Essays about: "Low energy welding"

Found 5 essays containing the words Low energy welding.

  1. 1. Using gallium nitride nanowires as STM probes

    University essay from Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Author : Karolis Sulinskas; [2018]
    Keywords : STM; STS; Nanowire; GaN; InAs; Semiconductors; Physics and Astronomy;

    Abstract : Gallium nitride (GaN) nanowires grown using catalyst-free metal organic vapor phase epitaxy were used as scanning tunneling microscope (STM) probes. The probes were prepared by placing a GaN nanowire on a tungsten STM probe using a nanomanipulator in a scanning electron microscope (SEM) and welding them together using an electron beam induced platinum deposition. READ MORE

  3. 2. Residual stresses in Ti-6Al-4V from low energy laser repair welding

    University essay from KTH/Maskinkonstruktion (Inst.)

    Author : Peter Ericson; [2018]
    Keywords : Micro laser welding; Low energy welding; Ti-6Al-4V; Ti64; Residual stress; Response Surface Methodology; Repair welding; Welding simulation; Mikrolasersvetsning; Lågenergetisk svetsning; Lågenergisvets; Ti-6Al-4V; Ti64; Restspänningar; Response Surface Methodology; Reparationssvets; Svetssimulering;

    Abstract : Millimeterstora och svårupptäckta defekter kan uppstå internt i stora och komplexa gjutgods av Ti-6Al-4V, ibland går dessa oupptäckta tills detaljen genomgått mekanisk bearbetning och en stor kostnad redan har gått in i den. Dessa defekter och andra industriella olyckshändelser leder till ett behov av additiva reparationsmetoder där den för tillfället rådande metoden är TIG-svetsning. READ MORE

  4. 3. 3D FE Simulations of Resistance Spot Welding

    University essay from KTH/Hållfasthetslära (Inst.)

    Author : David Lövenborn; [2016]
    Keywords : ;

    Abstract : Resistance spot welding (RSW) is thedominant joining technology in theautomotive industry. This is due to its lowcosts and high efficiency. READ MORE

  5. 4. Comparison of a new, high precision, energy efficient welding method with the conventional Gas Metal Arc Welding on high carbon steel base metal

    University essay from Högskolan Väst/Avd för tillverkningsprocesser

    Author : Aimal Mazidi; [2014]
    Keywords : Gas Metal Arc Welding;

    Abstract : CMT+P welding is less susceptible to hot cracking than the MAG welding process due to use of low heat input properties. Solidification cracking was found in all weld specimens that had greater 0.39KJ/mm heat inputs. Cracking occurs because of the contraction stresses generates during cooling. READ MORE

  6. 5. Hybrid Joining of Aluminum to Thermoplastics with Friction Stir Welding

    University essay from KTH/Materialvetenskap

    Author : Wallop Ratanathavorn; [2012]
    Keywords : friction stir welding; hybrid welding;

    Abstract : Hybrid structures including aluminum-thermoplastic and aluminum-reinforced thermoplastic composite are increasingly important in the near future innovations due to its lightweight and high strength-to-weight ratio. A critical point for metal-polymer application is that sound joining of these materials is difficult to achieve owing to a large difference in surface energy and dissimilar structure between metal and polymer. READ MORE