Papers by Keyword: Manufacturing Process

Abstract: The aim of this paper is to study the issues of the relationship between ERP implementation and BPR for manufacturing. This study pay attention to the literatures related to the relationship between BPR and ERP implementation, which were addressed by the researchers and practitioners. As both ERP and BPR follow organizational change, the researchers found that organizations must take a critical look on the collaboration among software vendors, consultants, processes, and organizations. Fine-tuning the integration can help successful BPR and ERP implementation.

Abstract: In the study, novel fabrication processes of functionally-graded (FG) syntactic foams were developed to control distribution of the mechanical properties in the FG foams for highly impact energy absorption. In order to control mechanical properties, the density distributions in FG foams were graded by floating phenomenon of the light-weight micro-balloons in matrix resin during curing process. The density distribution in the foam could be controlled by adjusting the average volume fraction and the turning procedure of the mold before grading the micro-balloons in the foam. The compression tests of the fabricated FG foams suggested that the foams had high absorption of impact energy since the foams collapsed progressively due to the grading of the density distribution.

Abstract: The paper deals with the rheological properties of epoxy resin additivated with organically modified montmorillonites, carbon nanotubes and nanocarbon. The paper also presents the influence of nanoadditives over composites mechanical properties. The epoxy polymer is diglycidyl ether of bisphenol A (DGEBA) and the curing agent is an aliphatic tetraamine. Organically modified montmorillonites Cloisite 30B and Cloisite 93A, MWCNTs and laser synthesized nanocarbon were used to synthesize nanocomposites by dispersing each in an epoxy resin. The dispersion was achieved through mechanical and sonic methods. The epoxy resin additivated with nanosized fillers was rheologically tested to study the dispersion influence. The sonic dispersion of nanoadditives is observed to drastically influence the rheological behavior of the suspensions. Newtonian fluid behavior disappears as the additive loading increases. The work mentions the influence of nanoadditives on the manufacturing process of epoxy /glass fibre and epoxy/ carbon fibre laminated composites.

Abstract: Optimizing manufacturing process modeling is critical to improving the efficiency and quality of manufacturing. However, manufacturing processes in general can be very complicated. A manufacturing process may involve (a) transforming a material into a new form, (b) combining different materials to form a new object, and (c) retrieving a certain part from a material as a new entity. All those activities could be confusing because many intermediate objects that exist only for a short period during the manufacturing process may have no formal names. To solve this problem, this paper proposes that composition trees (CT) can be successfully used to model manufacturing processes. Composition trees are parts of the formal notation in behavior engineering (BE), which is an innovative approach to the development of large software systems. For a composition tree, its characteristics of being intuitive, expressive and formal give it many advantages over other formal and informal modeling languages in software engineering. This paper uses a cooking case study to demonstrate how to use a composition tree model manufacturing processes. It is argued that the method could be applied to process engineering to good effect.

Abstract: Ergonomics is the study of the job, equipment and workplace in order to make them suitable and convenient to the workers. At an appliance manufacturing company the ergonomic rating of a worker’s hands and arms movement was higher above the desired value. Moreover, there were accidents that occurred on these lines sometimes. This paper analyzed the current scenario and developed a new design carried out on manufacturing Line 1 and Line 2 at that company to make the platform and jig more ergonomic to the operators.

Abstract: In the turning of a shaft with a step of specified corner R, it is important whether the corner radiuses of the turning insert is the same as the specified corner R or lower than it. A turning tool with a large corner radius cannot adapt to cutting a shaft with a step of specified corner R. In this study, the surface roughness, cutting force, and tool wear were experimentally investigated in order to clarify the cutting performance of the turning insert with a three-arcs-shaped finishing edge. The machined surface of the insert with a three-arcs-shaped finishing edge was better than that of the normal insert. The wear progress of the insert with an arc-shaped finishing edge was slightly slower than that of the normal insert. The cutting force of the insert with an arc-shaped finishing edge was almost the same as that of the normal insert.

Abstract: Succade wastewater, which was produced in manufacturing process, was treated with two kinds of coagulating agents PAC and ferrous sulfate. The influences of pH, concentration of coagulating agent on COD value, turbidity have been studied. The results of the experiments have shown that for ferrous sulfate, there is an obvious positive correlation, but no significant relation with turbidity removal rate was presented in the statistics; As for PAC, the turbidity declined significantly as PAC dosage increases, only when pH=5 that COD removal rate shows a clear positive correlation with PAC dosage.

Abstract: This paper presents a methodology for the incorporation of a Virtual Reality development applied to the teaching of manufacturing processes, namely the group of machining processes in numerical control of machine tools. The paper shows how it is possible to supplement the teaching practice through virtual machine-tools whose operation is similar to the 'real' machines while eliminating the risks of use for both users and the machines.

Abstract: The implementation of virtual practices, to complement traditional practices has turned out to be an efficient tool to solve the classical problems occurring in the teaching of technological subjects, such as the manufacture engineering field. In the current work, the integration of virtual practice sets is analysed by means of an unified platform, as an extra contribution to previous developments, generating the Manufacturing Virtual Laboratory of the Department of Manufacturing Engineering of the University of Malaga.

Abstract: Owing to the diversity of green evaluation index and multiple-factor related to the process evaluation, existing green evaluation of manufacturing process lacks a set of effective knowledge management model. It leads to the high cost and inefficiency of analysis and evaluation process. A green evaluation model for manufacturing process based on multi agent is presented. Based on the model, green evaluation support system of manufacturing process based on multi agent is developed with the knowledge base introduced. The implementation strategy of green evaluation for manufacturing process is implemented by the closed-loop knowledge chain, which is composed of knowledge mining, knowledge transferring, knowledge application and knowledge feedback. The feasibility of this system is verified by an instance of the valve stem manufacturing process in a valve factory.