Sökning: "Olivia Taivalkoski"

Hittade 2 uppsatser innehållade orden Olivia Taivalkoski.

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

   Uppsats för yrkesexamina på avancerad nivå, KTH/Materialvetenskap

   Författare :Olivia Taivalkoski; [2021]
   Nyckelord :;

   Sammanfattning : 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. LÄS MER

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

   Kandidat-uppsats, KTH/Materialvetenskap

   Författare :Olivia Taivalkoski; [2019]
   Nyckelord :Laser welding; ductile cast iron;

   Sammanfattning : 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. LÄS MER