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Laser and hybrid laser-MIG welding for Boron 02-Docol 420 and Usibor 1500P-Dogal 420 lap joint
2007 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

This thesis presents experimental investigations and results of laser and hybrid lap welding in mild steels. The study describes the joint Boron 02- Docol 420 and the joint Usibor 1500P-Dogal 420 when they are laser and hybrid welded. The work is divided up into four parts: A brief introduction about welding and allied processes that summarizes the characteristics, advantages and disadvantages of the typical welding processes (arc welding, laser and hybrid welding). A chapter entitled “Lap joint and preparation of the experiments”. In this chapter we talk about the main characteristics of lap joints, and we describe the equipment used for the experiments, the way how to handle them, the parameters chosen for the welds and how to prepare the metals for inspection and test. A paper entitled “Analysis of Boron 02-Docol 420 lap joint“. This paper makes a geometrical study of laser and hybrid welding in this material. Visual inspections, micro examinations and hardness measurements were carried out to decide what kind of weld is the best for these materials. A paper entitled “Analysis of Usibor 1500P-Dogal 420 lap joint”. This paper is divided up like the previous paper.

Place, publisher, year, edition, pages
Keyword [en]
Technology, Laser, Hybrid, Welding, Properties
Keyword [sv]
URN: urn:nbn:se:ltu:diva-46661ISRN: LTU-EX--07/268--SELocal ID: 4477825e-6b08-465f-9adc-389b812ac1abOAI: diva2:1019976
Subject / course
Student thesis, at least 30 credits
Educational program
Mechanical Engineering, master's level
Validerat; 20101217 (root)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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