university of zagreb-prague
TRANSCRIPT
University of Zagreb
University consists of:
29 Faculties and
3 Academies
Students: ~ 72000
Employees: ~ 7900
The University of Zagreb (1669) is the oldest and biggest university in South-Eastern Europe.
- more than 2500 students
- more than 400 employees
- more than 10.500 graduated engineers- 3 STUDIES
- 13 DEPARTMENTS
- 40 CHAIRS
- 43 LABORATORIES
Head of the Welded Structures Department:
Ph.D. Zoran Kožuh
Head of the Welding Laboratory:
Ph.D. Ivica Garašić
2 senior assistants, 1 assistant, 3 laborants,
1 professional associate
Research activities of the department include:
• study of weldability of high strength and high alloyed steels, Al-alloys, Cu-alloys and Ti-alloys
• development of special filler materials
Research activities of the department include:
• development of power sources used for welding
• robotics and the implementation of automation in
welding
VARSTROJ VPS 4000 digital
Research activities of the department include:
• development of power sources used for welding
• robotics and the implementation of automation in
welding
Research activities of the department include:
• development of power sources used for welding
• robotics and the implementation of automation in
welding
Plasma cutting 6 axis robot cell for MIG/MAG, TIG
Research activities of the department include:
• development of adhesive bonding and brazing as joining technologies
• design of welded structures
• study of the welding of polymer materials
• investigation of thermal spraying
• development of underwater wet welding and cutting
Cooperation with industry:
• development of new welding technologies and filler materials
• consultancy services in the development and testing of power sources used for welding
• verification of welding procedures
• testing of weldability
• expertise
Cooperation with industry:
• underwater operations, such as inspections and repairs
• complex repairs by applying welding joining processes
• supervision of welding operations in the fabrication of structures,
such as bridges, storage tanks, pipelines, supporting structures
• certification of the companies engaged in the fabrication of
welded structures according to the national standards
Cooperation with industry:
• education of welders, following the EWF, IIW guidelines,
for the European Welder qualification, conferences and fairs
• Aluminium foam sandwich panels produced by
Pohltec metalfoam GmbH, Germany.
• Thickness of the panel is 12 mm.
• Cover layer is made of 1 mm thick EN AW 6082-T4
aluminium alloy sheets.
• Core is made of AlMg3Si6 aluminium foam.
Temperature fields in Friction Stir Welding
Welding of stainless steel
requires groove
preparation for
thicknesses above 3 mm!
Development of Active flux for TIG Welding
Some of the components
for producing active flux
for stainless steels!
Development of Active flux for TIG Welding
Joint research with ELEKTRODA ZAGREB:
- development of Active flux for TIG Welding
- development of filler materials for CrNi steels, CrMo steels, Ni alloys etc.
- development of electrodes for underwater wet welding
Started with Wire + arc additive manufacturing:
• duplex stainless steel
• INCONEL 625
Thank you for your attention!