In the present work a simple solution technique based on one dimensional golden section method has been used for finding out optimal cutting conditions for single pass face milling operation. The production cost per piece function is minimized under practical constraints of surface finish, cutting power, cutting force and limits of speed and feed per tooth. The common practice is to use some nonlinear programming method to find out solution to single pass problems. Geometric programming (GP) based methods have been preferred because the objective function is posynomial and constraints are...

In der vorliegenden Arbeit wurde eine einfache Lösungstechnik, die auf der Methode des eindimensionalen goldenen Schnitts basiert, verwendet, um optimale Schnittbedingungen für das Planfräsen in einem Durchgang zu finden. Die Funktion der Produktionskosten pro Stück wird unter den praktischen Einschränkungen der Oberflächengüte, der Schnittleistung, der Schnittkraft und der Grenzen der Geschwindigkeit und des Vorschubs pro Zahn minimiert. Auf geometrischer Programmierung (GP) basierende Methoden wurden bevorzugt, da die Zielfunktion posynomial ist und die Nebenbedingungen monomial...

In a Computer Aided Process Planning (CAPP) system, one of the important module is determination of optimal cutting conditions. In the proposed work, multipass face milling operations, consisting of few rough as well as finish pass have been considered. The production cost per piece has been minimized under practical constraints of cutting force, cutting power, surface finish etc. and limits of cutting speed, feed and depth of cut. The common practice is to use a non linear programming method for finding out optimum cutting conditions for each single pass machining. Instead a simple solution...

In a Computer Aided Process Planning (CAPP) system, one of the important modules is determination of optimal cutting conditions. It is suggested that a multipass turning operation can be broken into few rough as well as a finish pass turning problem for a given depth of cut. It is easy to solve a single pass turning problem for a given depth of cut. The production cost per piece has been minimized under practical constraints of cutting force, cutting power, surface finish, stable cutting region, chip-tool interface temperature etc. under limits of cutting speed and feed. The common practice...

Dans le présent travail, une technique de solution simple basée sur la méthode du nombre d'or unidimensionnel a été utilisée pour trouver les conditions de coupe optimales pour une opération de fraisage frontal en une seule passe. La fonction de coût de production par pièce est minimisée sous des contraintes pratiques de finition de surface, de puissance de coupe, de force de coupe et de limites de vitesse et d'avance par dent. La pratique courante consiste à utiliser une méthode de programmation non linéaire pour trouver une solution aux problèmes de passe unique. Les méthodes...

Multiphase fluid flows have applications in natural, scientific, and engineering systems. In today's scenario, it is very important to have an analysis of multiphase fluid flows for which Lattice Boltzmann law is used. For this, the second-order D2Q9 LBM model is used. Also for accurate analysis, the higher-order LBM models are used. During the analysis of multiphase fluids, a piecewise linear equation of state is adopted for nonideal fluids in which two equations are used for defining the mechanical and chemical equilibrium. Both the equation possesses two roots usually referred to as...