SVIBOR - Project code: 2-08-242

MINISTRY OF SCIENCE AND TECHNOLOGY

Strossmayerov trg 4, HR - 10000 ZAGREB
tel.: +385 1 459 44 44, fax: +385 1 459 44 69
E-mail: ured@znanost.hr

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Project code: 2-08-242


INVESTIGATION INTO THE ELECTROSLAG WELDING PROCESS


Main researcher: MESING, DAMIR (95485)


Assistants
Type of research: applied
Duration from: 05/01/91. to 05/01/94.
Papers on project (total): 5
Institution name: Končar, Institut za elektrotehniku, Zagreb (8)
Department/Institute: Department for welding and allied processes
Address: Baštijanova b.b.
City: 10000 - Zagreb, Croatia
Communication
Phone: 385 (0)1 315 497
Fax: 385 (0)1 334 170
Summary: The investigation deals with the possibilities of eliminating unwanted characteristics of electroslag welded joints. Basic theoretical ground is defined on the basis of which process parameters would be modified. Through the results od experiments all neccessary process parameters are defined in order to obtain finer grain structures in the HAZ and to fully eliminate any need for normalization.

Keywords: Electroslag welding, coarse grained-as cast structure, normalization, high-speed electroslag welding

Research goals: The objective of this investigation is to first of all enhance the cost effectiveness of the process through better weld and HAZ structures after welding and elimination of normalization. Experimenting with higher welding speeds with the addition of special powdered filler materials along with the standard welding wire, all the relevant process parameters will be investigated in order to find the right combination that assures a thermodynamically stable process and gives the right weld structures. A successful investigation would make it possible to utilize this otherwise irreplacable method more cost effectively for joining thick metal structures like in the production of generators and to create new theoretical ground neccessary for the changeover from ordinary construction steels to low alloyed small grained steels.
Other information about the project.
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Last update: 10/13/95
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