In this paper, a numerical model based on the finite difference method is presented to predict tool and chip temperature fields in continuous machining and time varying milling processes. Continuous or steady state machining operations like orthogonal cutting are studied by modeling the heat transfer between the tool and chip at the tool—rake face contact zone. The shear energy created in the p...

Surface roughness (Ra) is one of the most important requirements in machining process. In order to obtain better surface roughness, the proper setting of cutting parameters is crucial before the process take place. This research presents the development of mathematical model for surface roughness prediction before milling process in order to evaluate the fitness of machining parameters; spindle...

Significant cycle time saving can be achieved in 2.5-D milling by intelligently selecting tool sequences. The problem of finding the optimal tool sequence was formulated as finding the shortest path in a single-source single-sink directed acyclic graph. The nodes in the graph represented the state of the stock after the tool named in the node was done machining and the edges represented the cos...

Abstract In this article, the comprehensive review on application, and indeed, a comparative analysis dry machining of different types materials (Inconel, steel, aluminum, cast iron, magnesium advanced materials) used in (turning, drilling milling operations) were carried out light utmost works published literature. The work describes scientific findings past twenty years, including sustainable...

This paper introduces an adaptive fuzzy logic controller (AFLC) for precision contour machining which adjusts both input and output membership functions simultaneously. The parameters of the proposed controller are self-tuned in real-time according to a continuous measurement of the performance of the controller itself and estimated disturbance values. The adjustment of the membership functions...

The milling of thin-walled parts can become a seriously complex problem. In this work, the problem of the variable dynamics of a test part has been solved through the calculation of 3D stability lobes which add a third dimension with the tool position along the part, to the traditional depth of cut-spindle speed pair. First, the dynamics of a test part in several machining steps have been calcu...

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...

A parametric CNC (Computer Numerical Control) program was developed to make a test complex surface on a vertical milling machine equipped with an external fourth rotational axis. Parametric programming was used in order to get higher flexibility of the manufacturing process. The ball-end milling process was simulated and verified in a virtual model of the machine tool developed with the module ...

To solve the problems that the low rigidity thin-walled part is easy to deform in NC milling process and some parts of the complex surface is difficult to process, this paper points out the measures for increasing accuracy of thin-walled NC machining process from the selection of material and blank, the choice of machine tool, the determination and optimization of the clamping method, the choic...

For smaller mechatronic device, especially for micro Electronic system, a micro machining is a must. However, most investigations on vibration of a mill have been limited to the traditional type mill. In this article, vibration and dynamic characteristics of a micro mill were investigated in this study. The trend towards higher precision manufacturing technology requires producing miniaturized ...