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    • List of Articles Morteza sadegh amalnik

      • Open Access Article

        1 - Intelligent Knowledge Based System Approach for Optimization of Design and Manufacturing for Abrasive Water Jet Machining
        Morteza Sadegh Amalnik
        A water jet machining is an industrial tool capable of cutting a wide variety of materials using a very high-pressure jet of water, or a mixture of water and an abrasive substance. This paper addresses the concept of the Intelligent knowledge base system (IKBS) for opti More
        A water jet machining is an industrial tool capable of cutting a wide variety of materials using a very high-pressure jet of water, or a mixture of water and an abrasive substance. This paper addresses the concept of the Intelligent knowledge base system (IKBS) for optimization of product design and manufacturing process for water jet machining in computer based concurrent engineering environment. The I KBS links with feature library. The design specification is acquired through a feature based approach. The IKBS links with material data base which holds attributes of more than 20 type of materials. It also links with abrasive data base which hold attributes of 8 types of abrasive, and also 4 type and size of machine. IKBS is also links with machine data base which hold machine parameters. For each design feature, IKBS provides information needed for design and manufacturing optimization. The IKBS can be used as an advisory system for designers and manufacturing engineers. It can be used as a teaching program for new water jet operators in computer based concurrent engineering environment. Manuscript profile
      • Open Access Article

        2 - Intelligent Knowledge Based System Approach for Optimization of Design and Manufacturing Process for Wire-Electrical Discharge Machining
        Morteza Sadegh Amalnik
        Wire electrical discharge machining (WEDM) is a method to cut conductive materials with a thin electrode that follows a programmed path. The electrode is a thin wire. Typical diameters range from .004" - .012" (.10mm - .30mm) although smaller and larger diameters are av More
        Wire electrical discharge machining (WEDM) is a method to cut conductive materials with a thin electrode that follows a programmed path. The electrode is a thin wire. Typical diameters range from .004" - .012" (.10mm - .30mm) although smaller and larger diameters are available. WEDM is a thermal machining process capable of accurately machining parts with varying hardness or complex shapes. WEDM process is based on electrical discharge machining (EDM) sparking phenomenon, utilizing the widely accepted non-contact technique of material removal. The hardness of the work piece material has no detrimental effect on the cutting speed. There is no physical contact between the wire and the part being machined. Rather, the wire is charged to a voltage very rapidly. This wire is surrounded by deionized water. When the voltage reaches the correct level, a spark jumps the gap and melts a small portion of the work piece. The deionized water cools and flushes away the small particles from the gap. This paper addresses the concept of WEDM and its parameters and development of an intelligent knowledge based system (IKBS) for WEDM in computer based concurrent engineering environment. The system links with a feature based CAD system in order to extract design data. The system is linked with databases. The machining cycle time, cost, material removal rate, and surface roughness of hole making are estimated for each selected design feature. The system provides useful information for product designers and manufacturing engineers and also advises manufacturing engineers to select optimum machining parameters. Manuscript profile
      • Open Access Article

        3 - Optimization of Spindle loading and Tool Wear for CNC Turning Machine by Using Intelligent System
        Morteza Sadegh Amalnik
        Intelligent knowledge based system (IKBS) is developed for optimizing dry CNC turning process using Taguchi method, CNC Machine, EN19 steel as the work piece material, andCutting Insert. Tool wear and spindle loading which are the machining parameters, spindle speed, fe More
        Intelligent knowledge based system (IKBS) is developed for optimizing dry CNC turning process using Taguchi method, CNC Machine, EN19 steel as the work piece material, andCutting Insert. Tool wear and spindle loading which are the machining parameters, spindle speed, feed rate, and depth of cut, areoptimized through the intelligent knowledge based system (IKBS). The experimental CNC turning machine is used to evaluate IKBS. IKBS is developed to determine the effect of the machining parameters such as tool wear and spindle loading. The simultaneous optimization is done by IKBS. Fourlevels of each machining parameter are used inexperimental verification on Model PTC 600, CNC lathe machinetool of PRAGA. The experimental verification designed based on Taguchi’s method is used to evaluate the effect of the machining parameters on individual responses of IKBS. The simultaneous optimization is done by intelligent knowledge based system. Theoptimization of complicated multi-performancecharacteristics is simplified through this approach. Tool wear and spindle loading are twocharacteristics on the basis of which the machining parameters, spindle speed, feed rate, loading and depth of cut, areoptimized through IKBS. Manuscript profile
      • Open Access Article

