Welding strength of NiTi wires

Mesquita, Tatyane Ribeiro; Martins, Renato Parsekian

doi:10.1590/2177-6709.22.3.058-062.oar

Cited by 4 publications

(3 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…All welding techniques altered the original properties of the wires, with significant differences between the methods. Despite this reduced resistance, all techniques generated structures strong enough to withstand orthodontic forces (Mathew et al, 2016;Mesquita et al, 2018;Muguruma et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

Comparison between traditional and alternative biocompatible welding techniques used in orthodontic devices

et al. 2020

View full text Add to dashboard Cite

Objective: To compare the mechanical strength of joints made by conventional soldering with those made by alternative, more biocompatible, methods (spot, tungsten inert gas [TIG] and laser welding), and to compare the microstructural morphology of wires welded with these techniques. Design: In vitro, laboratory study. Methods: Forty stainless-steel wire segments with 0.8-mm diameter were joined by silver soldering, spot, laser and TIG welding. Ten specimens were produced for each one. Tensile strength test was performed 24 h after welding on the Emic DL2000™ universal testing machine, using a load cell of 1000 N with a crosshead speed of 10 mm/min. Results: The highest tensile strength mean values were obtained with silver soldering (532 N), next were laser (420 N), spot (301 N) and TIG (296 N) welding. Statistically significant differences were observed between the groups; the Dunn post-hoc test revealed differences between laser and spot welding ( p=0.046), laser and TIG ( p = 0.016), spot and silver ( p <0.001), and silver and TIG ( p <0.001). Conclusion: Laser welding strength is high, and comparable to silver welding. Spot and TIG techniques present comparable and significantly lower strengths. The four methods presented resistance values compatible with orthodontic use. The microstructural morphology is different for each technique. The association between the mechanical performance and the microstructure evaluation shows that laser presented the highest quality joint.

show abstract

Section: Discussionmentioning

confidence: 99%

Comparison between traditional and alternative biocompatible welding techniques used in orthodontic devices

et al. 2020

View full text Add to dashboard Cite

show abstract

“…For a fraction of a second, a high-intensity current is passed, which develops heat within the area in contact with the electrodes, allowing for localized fusion. The solidification of the metal, which occurs while the electrodes are still pressed, leads to the formation of the welding point [70]. The melting of the metal occurs only within the contact area with the electrodes.…”

Section: Electric Spot Weldingmentioning

confidence: 99%

Soldering in Dentistry: An Updated Technical Review

Cumbo,

Gallina,

Messina

et al. 2024

JCM

View full text Add to dashboard Cite

Introduction: The need to permanently join two or more pieces of metal using heat is a frequent condition in various fields of medicine such as dentistry. Welding, brazing and soldering are permanent joining techniques between different metals that require in-depth background knowledge in order to obtain predictable results. Aim: This review examines the different methods of joining metals using heat and their fields of application. Discussion: It is possible to create permanent metal joints in various phases of the creation of final products that will be used on the patient. In several cases, welds are also made directly by the manufacturer during industrial processing. In dentistry, dental laboratories perform complex welds mainly on dental prostheses and orthodontic appliances during the production process. It is also possible to obtain intraoral welding carried out by the clinician inside the patient’s oral cavity. Welding can be carried out using combustible gases, electric current, infrared light and laser light through different technical procedures which must be chosen according to the specific needs and the metals to be joined. Conclusions: It is useful for the dentist and dental technician to know the different welding methods, including those carried out in the factory by the manufacturer, to better understand the physical properties and mechanical resistance of the components marketed for the construction of prostheses and orthodontic appliances. The enormous variety of conditions in which those who practice welding can find themselves therefore presupposes in-depth knowledge in this field in order to apply the most suitable technique.

show abstract

“…Resistance spot welding was successfully used to join cylindrical NiTinol wire with rectangular one for orthodontic applications [22]. The kind of orthodontic wires, made of NiTinol and used for tooth adjustment, improve the design flexibility by fabricating a small piece of NiTinol wire with a leveling wire.…”

Section: Inevitability and Obligations For Nitinol Weldingmentioning

confidence: 99%

A Review on Present Status of Friction Stir Welding of Nitinol, a Functionally Advanced, Versatile and Widely Used Shape Memory Alloy

Datta,

Biswas

2023

Shape Memory Alloys - New Advances

View full text Add to dashboard Cite

Ni-Ti alloys are extensively utilized in different fields of manufacturing because of their typical pseudoelastic effect and the shape memory properties. Welding of NiTinol is always essential to manufacture diverse geometrical structures with sufficient design flexibility following the application necessities. NiTinol is susceptible to compositional variations and microstructural changes because of the welding process. As a result, the mechanical and microstructural properties along with other functional properties get deteriorated with time. Welding of NiTinol without melting is extremely substantial because of the avoidance of the volatilization of the compositional constituents. Friction stir welding, a solid-state welding method, satisfies all the vital necessities of NiTinol alloy welding. This chapter will describe the friction stir welding of NiTinol in both similar and dissimilar material combinations in detail. The effect of different welding process variables on mechanical and metallurgical properties will be described along with the description of the smart functionality of the welded structures and the corrosion resistance performance.

show abstract

Welding strength of NiTi wires

Cited by 4 publications

References 14 publications

Comparison between traditional and alternative biocompatible welding techniques used in orthodontic devices

Comparison between traditional and alternative biocompatible welding techniques used in orthodontic devices

Soldering in Dentistry: An Updated Technical Review

A Review on Present Status of Friction Stir Welding of Nitinol, a Functionally Advanced, Versatile and Widely Used Shape Memory Alloy

Contact Info

Product

Resources

About