Search for dissertations about: "welding equipment"

Showing result 1 - 5 of 20 swedish dissertations containing the words welding equipment.

  2. 1. Power electronics for resistance spot welding equipment

    Author : Jawad Saleem; Mittuniversitetet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Resistance spot welding is an inexpensive and efficient way ofjoining metals. It has extensive applications in household appliancesand in automotive industries. The traditional approach in relation tospot welding machines is to use 50 Hz welding transformers. Thedrawback associated with these transformers is that they are both heavyand bulky. READ MORE

  4. 2. Power electronics for - and modelling of - resistance welding equipment

    Author : Jawad Saleem; Kent Bertilsson; Bengt Oelmann; Mittuniversitetet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : .... READ MORE

  5. 3. Analysis and Monitoring of Laser Welding and Surface Texturing

    Author : Rickard Olsson; Alexander Kaplan; John Powell; Jan Frostevarg; Michael Zäh; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Laser welding; monitoring; Signal processing; laser texturing; texture analysis; Produktionsutveckling; Manufacturing Systems Engineering;

    Abstract : This thesis can be conveniently divided into three sections as follows;Part I. Monitoring of laser welding In laser materials processing there has always been a need for suitable methods to supervise and monitor the processes on-line, to ensure correct production quality or to trigger alarms when failures are detected. READ MORE

  6. 4. Fatigue properties of cut and welded high strength steels : Quality aspects in design and production

    Author : Thomas Stenberg; Zuheir Barsoum; Kenneth Alasdair MacDonald; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Welding; Fatigue assessment; Cutting; Weld quality; Fatigue design; Fracture Mechanics; Vehicle and Maritime Engineering; Farkostteknik;

    Abstract : This doctoral thesis concerns fatigue of welded structures. Welding is one of the world’s most common joining methods and it is frequently used in several structural applications in many fields. Some examples are construction vehicles, loader cranes, trucks, busses, forestry and agricultural machines, bridges and ships. READ MORE

  7. 5. Signal processing and high speed imaging as monitoring tools for pulsed laser welding

    Author : Rickard Olsson; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Laser welding; digital signal processing; High speed imaging; monitoring; Kalman filtering; Manufacturing Systems Engineering; Produktionsutveckling;

    Abstract : In Laser Materials Processing there has always been a need for suitable methods to supervise and monitor the processes on line, to ensure correct production quality or to trigger alarms when failures are detected. Numerous investigations have been made in this field, including experimental and theoretical work. READ MORE