Publications related to Toward a better understanding of glass gravity-feed micro-hole drilling with electrochemical discharges

Fiber Bragg grating-based thermometer for drill bit temperature monitoring

The temperature measurement of a drill bit during an implantology drilling process is proposed by using a fiber Bragg grating fitted inside the drill bit. Due to the rotational nature of the drilling process, a free-space fiber-optic rotary joint is used f ...

2019

Nanoscale Lithography and Thermometry with Thermal Scanning Probes

Samuel Tobias Howell, Samuel Zimmermann

Thermal scanning probe lithography (t-SPL) is an advanced lithography technique in which a heated atomic force microscope tip locally modifies a sample material. Due to the nanometer-sized tip apex diameter, t-SPL enables patterning of sub-10 nm structures ...

EPFL2018

Compact fibre Bragg grating-based thermometer for on-line temperature monitoring of drill bits

Luc Thévenaz, Kenny Hey Tow

In this communication, a novel compact fibre Bragg grating-based thermometer for on-line temperature monitoring of drill bits is reported. Our proposed technique can potentially be used to optimize any drilling process, requiring the use of small drill bit ...

SPIE2016

Cutting Force Modelling for Drilling of Fiber-Reinforced Composites

Mihai-Bogdan Lazar

Although used in a very large variety of applications, drilling is one of the most complex and least understood manufacturing processes. Most of the research on drilling was done in the field of metal cutting for mechanical parts since, in this case, high ...

EPFL2012

Part Programming to Realize Chatter Free and Efficient High Speed Milling

Saurabh Aggarwal

High speed milling (HSM) is the most known machining process due to its application in various industries. In milling, a rotating cutting tool removes a large amount of material along a predefined toolpath to manufacture the final part with a desired shape ...

EPFL2012

Selection of Optimal Cutting Conditions for Pocket Milling Using Genetic Algorithm

Paul Xirouchakis, Saurabh Aggarwal

Pocket milling is the most known machining operation in the domains of aerospace, die and mold manufacturing. In the present work, GA-OptMill, a Genetic Algorithm (GA) based optimization system for minimization of pocket milling time, is developed. A wide ...

Springer London Ltd2013

Cutting torque and tangential cutting force coefficient identification from spindle motor current

Paul Xirouchakis, Nenad Nesic, Saurabh Aggarwal

This article presents an enhanced methodology for cutting torque prediction from the spindle motor current, readily available in modern machine tool controllers. This methodology includes the development of the spindle power model which takes into account ...

Springer-Verlag2012

Experimental analysis of drilling fiber reinforced composites

Paul Xirouchakis, Mihai-Bogdan Lazar

In comparison with metals, long-fiber reinforced composites have a layered structure, with different properties throughout their thickness. When drilling such structures, internal defects like delamination occur, caused by the drilling loads and their unev ...

2011

Surgical preparation of bone-scaffold interface is critical for bone regeneration inside tissue engineering scaffold

Dominique Pioletti, Alireza Roshan Ghias

The goal of this study was to investigate if the preparation of implantation site has an impact on bone formation inside tissue engineering scaffolds. For this purpose, two different drilling techniques were used to create a hole in distal femurs of rats b ...

Wiley-Blackwell2011

A systematic characterization method for gravity-feed micro-hole drilling in glass with spark assisted chemical engraving (SACE)

Rolf Wüthrich, Hannes Bleuler, Ulrich Spälter

Gravity-feed drilling is the most commonly used method for micro-hole drilling in glass with spark assisted chemical engraving (SACE). This paper proposes a method allowing the systematic characterization of this drilling method. The influences of voltage, ...

2006

Polymer-based cantilevers with integrated electrodes

Radivoje Popovic, Giovanni Boero, Jürgen Brugger, Schahrazede-Lila Mouaziz

An innovative release method of polymer cantilevers with embedded integrated metal electrodes is presented. The fabrication is based on the lithographic patterning of the electrode layout on a wafer surface, covered by two layers of SU-8 polymer: a 10-um-t ...

Institute of Electrical and Electronics Engineers2006