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Characterization of Titanium Alloy (Ti6Al4V) Obtained by Additive Manufacturing

Centro de Tecnologia da Informação Renato Archer-Jorge Vicente Lopes Da Silva
Universidade Federal do ABC-Reyolando Lopes Rebello Da Fonseca Brasil, Rafael Celeghini Santiago
  • Technical Paper
  • 2019-36-0112
Published 2020-01-13 by SAE International in United States
The development of additive manufacturing processes (3D printing), applied to metal alloys, is in line with the industry's current need for optimization, cost and development time reduction, allowing the construction of representative prototypes with equivalent materials / mechanical characteristics and customized end products, such as prostheses and brake system calipers, for which Ti6Al4V alloy has wide application due to biocompatibility and resistance. In addition, the need for more resilient materials is becoming ever greater at same time that failures need to be avoided. The occurrence of failures in structural components generates consumer dissatisfaction, which can result in serious accidents and the use of numerical tools during the project contributes to its prediction. For this, it is necessary to know the structural characteristics of the material resulting from the printing processes to guarantee robust designs. Currently there are few available information regarding mechanical and micro-structural proprieties on titanium alloy Ti6Al4V obtained by 3D printing process compared with other process. Thus, through physical tests of specimens according to ASTM A370-08a and microstructural evaluations, became possible the alloy…
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Implantable Cancer Traps Could Provide Earlier Diagnosis, Help Monitor Treatment

  • Magazine Article
  • TBMG-35628
Published 2019-12-01 by Tech Briefs Media Group in United States

Invasive procedures to biopsy tissue from cancer-tainted organs could be replaced by simply taking samples from a tiny “decoy” implanted just beneath the skin, University of Michigan researchers have demonstrated in mice.

Bioelectronic Implant Could Prevent Opioid Deaths

  • Magazine Article
  • TBMG-35630
Published 2019-12-01 by Tech Briefs Media Group in United States

Researchers are developing a novel, implantable device that can sense the effects of a potentially fatal level of ingested opioids and then automatically and immediately deliver a life-saving dose of naloxone.

Bioresorbable Patch Offers New Alternative for Arterial Healing

  • Magazine Article
  • TBMG-35632
Published 2019-12-01 by Tech Briefs Media Group in United States

When a patient experiences 70 percent or greater stenosis in the carotid artery — a condition that can cause lack of cerebral blood flow, stroke, and in some cases, death — surgeons perform a procedure known as carotid endarterectomy (CEA) to remove the plaque causing the artery stenosis.1,2 The procedure consists of a longitudinal incision made from the common to the internal carotid artery, allowing for removal of the plaque that deposits in the bifurcation.

VR Helps Amputees ‘Feel’ Prosthetic Limbs

  • Magazine Article
  • TBMG-35634
Published 2019-12-01 by Tech Briefs Media Group in United States

Scientists have shown that amputees can actually be convinced that the prosthetic hand belongs to their own body. They do this by going beyond the “seeing is believing” idiom based on established research on how the brain identifies what belongs to its own body. Instead of using the sense of sight alone, they used an astute combination of two senses: sight and touch.

Implantables to Augment Missing Body Tissue

  • Magazine Article
  • TBMG-35509
Published 2019-11-01 by Tech Briefs Media Group in United States

Kanfit3D has entered into a joint research partnership with the University of Brescia (Italy). The project will develop unique implantable structures, using additive layer manufacturing (ALM) technologies, for replacing or augmenting missing body tissue with customized surface treatments for improved osseointegration to achieve a better biological response within a reduced healing time.

Smart Electronic Skin for Robots and Prosthetics

  • Magazine Article
  • TBMG-35452
Published 2019-11-01 by Tech Briefs Media Group in United States

Humans use the sense of touch to accomplish almost every daily task such as picking up a cup of coffee or shaking someone’s hand. Without it, humans can even lose their sense of balance when walking. Similarly, robots need to have a sense of touch in order to interact better with humans but robots today still cannot feel objects well.

Simulating Softness for Haptic Interfaces

  • Magazine Article
  • TBMG-35456
Published 2019-11-01 by Tech Briefs Media Group in United States

Researchers have developed a formula that enables them to recreate different levels of perceived softness. Based on the results from their experiments, they created equations that can calculate how soft or hard a material will feel based on material thickness, Young’s modulus (a measure of a material’s stiffness), and micropatterned areas. The equations can also do the reverse and calculate, for example, how thick or micropatterned a material needs to be to feel a certain level of softness.

A Smart Artificial Hand for Amputees Merges User and Robotic Control

  • Magazine Article
  • TBMG-35516
Published 2019-11-01 by Tech Briefs Media Group in United States

EPFL scientists are developing new approaches for improved control of robotic hands — in particular for amputees — that combines individual finger control and automation for improved grasping and manipulation. This interdisciplinary proof-of-concept between neuroengineering and robotics was successfully tested on three amputees and seven healthy subjects. The results are published in a recent issue of Nature Machine Intelligence.

Method Makes Transistors and Electronic Devices from Thread

  • Magazine Article
  • TBMG-35467
Published 2019-11-01 by Tech Briefs Media Group in United States

A transistor has been made from linen thread, enabling the creation of electronic devices made entirely of thin threads that could be woven into fabric, worn on the skin, or implanted surgically for diagnostic monitoring. The flexible electronic devices could enable a range of applications that conform to different shapes and allow free movement without compromising function.