparametrar;

    Abstract : Increased understanding of improving the weld-bonding process is essential in order for the automotive industry to constantly develop their designs and production processes for the energy-efficient vehicles of the future. The joining method of weld-bonding, a hybrid method of adhesive joining and resistance spot welding, has introduced new challenges in the manufacturing and design of auto bodies. READ MORE

  6. 10. Modelling of Laser Welding of Aluminium using COMSOL Multiphysics

    University essay from KTH/Materialvetenskap

    Author : Jie Chen; [2020]
    Keywords : laser welding process; aluminium alloy; thermal-mechanical; COMSOL Multiphysics; hot cracking; thermal model; CFD model; mechanical model; Marangoni effect; lasersvetsningsprocess; aluminiumlegeringar; termisk-mekanisk; COMSOL-flerfysik; hetsprickning; termisk modell; CFD-modell; mekanisk modell; Marangoni-effekt;

    Abstract : This thesis presents a modelling approach of laser welding process of aluminium alloy from the thermo-mechanical point of view to evaluate the occurrence of hot cracking based on simulation results and relevant criteria. The model was created stepwise in COMSOL Multiphysics, starting with the thermal model where heat conduction of solid and liquid phase was computed. READ MORE