Laser welding of cast titanium and dental alloys using argon shielding

Journal of Prosthodontics : Official Journal of the American College of Prosthodontists
I Watanabe, D Scott Topham

Abstract

This study investigated the effect of argon gas shielding on the strengths of laser-welded cast Ti and Ti-6Al-7Nb and compared the results to those of two dental casting alloys. Cast plates of Ti, Ti-6Al-7Nb, gold, and Co-Cr alloy were prepared. After polishing the surfaces to be welded, two plates were abutted and welded using Nd:YAG laser at a pulse duration of 10 ms, spot diameter of 1 mm, and voltage of 200 V. Five specimens were prepared for each metal by bilaterally welding them with three or five spots either with or without argon shielding. The failure load and percent elongation were measured at a crosshead speed of 1.0 mm/min. The factor of argon shielding significantly affected the failure load and elongation of the laser-welded specimens. The failure loads of argon-shielded laser-welded CP Ti and Ti-6Al-7Nb were greater compared with the failure loads of specimens welded without argon shielding for both three- and five-spot welding. Regardless of argon shielding, the failure loads of the laser-welded gold alloy were approximately half that of the control specimens. In contrast, the failure loads of the nonshielded laser-welded Co-Cr alloy were greater. The percent elongations positively correlated with the failure l...Continue Reading

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Citations

Sep 1, 2006·Photomedicine and Laser Surgery
Jul 12, 2008·European Journal of Orthodontics·Jens Johannes BockRobert Andreas Werner Fuhrmann
Nov 3, 2011·The Angle Orthodontist·Etsuko WatanabeIkuya Watanabe
Nov 30, 2011·Dental Materials Journal·Juliana Maria Costa Nuñez-PantojaMarcelo Ferraz Mesquita
Mar 27, 2012·Dental Materials Journal·Yasuko TakayamaChikahiro Ohkubo
Dec 12, 2012·The Journal of Prosthetic Dentistry·Francisco C L BarbiJefferson R Pereira
Dec 7, 2007·Dental Materials : Official Publication of the Academy of Dental Materials·Viritpon SrimaneepongTakao Hanawa
Sep 17, 2008·Journal of Oral Rehabilitation·C OhkuboT Hosoi
Jan 22, 2008·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Hidemasa Shimpo
Oct 7, 2011·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Iara Augusta OrsiValeria Oliveira Pagnano
Nov 29, 2011·Gerodontology·Juliana M C Nuñez PantojaMarcelo F Mesquita
Aug 4, 2010·Journal of Oral Rehabilitation·J M C Nuñez-PantojaM F Mesquita
Dec 4, 2009·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Honghua LiuGuo He
Dec 5, 2015·Biomaterials Research·Jun-Hee LeeMin-Ho Hong
Mar 10, 2015·The Journal of Prosthetic Dentistry·Paulo Cézar Simamoto JúniorLuís Henrique Araújo Raposo
Mar 10, 2015·The Journal of Prosthetic Dentistry·Morgana G CastroPaulo Cézar Simamoto Júnior
Dec 12, 2013·Lasers in Medical Science·Youssef S Al JabbariSpiros Zinelis
Mar 2, 2011·Brazilian Oral Research·Juliana Maria Costa Nuñez-PantojaMarcelo Ferraz Mesquita
Dec 18, 2008·Journal of Applied Oral Science : Revista FOB·Jens Johannes BockRobert Andreas Werner Fuhrmann
Feb 28, 2015·The Journal of Advanced Prosthodontics·John KokolisSpiros Zinelis
Aug 25, 2017·Dental Materials Journal·Chikahiro OhkuboYasunori Suzuki
Nov 15, 2018·Micromachines·Asma PerveenCarlo Fornaini
Mar 14, 2016·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Kenta YamanakaAkihiko Chiba
Sep 7, 2018·Materials Science & Engineering. C, Materials for Biological Applications·Kenta YamanakaAkihiko Chiba

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