Concept

Découpe laser

Publications associées (188)

Design methodology and numerical optimization of ultrasonic transducers for spinal surgery

Nowadays, the general trend towards to minimally invasive interventions is present in all the medical domains. For the surgical intervertebral spinal disc cutting or removal domain, it is particularly a necessity because the manual methods currently employ ...

EPFL2009

NC tool path evaluator and generator for high speed milling

Sandeep Dhanik

Milling is a most common type of material removal process by rotating tools to create a variety of features on a part. The material is removed in a controlled way by sweeping a rotating cylindrical tool along the specific trajectory known as milling tool p ...

EPFL2009

Spectroscopy of Protonated Peptides Assisted by Infrared Multiple Photon Excitation

Thomas Rizzo, Ulrich Lorenz, Monia Guidi, Georgios Papadopoulos

We report here a new technique for spectroscopic studies of protonated, gas- phase biomolecules and demonstrate its utility by measuring highly-resolved electronic and infrared spectra of peptides of up to 17 amino acids. After UV excitation of an aromatic ...

2009

Characterisation of Laser Welds, between Nitinol and Stainless Steel Wires

Michel Rappaz, Aïcha Hessler-Wyser, Jonas Vannod

Nickel-Titanium (NiTi) shape memory alloys are often used in medical component devices, for instance as guide wires for neurological surgery applications. Manufacturing of such devices becomes more and more challenging, especially considering the need to j ...

2009

Characterisation of Laser Welds, between Nitinol and Stainless Steel Wires

Michel Rappaz, Aïcha Hessler-Wyser, Jonas Vannod

2009

Large-Scale PIV surface flow measurements in shallow basins with different geometries

Anton Schleiss, Sameh Ahmad Kantoush

Shallow depth flow fields and low velocity magnitudes are often challenges for traditional velocity measuring instruments. As such, new techniques have been developed that provide more reliable velocity measurements under these circumstances. In the presen ...

2009

Large-scale PIV surface flow measurements in shallow basins with different geometries

Anton Schleiss, Sameh Ahmad Kantoush

2009

Mill-cut: a neural network system for the prediction of thermo-mechanical loads induced in end-milling operations

Paul Xirouchakis, Jitender Kumar Rai, Louis Villedieu

This paper presents the design and implementation issues of a generalized system called mill-cut, developed for the prediction of cutting forces and temperature in end-milling operations. Based on an ANN approach, mill-cut predicts all the three components ...

Springer-Verlag2008

Surface and Mirror Twin Grain Boundary Segregation in Nd:YAG: An Atomistic Simulation Study

Paul Bowen, Ulrich Aschauer

Ceramic lasers have advantages such as better optical homogeneity, cheaper production, and more freedom in shape compared with monocrystalline lasers. However, equal or better laser performances are required. Interface segregation is important as ceramics ...

2008

Atomistic simulation in powder technology

Ulrich Aschauer

Despite many years of intensive research there still remain many unresolved questions in powder and ceramic technology. A majority of these issues are linked to interfacial phenomena of atomic scale origin, which makes their experimental investigation very ...

EPFL2008

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