In die manufacturing industries surface roughness is considered as a vital quality characteristic in order to retain the consumers’ satisfaction. On the other hand, manufacturers want to minimize the machining time which eventually reduces their cost. This research deals with an optimization problem to minimize the machining time (T) for end milling operation on hot die steel (H13), subject to ...

This paper presents the optimization of high speed milling process parameters with respect to the surface roughness of samples and the study of the Taguchi design application to surface quality in a CNC end milling operation. The Taguchi design is an efficient and effective experimental method in which a response variable can be optimized given various control factors using fewer resources than...

Now a days a manufacturing system is oriented towards higher production rate, quality, and reduced cost. Surface roughness is an index for determining the quality of machined products and is influenced by the cutting parameters. In die manufacturing industries Surface roughness of dies are considered as a vital quality characteristic. For the complex shapes of a die, three dimensional machining...

This paper presents the multiple response optimization of end milling parameter using grey based taguchi method. Experiments were designed and conducted based on L27 orthogonal array design The milling parameter were spindle speed, depth of cut, feed rate and pressurized coolant jet and the response was surface roughness. EN31, high carbon alloy steel which achieves a high degree of hardness an...

We give efficient solutions to transportation problems motivated by the following robotics problem. A robot arm has the task of rearranging m objects between n stations in the plane. Each object is initially at one of these n stations and needs to be moved to another station. The robot arm consists of a single link that rotates about a fixed pivot The link can extend in and out (like a telescop...

In this paper, a three-phase drive with a six-leg Voltage Source Inverter (VSI) and an open-end winding Interior Permanent Magnet Synchronous Machine (IPMSM) designed for the traction of an electric vehicle is studied in flux-weakening operation. The topology allows the functionality of a high power charger to be obtained, without adding any other supplementary power devices. On the other hand,...

Correspondence: andrea.garnero@ oecd.org OECD, 2, rue André Pascal -, 75775 Paris Cedex 16, France CEB, Université libre de Bruxelles, Brussels, Belgium Full list of author information is available at the end of the article Abstract: This paper provides a comprehensive portrait of the level and compliance with sectoral minimum wages in Italy between 2008 and 2015. The results show that wage flo...

In this paper an adaptive compliant motion control is presented for either constant admittance or constant force mode of operation. From a desired trajectory of the admittance and virtual position in the task space, a virtual trajectory is generated to follow the desired admittance. We are talking about admittance because at the interaction port of the end effector the force is measured and a g...

New versions of SCTP protocol allow the implementation of handover procedures in the transport layer, as well as the supply of a partially reliable communication service. An end-to-end communication architecture is proposed herein, using SCTP with the session initiation protocol, SIP, besides additional protocols. This architecture is intended to handle real-time multimedia applications with mo...

abstract   background: iatrogenic airway injury after endotracheal intubation and tracheotomy remains a serious clinical problem. in this study we reviewed post-intubation and traumatic tracheal stenosis in 47 patients with a special attention to the cause, hense surgical treatment of the stenosis was performed and the results compared with the literatures.   methods: since february 1995 throug...