Examination of Laser Microwelded Joints of Additively Manufactured Individual Implants

Open access

Abstract

Digital product processing and the utilization of novel, tissue-friendly materials allow the use of fixed dentures for patients. Its basis is a titanium plate fixed to the cortical bone surface at given screw positions. A digital dental cast is created from the existing bone surface, and modelling and necessary statistical analyses are carried out in a virtual environment. Safety of the welded joint is evaluated with mechanical methods. When designing the fixing points, an idealized denture is used that was previously designed for the patient. The number and position of pillar elements used for screw fixation of the denture are determined by the complex geometry of the denture itself, and the location, direction, and articulating position of existing teeth. The additively manufactured implant and the machined pillar sleeves are joined with laser-welding at given nesting positions. Homogeneity of the metallic material structure at the welded joint zone of the product is examined with micro-CT. Due to this implementation method, surgical time decreases together with complication rates and post-operative problems.

If the inline PDF is not rendering correctly, you can download the PDF file here.

  • [1] Malinov S. Sha W.: Application of artifical neural networks for modeling correlations in titanium alloy. Materials Science and Engineering A 41/1-2. (2010) 140–146. https://doi.org/10.1016/j.msea.2003.09.029

  • [2] Shrivastava S.: Medical Device Materials Anaheim CA. In: Proceedings of the Materials and Processes for Medical Devices Conference 2003. 417. https://www.asminternational.org/documents/10192/1849770/06974g_frontmatter.pdf

  • [3] Xie J. Safarevich S.: Laser materials porcessing for medical devices. In: Shrivastava S. (ed.): Proceedings of the Materials and Processes for Medical Devices Conference Anaheim CA ASM International. 2003. 25–30.

  • [4] Saresh N. Gopalakrishna Pillai M. Mathew J.: Investigations into the effects of electron beam welding on thick Ti-6Al-4V titanium alloy. Journal of Materials Technology 192–193. (2007) 83–88. https://doi.org/10.1016/j.jmatprotec.2007.04.048

  • [5] Welding Handbook. Weldings Processes. vol. 2. American Welding Society Miami FL 1988. 695–697.

  • [6] Welding Handbook. Metals and Their Weldability vol. 4. American Welding Society Miami FL 1982. 447–449.

  • [7] Gupta B. Krishna V. G.: Aerospace Materials vol. 1. S-Chand and Company Ltd. New Delhi India 1996.

  • [8] Kelly S. M Kapmpe S. L.: Microstructural evolution in laser-deposited multilayer Ti-6Al-4V builds. Part II. Thermal modeling. Metallurgical and Materials Transactions A 35/6. (2004) 1869–1879. https://doi.org/10.1007/s11661-004-0095-7

  • [9] Qian L. Mei K. Liang J. Wu X.: Influence of position and laser power on thermal history and microstructure of direct laser fabricated Ti-6Al-4V samples. Materials Science and Technology 21/5. (2005) 597–605. https://doi.org/10.1179/174328405X21003

  • [10] Dinda G. p. Song L. Mazumder J.: Fabrication of Ti-6Al-4V scaffolds by direct metal deposition. Metallurgical and Material Transactions A - Physical Metallurgy and Materials Science 39/12. (2008) 2914–2922. https://doi:10.1007/s11661-008-9634-y

  • [11] Nowotny S. Scharek S. Beyer E. Richter K. H.: Laser beam build-up welding: precision in repair surface cladding and direct 3D metal deposition. Journal of Thermal Spray Technology 16/3. (2007) 344–348. https://doi:10.1007/s11666-007-9028-5

  • [12] Taminger K. M. Hafley R. A.: Electron beam freeform fabrication for cost effective nearnet shape manufacturing. In: NATO/RTO AVT-139 specialists meeting on cost effective manufacture via net shape processing Amsterdam (The Netherlands): NATO (2006) https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20080013538.pdf

  • [13] Katou M. Oh J. Miyamoto Y. Matsuura K. Koduh M.: Freeform fabrication of titanium metal and intermetallic alloys by three-dimensional micro welding. Materials and Design 28/7. (2008) 2093–2098. https://doi.org/10.1016/j.matdes.2006.05.024

  • [14] C lark D. Bache M. Whittaker M.: Shaped metal deposition of a nickel alloy for aero engine applications. Journal of Materials Processing Technology 203/1-3. (2008) 439–448. https://doi.org/10.1016/j.jmatprotec.2007.10.051

  • [15] Baufeld B. Van der Biest O. Gault R.: Additive manufacturing of Ti-6Al-4V components by shaped metal deposition: Microstructure and mechanical properties. Materials and Design 31/1. (2010) 106–111. https://doi.org/10.1016/j.matdes.2009.11.032

  • [16] Barreda J. L. Santamaram F. Azpiroz X. Irisarri A. M. Varona J. M.: Electron beam welded high thickness Ti-6Al-4V plates using filler metal of similar and different composition to the base plate. Vacuum 62/2–3. (2001) 143–150. https://doi.org/10.1016/S0042-207X(00)00454-1

  • [17] Baeslack W. A. Becker D. W. Froes F. H.: Advances in titanium alloy welding metallurgy. Journal of Metals 36/5. (1984) 46–82. https://slideheaven.com/queue/advances-in-titanium-alloy-welding-metallurgy.html

  • [18] Balasubramanian M. Jayabalan V. Balasubramanian V.: Developing mathematical models to predict tensile properties of pulsed current gas tungsten arc welded Ti-6Al-4V alloy. Materials and Design 29/1. (2008) 92–97. https://doi.org/10.1016/j.matdes.2006.12.001

  • [19] Li X. Xie J. Zhou Y.: Effects of oxygen contamination in the argon shielding gas in laser welding of commercially pure titanium thin sheet. Journal of Materials Science 40/13. (2005) 3437–3443. http://www.camj.uwaterloo.ca/pdf/Zhou/JMS-2005%20Li.pdf

  • [20] Brandl E. Baufeld B. Leyens C. Gault R.: Additive manufactured Ti-6Al-4V using welding wire: comparison of laser and arc beam deposition and evaluation with respect to aerospace material specifications. ScienceDirect – Physics Prodedia 5/1. (2010) 595–606. https://doi.org/10.1016/j.phpro.2010.08.087

Search
Journal information
Metrics
All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 14 14 3
PDF Downloads 9 9 2