        4 - Development of Design and Manufacturing Support Tool for Optimization of Ultrasonic Machining (USM) and Rotary USM
        Morteza Sadeghamalnik Mohammad Rasoul Najafi
        Ultrasonic machining (USM) is a mechanical material removal process used to erode holes and cavities in hard or brittle work pieces by using shaped tools, high-frequency and an abrasive slurry. This paper addresses the concept and development of an expert system (ES) fo More
        Ultrasonic machining (USM) is a mechanical material removal process used to erode holes and cavities in hard or brittle work pieces by using shaped tools, high-frequency and an abrasive slurry. This paper addresses the concept and development of an expert system (ES) for hard and brittle material, such as glass, quartz, diamond, carbides, semi conducting materials, ceramic and graphite which can be manufactured with ultrasonic machine or rotary ultrasonic machining. The expert system is developed based on object oriented technique. The system links with a feature based CAD system in order to extract design data. The expert system is linked with databases. The machining cycle time, cost, penetration rate and productivity, of each selected design feature are estimated. The system provides useful information such as machining cycle time and cost, penetration rate and efficiency of machining of the selected design feature for product designers and manufacturing engineers to select optimum machining parameters. Also the expert system compares ultrasonic machining (USM) and rotary ultrasonic machining (RUSM) for the same design feature in concurrent engineering environment. Manuscript profile
      • Open Access Article

        5 - Controlling Electrochemical Machining By Using a Fuzzy Logic Approach
        Morteza Sadegh Amalnik
        New trends and the effect of key factors influence the quality of the holes produced by ECMprocesses. Researchers developed a fuzzy logic controller by adding intelligence to the ECMprocess. Maintaining optimum ECM process conditions ensures higher machining efficiency More
        New trends and the effect of key factors influence the quality of the holes produced by ECMprocesses. Researchers developed a fuzzy logic controller by adding intelligence to the ECMprocess. Maintaining optimum ECM process conditions ensures higher machining efficiency andperformance. This paper presents the development of a fuzzy logic controller to add intelligence tothe ECM process. An experimental ECM drilling was improved through the integration of a fuzzylogic controller into the existing control system. Matlab (Fuzzy Logic Toolbox) was used to build afuzzy logic controller system, which controls the feed rate of the tool and the flow rate of theelectrolyte. The objective of the fuzzy logic controller was to improve machining performance andaccuracy by controlling the ECM process variables. The results serve to introduce innovativepossibilities and provide potential for future applications of fuzzy logic control (FLC) in ECM.Hybrid controllers that integrate fuzzy logic into the control system allow for "human like"decision-making intelligence to be incorporated into ECM controllers. Manuscript profile
      • Open Access Article

        6 - Design of Computer Integrated Manufacturing System for Irankhodro Auto Industry
        Morteza Sadegh Amalnik
        Computer-integrated manufacturing (CIM), technologies are presented as solutions to manufacturing organizations, which need to perform well in all customer-related dimensions simultaneously. In the literature, CIM technologies providing such benefits as more frequent pr More
        Computer-integrated manufacturing (CIM), technologies are presented as solutions to manufacturing organizations, which need to perform well in all customer-related dimensions simultaneously. In the literature, CIM technologies providing such benefits as more frequent production changes, reduced inventory level, improved ability of producing complex parts with a high degree of accuracy and repeatability, considerable savings in scrap and rework, lower manufacturing lead-times. In this paper a general model and architecture of CIM for Irankhodro auto industry is designed. Also for each function or subsystem a model is design in CIM environment. The Model has three rings. First ring including three sections: data management, data representation and communication. Second ring is decision support system (DSS) including three sections: DSS for design, DSS for manufacturing and DSS for management. Third ring including all functional area including marketing, design, process planning, manufacturing, production planning and control, quality control, warehouse, management, Finance etc. Also For design of CIM system seven levels is considered including: at business level, at facility level, at shop floor level, at cell level, at workstation level, at machine level, at sensor level. Also CIM model of Iran is based on the seven layers of standard namely open system interconnection (OSI) defined by ISO. IranKhodro auto industry briefly introduce and its barrier and problem for implementation of CIM is discussed. The main objective of this paper is design of a CIM for Irankhodro Automotive Industry in Iran. Manuscript profile