Laser-GMA Hybrid Welding of Direct Quenched Steel in Lap Joint Configuration: A Preliminary Study

Miikka Karhu, Veli Kujanpää, Kalervo Leino, Jukka Siltanen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

1 Citation (Scopus)

Abstract

Welding experiments using laser-GMA hybrid welding of lap joint between 6.5 mm thick direct quenched Ramor 500 grade protection steel and 2 mm thick Optim 500 MC construction steel plates was carried out. The filler materials used were Union X96 and AISI 316LSi wire. Direct quenched Ramor 500 grade steel can be used e.g. as an armour plating applications because it possess excellent ballistic properties combined with high strength and hardness. However, joining of above material by welding can be challenging because of local softening at heat affected zone regions. The aim was to evaluate feasibility of hybrid welding process in joining point of view and to evaluate base and filler material weldability concerning e.g. hardness distribution across the weld cross-section. Also dilution assessments were made using EDS measurements in order to reveal how base and filler material is distributed across the weld cross-section.
Original languageEnglish
Title of host publicationProceedings
Subtitle of host publication31st International Congress on Applications of Lasers & Electro-optics, ICALEO 2012
Place of PublicationAnaheim, CA, USA
PublisherLaser Institute of America
Pages486-493
ISBN (Print)978-0-9120-3596-3
Publication statusPublished - 2012
MoE publication typeA4 Article in a conference publication
Event31st International Congress on Applications of Lasers & Electro-optics, ICALEO 2012 - Anaheim, CA, United States
Duration: 23 Sep 201227 Sep 2012

Conference

Conference31st International Congress on Applications of Lasers & Electro-optics, ICALEO 2012
Abbreviated titleICALEO 2012
CountryUnited States
CityAnaheim, CA
Period23/09/1227/09/12

Fingerprint

Welding
Fillers
Steel
Lasers
Joining
Welds
Hardness
Steel construction
Weldability
Armor
Heat affected zone
Ballistics
Plating
Dilution
Energy dispersive spectroscopy
Wire
Experiments

Keywords

  • Laser GMA-hybrid welding
  • direct quenched steel
  • dilution
  • hardness profile

Cite this

Karhu, M., Kujanpää, V., Leino, K., & Siltanen, J. (2012). Laser-GMA Hybrid Welding of Direct Quenched Steel in Lap Joint Configuration: A Preliminary Study. In Proceedings : 31st International Congress on Applications of Lasers & Electro-optics, ICALEO 2012 (pp. 486-493). Anaheim, CA, USA: Laser Institute of America.
Karhu, Miikka ; Kujanpää, Veli ; Leino, Kalervo ; Siltanen, Jukka. / Laser-GMA Hybrid Welding of Direct Quenched Steel in Lap Joint Configuration : A Preliminary Study. Proceedings : 31st International Congress on Applications of Lasers & Electro-optics, ICALEO 2012. Anaheim, CA, USA : Laser Institute of America, 2012. pp. 486-493
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abstract = "Welding experiments using laser-GMA hybrid welding of lap joint between 6.5 mm thick direct quenched Ramor 500 grade protection steel and 2 mm thick Optim 500 MC construction steel plates was carried out. The filler materials used were Union X96 and AISI 316LSi wire. Direct quenched Ramor 500 grade steel can be used e.g. as an armour plating applications because it possess excellent ballistic properties combined with high strength and hardness. However, joining of above material by welding can be challenging because of local softening at heat affected zone regions. The aim was to evaluate feasibility of hybrid welding process in joining point of view and to evaluate base and filler material weldability concerning e.g. hardness distribution across the weld cross-section. Also dilution assessments were made using EDS measurements in order to reveal how base and filler material is distributed across the weld cross-section.",
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Karhu, M, Kujanpää, V, Leino, K & Siltanen, J 2012, Laser-GMA Hybrid Welding of Direct Quenched Steel in Lap Joint Configuration: A Preliminary Study. in Proceedings : 31st International Congress on Applications of Lasers & Electro-optics, ICALEO 2012. Laser Institute of America, Anaheim, CA, USA, pp. 486-493, 31st International Congress on Applications of Lasers & Electro-optics, ICALEO 2012, Anaheim, CA, United States, 23/09/12.

Laser-GMA Hybrid Welding of Direct Quenched Steel in Lap Joint Configuration : A Preliminary Study. / Karhu, Miikka; Kujanpää, Veli; Leino, Kalervo; Siltanen, Jukka.

Proceedings : 31st International Congress on Applications of Lasers & Electro-optics, ICALEO 2012. Anaheim, CA, USA : Laser Institute of America, 2012. p. 486-493.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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T1 - Laser-GMA Hybrid Welding of Direct Quenched Steel in Lap Joint Configuration

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AB - Welding experiments using laser-GMA hybrid welding of lap joint between 6.5 mm thick direct quenched Ramor 500 grade protection steel and 2 mm thick Optim 500 MC construction steel plates was carried out. The filler materials used were Union X96 and AISI 316LSi wire. Direct quenched Ramor 500 grade steel can be used e.g. as an armour plating applications because it possess excellent ballistic properties combined with high strength and hardness. However, joining of above material by welding can be challenging because of local softening at heat affected zone regions. The aim was to evaluate feasibility of hybrid welding process in joining point of view and to evaluate base and filler material weldability concerning e.g. hardness distribution across the weld cross-section. Also dilution assessments were made using EDS measurements in order to reveal how base and filler material is distributed across the weld cross-section.

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KW - direct quenched steel

KW - dilution

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Karhu M, Kujanpää V, Leino K, Siltanen J. Laser-GMA Hybrid Welding of Direct Quenched Steel in Lap Joint Configuration: A Preliminary Study. In Proceedings : 31st International Congress on Applications of Lasers & Electro-optics, ICALEO 2012. Anaheim, CA, USA: Laser Institute of America. 2012. p. 486-493