Laser and plasma dental soldering techniques applied to Ti-6Al-4V alloy: Ultimate tensile strength and finite element analysis

Castro, Morgana Guilherme de; Araújo, Cleudmar; Menegaz, Gabriela Lima; Silva, João Paulo L.; Nóbilo, M. A. A.; Júnior, Paulo Cézar Simamoto

doi:10.1016/j.prosdent.2014.10.008

Cited by 9 publications

(38 citation statements)

References 21 publications

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“…Implantology focused on the oral rehabilitation of edentulous patients has been well-documented and extensively performed, with high success rates. This rehabilitation model, which became known ad modum as the Brånemark Protocol, has been the subject of several studies, both in relation to implants and with respect to the metallic framework (Lyra e Silva, et al 2012;Silveira-Júnior, et al 2012;Castro, et al 2015;Simamoto-Júnior et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…The studies focused on prosthetic frameworks were developed to optimize their production by the use of prefabricated bars and welding techniques other than conventional welding (Lyra e Silva, et al 2012;Silveira-Júnior, et al 2012;Castro, et al 2015;Simamoto-Júnior, et al, 2015). Studies have been conducted to evaluate the types of welding techniques (Wang & Welsch, 1995;Baba & Watanabe, 2005;Rocha, et al 2006;Zupancic, et al 2006;Barbi, et al 2012;Lyra e Silva, et al 2012;Nuñez-Pantoja, et al 2012;Atoui, et al 2013;Castro, et al 2013;Castro, et al 2015;Matos, et al 2015;, the settings of welding equipment (Chai & Chou, 1998;Baba & Watanabe, 2005;Akman, et al 2009; Lyra e Silva, et al 2015), the types of alloys used (Rocha, et al 2006;Watanabe & Topham, 2006;Takayama, et al 2012;Takayama, et al 2013;Lyra e Silva, et al 2015;Matos, et al 2015), the settings of the joints (Zupancic, et al 2006;Nuñez-Pantoja, et al 2012;Takayama, et al 2012;Kokolis, et al 2015;Simamoto-Júnior, et al 2015), and mechanical methods of evaluation of these weld joints (Nuñez-Pantoja, et al 2011;Takayama, et al 2012;Takayama, et al 2013;Castro, et al 2015).…”

Section: Introductionmentioning

confidence: 99%

“…Among the welding techniques, two have been identified for dental use: laser welding (Berg, et al 1995;Wang and Welsch, 1995;Chai & Chou, 1998;Baba & Watanabe, 2005;Akman, et al 2009;Byrne, 2011;Nuñez-Pantoja, et al 2011;Barbi, et al 2012;Nuñez-Pantoja, et al 2012;Silveira-Júnior, et al 2012;Takayma, et al 2012;Atoui, et al 2013;Castro, et al 2013;Takayama, et al 2013;Castro, et al 2015;Kokolis, et al 2015;Matos, et al 2015) and TIG or plasma welding (Wang & Welsch, 1995;Taylor, et al 1998;Rocha, et al 2006;Byrne, 2011;Barbi, et al 2012;Lyra e Silva, et al 2012;Nuñez-Pantoja, et al 2012;Silveira-Júnior, et al 2012;Atoui, et al 2013;Castro, et al 2013;Castro, et al 2015;Matos, et al 2015;Simamoto-Júnior, et al 2015). Both have some advantages: welding can be performed directly on the model (Chai & Chou, 1998;Baba & Watanabe, 2005;Rocha, et al 2006;Zupancic, et al 2006;Barbi, et al 2012;Silveira-Júnior, et al 2012;Castro, et al 2015), energy can be concentrated in a small area (Rocha, et al 2006;Barbi, et al 2012;Lyra e Silva, et al 2012;…”

Section: Introductionmentioning

confidence: 99%

“…The decision regarding how a welding technique will be used should be based on the availability of equipment (Barbi, et al 2012). However, the cost of equipment is markedly different between techniques, with the laser welding equipment being much more expensive than the TIG equipment and often unavailable for use by the prosthesis-manufacturing laboratories (Silveira-Júnior, et al 2012;Atoui, et al 2013;Castro, et al 2015).…”

Section: Introductionmentioning

confidence: 99%

“…The type of alloy has also been studied (Rocha, et al 2006;Watanabe & Topham, 2006;Lyra e Silva, et al 2012;Takayama, et al 2012;Takayama, et al 2013). While titanium alloys are most often used in studies because of their advantages of good compatibility, low density, and anti-corrosion properties (Berg, et al 1995;Chai & Chou, 1998;Taylor, et al 1998;Rocha, et al 2006;Akman, et al 2009;Nuñez-Pantoja, et al 2011;Lyra e Silva, et al 2012;Silveira-Júnior, et al 2012;Takayama, et al 2012;Atoui, et al 2013;Takayama, et al 2013;Castro, et al 2015;Simamoto-Júnior, et al 2015), casting and welding these alloys can be difficult, since titanium, when subjected to high temperatures, has high oxygen, nitrogen, and hydrogen reactivity and can become contaminated, leaving the welded areas of the framework more vulnerable (Berg, et al 1995;Wang & Welsch, 1995;Chai & Chou, 1998;Taylor, et al 1998;Lyra e Silva, et al 2012;Silveira-Júnior, et al 2012;Castro, et al 2015;Akman, et al 2009;Nuñez-Pantoja, et al 2011;Nuñez-Pantoja, et al 2012;Takayama, et al 2012;Atoui, et al 2013;Simamoto-Júnior, et al 2015). Moreover, Co-Cr alloys are increasingly popular in prosthetic dentistry, due to a favorable combination of biocompatibility, resistance to corrosion, castability, weight, stiffness, and low cost (Rocha, et al 2006;Zupancic, et al 2006;Barbi, et al 2012;Kokolis, et al 2015).…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of X-shaped welded joints with Co-Cr alloy under different welding parameters: analysis by micro-CT and flexural strength

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Raposo

Lopes

et al. 2021

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This study evaluated the mechanical strength correlated to the percentage of the total volume of weld and porosities of Co-Cr alloy joints welded with TIG technique. Thirty specimens were perpendicularly sectioned to the long-axis and rejoined by using X30-shaped joint design with TIG welding. They were divided into 3 groups (n=10): the CG1 with a 60-A depth and 90-ms pulse; the CG2 with a 60-A depth and 120-ms pulse and the CG3 with a 60-A depth and 160-ms pulse. The specimens were submitted to nondestructive tests: radiographic inspection, penetrant liquid and Micro- CT (to calculate the percentage of the total volume of welding and the porosities) and then tested with 3-point bending. The fracture surfaces were analyzed with scanning electron microscopy (SEM). The data were statistically analyzed with 1-way ANOVA and the Tukey post hoc test for all the variables which were analyzed: flexural strength, total volume of weld and porosities. Pearson correlation test was also applied (ɑ=.05). The 1-way ANOVA showed that the factors machine parameters were not significant for flexural strength values (P=.231), the total volume of weld (P=.057) and porosities (P=.057). There are no significant relationships between any pair of variables after Pearson correlation test (P >.050). This, suggesting that the three machine regulation can be an option for joining prefabricated Co-Cr rods in this kind of union.

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Section: Introductionmentioning

confidence: 99%