نتایج جستجو برای: machine tool optimization

تعداد نتایج: 896673  

Journal: :DEStech Transactions on Engineering and Technology Research 2018

The field of optimization and machine learning are increasingly interplayed and optimization in different problems leads to the use of machine learning approaches‎. ‎Machine learning algorithms work in reasonable computational time for specific classes of problems and have important role in extracting knowledge from large amount of data‎. ‎In this paper‎, ‎a methodology has been employed to opt...

2013
Joseph Priestly

Electrical Discharge Machine (EDM) is especially used for the manufacturing of 3-D complex geometry and hard material parts that are extremely difficult-to-machine by conventional machining processes. In this paper authors review the research work carried out in the development of die-sinking EDM within the past decades for the improvement of machining characteristics such as Material Removal R...

Journal: :J. Inf. Sci. Eng. 2010
Qing Wu Sanyang Liu Leyou Zhang

Semi-supervised Support vector machine has become an increasingly popular tool for machine learning due to its wide applicability. Unlike SVM, their formulation leads to a non-smooth non-convex optimization problem. In 2005, Chapelle and Zien used a Gaussian approximation as a smooth function and presented ∇TSVM. In this paper, we propose a smooth piecewise function and research smooth piecewis...

Journal: :Robotica 2009
Qingsong Xu Yangmin Li

In this paper, the optimization of architectural parameters for a class of translational parallel kinematic machine (PKM) is performed with the particle swarm optimization (PSO) to achieve the best accuracy characteristics. The conventional error transformation matrix (ETM) is derived based on the differentiation of kinematic equations, and a new error amplification index (EAI) over a usable wo...

Journal: :Lecture notes in production engineering 2023

Abstract Knowledge of thermal interactions with the environment is essential for improving performance machine tools. Therefore, it necessary to detect and quantify convective heat flows at tool surfaces, that occur in workspace as a result cutting fluid use or outside due active air flow. Thin-film sensors made shape memory alloys integrated small temperature are suitable detecting very fine p...

2017
Sylvain Lavernhe Christophe Tournier Claire Lartigue

This paper deals with a predictive model of kinematical performance in 5-axis milling within the context of High Speed Machining. Indeed, 5-axis high speed milling makes it possible to improve quality and productivity thanks to the degrees of freedom brought by the tool axis orientation. The tool axis orientation can be set efficiently in terms of productivity by considering kinematical constra...

2009
Sylvain Lavernhe

This paper deals with a predictive model of kinematical performance in 5-axis milling within the context of High Speed Machining. Indeed, 5-axis high speed milling makes it possible to improve quality and productivity thanks to the degrees of freedom brought by the tool axis orientation. The tool axis orientation can be set efficiently in terms of productivity by considering kinematical constra...

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