Essays about: "welding heat affected zone"

Showing result 1 - 5 of 9 essays containing the words welding heat affected zone.

  1. 1. Assessment of static performance of LKAB´s welded mesh : Laboratory testing and analysis

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Fredrik Eriksson; [2020]
    Keywords : ;

    Abstract : Surface support is an areal support, which is installed on rock excavation surface to prevent bulking of rock mass and retain loose rock fragments. Welded wire mesh is one type of surface support. Literature study indicates that there is a wide range of testing methods on mesh. READ MORE

  3. 2. Evaluation of material properties after laser welding on ductile cast iron

    University essay from KTH/Materialvetenskap

    Author : Olivia Taivalkoski; [2019]
    Keywords : Laser welding; ductile cast iron;

    Abstract : Scania wants to lower the weight of their trucks, including the goal to reduce the carbon dioxide emissions, and one way to do that is to use laser welding instead of fastenings.This bachelor thesis work is about laser welding of ductile cast iron, or spheroidal graphite cast iron or nodular cast iron, to QT-steels and case hardening steel and evaluation of the mechanical properties of the weld. READ MORE

  4. 3. Pitting Corrosion Evaluation of Post-Weld Cleaning Methods for Stainless Steel Welds

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Jimmy Holgersson; Klara Trydell; [2019]
    Keywords : ;

    Abstract : Welding stainless steel creates an oxide film, heat tint, on the surface and around the joint. It disrupts passivation and influence the corrosion resistance for the material. The result is often a decrease in pitting corrosion resistance for the joint and surrounding area. The heat tint is therefore commonly removed by post weld cleaning. READ MORE

  5. 4. Modelling of the temperature field in TIG arc heat treated super duplex stainless steel samples

    University essay from Högskolan Väst/Avdelningen för maskinteknik och naturvetenskap

    Author : Chamara Kumara; [2016]
    Keywords : CFD modelling; Heat affected zone; OpenFOAM; Temperature field; TIG weld-ing; Phase transformation;

    Abstract : Super Duplex Stainless Steels have superior corrosion resistance properties and strength compared to conventional steels. However, these properties are influenced by the different phases that precipitate during the heat treatment process. READ MORE

  6. 5. Microstructural evaluation of welded sheet metal formed parts

    University essay from Högskolan i Jönköping/JTH, Maskinteknik

    Author : Fredrik Liljestrand; Tornberg Ole; [2015]
    Keywords : Alloy 718; laser weld; bending; recrystallization; cold work; δ-phase; and solution treatment; Inconel 718; Lasersvets; Bockning; Kalldeformation; Rekristallisation; δ-fas; Upplösningsbehandling;

    Abstract : The purpose of this report is to evaluate the hardness and microstructure in bent and welded samples of Alloy 718. The results will be used by GKN aerospace to evaluate the simulated values of the production process of vines in a jet engine. In total, eleven samples from three different production chains are evaluated. READ MORE