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1 Introduction: computer numerical control
In today's world of emerged technology, computer numerical control (CNC) machine tool plays an important role to complete the production task to achieve the targeted goal of organization.
A CNC machine is considered as cost effective equipment that can be used to perform repetitious, difficult and unsafe manufacturing tasks with high degree of accuracy and a proper machine tool lies not only in increased production and delivery, but also in improved product quality, increased product flexibility and enhanced overall productivity ([1] Athawale and Chakraborty, 2010).
A proper machine tool selection has been very important issue for manufacturing firm due to the fact that improperly selected machine tool can negatively drop an affect the overall performance and the productivity of a manufacturing system. In addition, the outputs of manufacturing system (i.e. the rate, quality and cost) mostly depend on what kinds of machine tool selected and implemented.
CNC machines are the workhorses of the precision machining industry. CNC stands for computer numeric control. It is an industry standard programming language designed specifically for controlling high-precision mills, lathes, cutting and grinding machines. It is the progeny of the marriage between computer aided design (CAD) and computer aided machining (CAM) ( source: www.ehow.com/facts_5085202_cnc-machines.html).
CNC is an industry standard programming language designed specifically for controlling high-precision mills, lathes, cutting and grinding machines. It is the progeny of the marriage between CAD and CAM (source: www.ehow.com/facts_5085223_cnc-machines.html).
CNC is one in which the functions and motions of a machine tool are controlled by means of a prepared program containing coded alphanumeric data. CNC can control the motions of the work piece or tool, the input parameters such as feed, depth of cut, speed, and the functions such as turning spindle on/off, turning coolant on/off ( source: www.wings.buffalo.edu/...564/course-notes/cnc%20notes.pdf).
In today's world of emerged technology, the creation of problems of evaluation of most feasible CNC machine tool among numerous number of available choice has been become a critical factor to enhancing the effective utilization of resources, increase productivity and improve system flexibility. The evaluation of most feasible machine tool among the alternatives is a multi-criteria decision making (MCDM) problem.
MCDM is concerned with structuring and solving decision and planning problems involving multiple criteria. The purpose is...