Surface roughness is often considered the main purpose in contemporary computer numerical controlled CNC machining industry. Most existing optimization researches for CNC finish turning were either accomplished within certain manufacturing circumstances or achieved through numerous equipment operations. Therefore, a general deduction optimization scheme is deemed to be necessary for the industr...

The paper presents a new decision method and a decision support system (DSS) for solving multicriteria classification problems: how to allocate alternatives having evaluations in the terms of several criteria into ordered decision classes. In contrast to previous statements of this problem, a relatively small subset of alternatives is presented for classification. The efficiency of the method i...

A tool adaptor with built-in active vibration damping device to dynamically stabilize the turning process is presented in this paper. It can be used in standard CNC-lathes and allows the usage of off-the-shelf tool heads. The vibration compensation system is based on a multilayer piezoactuator that is in collocation with a piezoelectric force sensor. An analogue controller based on the integral...

Artificial intelligent methods are increasingly used within computer integrated manufacturing (CIM) applications. Real-time expert system environments are good tools to develop intelligent controllers. The first part of this paper summarises some problems of the application of artificial intelligence and expert systems within the CIM area. Then a new open European CNC architecture (OSACA) is in...

Many manufacturing industries involve machining operations. In metal cutting the turning process is one of the most fundamental cutting processes used. Surface finish and dimensional tolerance, are used to determine and evaluate the quality of a product, and are major quality attributes of a turned product. In this paper experimental work has been carried out for the optimization of input param...

Project selection problem has been largely discovered in extant literature, and attracted considerable attentions of academics and purchasing managers. Practical project selection problem is typically evolved of multi-criteria and a committee of experts. Given the exact values of the input data, certain expert may generate uncertain evaluation results on a project, because the exact weights ass...

The article describes a hierarchical decision making framework for the evaluation and improvement/redesign of composite systems. The framework is based on Hierarchical Morphological Multicriteria Design (HMMD) and corresponding morphological clique problem which realize “partitioning/synthesis macroheuristic”. The system evaluation process consists in hierarchical integration of expert judgment...

In-process measurement and control of CNC machines can improve machining accuracy while increasing productivity and eliminating waste in a cost effective way. This paper describes an in-process measurement and control system called radial error feedback geometric adaptive control (REFGAC) system for bar turning in CNC turning centers. REFGAC system was design to compensate for the radial error ...