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Experimental Characterisation of Tool Hardness Evolution Under Consideration of Process Relevant Cyclic Thermal and Mechanical Loading During Industrial Forging Read chapter Read first chapter

2021 | OriginalPaper | Chapter

Equal-Channel-Angular-Swaging for the Production of Medical Implants Made of Fine-Grained Titanium

Authors : L. Kluy, F. Chi, P. Groche

Published in: Production at the leading edge of technology

Publisher: Springer Berlin Heidelberg

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Abstract

Demands of the aging society shift the focus of production engineering towards challenges in medical technology. An increasing number of people are equipped with implants, but incompatibilities can lead to implant loosening. These incompatibilities can be avoided by implants based on fine-grained titanium which stimulate interactions between implant and bone tissue and thus activate bone healing.
The continuous production process Equal-Channel-Angular-Swaging (ECAS) is applied to achieve grain refinement in titanium rods. Shear strains during forming are therefore numerically investigated. Processing of titanium with conventional ECAS leads to unfilled die cavity. Thus undesired bending occurs, both in simulation and experiment. The bending stresses result in material failure. Additionally, the achieved shear strains are inhomogeneously distributed in the cross-section.
It is shown that a hydrostatic stress state created by counter pressure improves the failure limit, yields in more homogenous shear strain distributions and enables a continuous production of fine-grained titanium.

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previous chapter Investigation on Noise Reduction During Cutting of High-Strength Materials Based on Machine Acoustic Simulation
next chapter Numerical Development of a Tooling System for the Co-extrusion of Asymmetric Compound Profiles on a Laboratory Scale
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Metadata
Title
Equal-Channel-Angular-Swaging for the Production of Medical Implants Made of Fine-Grained Titanium
Authors
L. Kluy
F. Chi
P. Groche
Copyright Year
2021
Publisher
Springer Berlin Heidelberg
Book
Production at the leading edge of technology

Print ISBN: 978-3-662-62137-0

Electronic ISBN: 978-3-662-62138-7

Copyright Year: 2021

DOI
https://doi.org/10.1007/978-3-662-62138-7_6

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