Study looks to Ti-553 to improve osseintegration in metal AM implants

May 1, 2020

Surface topography of additively manufactured Ti-553 (Courtesy McMaster University )

Recent research from Mohawk College and McMaster University, Hamilton, Ontario, Canada, has been published which shows how new combinations of materials and manufacturing techniques can improve the chance of osseointegration – bone in-growth – in metal additively manufactured bone implants. 

Most additively manufactured implants are produced using Ti64. Simon Coulson, General Manager of the Additive Manufacturing Innovation Centre (AMIC) at Mohawk College, partnered with Professor Kathryn Grandfield and her research team at McMaster University to evaluate the suitability of Ti-553 for use in these implants; in particular, whether its topography could improve osseointegration.

Because Ti-553 is not commercially available for Laser Powder Bed Fusion (L-PBF) Additive Manufacturing, the team partnered with Mohawk College to produce the metal samples needed for the research study. Coulson and his team validated the Additive Manufacturing process parameters needed to produce components from the novel material and manufactured the samples for the study.

A student at Mohawk College’s AMIC works with metal additively manufactured samples in the lab (Courtesy Mohawk College)

“Our joint research with McMaster University has allowed us to make advances in the use of metal Additive Manufacturing for the medical sector,” Coulson told Metal Additive Manufacturing. “The development of new materials and surface modification techniques will hopefully improve patient outcomes during surgical implant procedures.”

The findings of the study, along with the parameters for Ti-553 for AM bone implants, were published in Nanotechnology. The study was authored by Chiara Micheletti, Bryan E J Lee, Joseph Deering, Dakota M Binkley, Simon Coulson, Asad Hussanain, Hatem Zurob and Kathryn Grandfield.

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As well as an extensive AM industry news section, this 226-page issue includes articles and reports on:

  • Metal AM in hydraulics: Aidro’s Valeria Tirelli on opportunities, applications, and joining Desktop Metal
  • I want to break free: The journey towards reducing or eliminating support structures
  • Simufact Additive: Accelerating the Metal Binder Jetting workflow with sintering simulation
  • Metal powder characterisation for Additive Manufacturing: Beyond state-of-the-art standards
  • A look at the future: What does the next decade hold for metal Additive Manufacturing?
  • Reducing residual stress with 500°C build chamber preheating for ‘first time right’ PBF-LB
  • Separating metal AM parts from the build plate – an underestimated challenge
  • How X-ray Computed Tomography is helping an AM service bureau to improve predictive-model based qualification
  • > More information

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