Modelling and simulation of manufacturing process chains

Afazov, Shukri

doi:10.1016/j.cirpj.2012.10.005

Cited by 49 publications

(25 citation statements)

References 36 publications

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“…The CLData file is not directly usable in a production machine control system as an intermediary to create the CNC program, but it can be the input file for the program, transforming data entered into the structure corresponding to the machine control system. These programs [11,18] are called postprocessors. Postprocessors transform general information directly from CLData [6,19] and the output is usable CNC program for the selected machine.…”

Section: Cad/cam Technology In Machining and Methodology Of Usagementioning

confidence: 99%

“…The CAM produces program from this model [10,16]. The usage of CAD/CAM is considered to be the most effective solution for the implementation of technological preparation of production of complex shaped parts.…”

Section: Cad/cam Technology In Machining and Methodology Of Usagementioning

confidence: 99%

“…Universal application of computer aided systems brings significant benefits. CAM is most closely associated with functions in manufacturing engineering, such as process planning and numerical control (CNC) part programming [10,13,15]. Production of parts with complex shapes [12] with these technologies largely depends on the compressibility and the correct choice of conditions in sheet metal forming and milling.…”

Section: Introductionmentioning

confidence: 99%

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Computer Aided Design and Manufacturing Evaluation of Milling Cutter when High Speed Machining of Hardened Steels

Majerík¹,

Jambor²

2015

Procedia Engineering

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This paper presents the influence of CAD modelling and CAM simulation advanced techniques for hard milling technology. The main aim of simulations is the ability and importance to improve and optimize hard milling process even before the real production of its own products, because their manufacturing process is rather expensive. The reached results present us roughing and finishing process of hard milling and milling strategy or generation of tool-paths in CATIA V5. All simulations of milling experiments show that the proposed clear-up tool path works well in the real cutting process and can improve the machining efficiency of the machining process. At the same time, the manufacturing must have the advanced process equipment and method due to the requirements of the design performance and machining efficiency. Finally, hard milling simulations in CAD/CAM system CATIA V5 were performed in order to determine and evaluation of suitability of the proposed shapes of the hard milling product.

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Section: Cad/cam Technology In Machining and Methodology Of Usagementioning

confidence: 99%

Section: Cad/cam Technology In Machining and Methodology Of Usagementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Computer Aided Design and Manufacturing Evaluation of Milling Cutter when High Speed Machining of Hardened Steels

Majerík¹,

Jambor²

2015

Procedia Engineering

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“…Anderson [36] noted that organizational complexity has been traditionally viewed as a structural variation rate. The concept of complexity has also been treated in manufacturing research by analyzing operations processes (see, e.g., [6,37,38]). Several research works were conducted on a relation between complexity and manufacturing strategy [39][40][41].…”

Section: Related Workmentioning

confidence: 99%

“…The principle of his method is based on relation between products and machines according to the scheduled plan. So, the previous equation (2) was modified as follows [38]:…”

Section: Metric By Frizellementioning

confidence: 99%

Novel Complexity Indicator of Manufacturing Process Chains and Its Relations to Indirect Complexity Indicators

Modrák

Šoltysová

2017

Complexity

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Manufacturing systems can be considered as a network of machines/workstations, where parts are produced in flow shop or job shop environment, respectively. Such network of machines/workstations can be depicted as a graph, with machines as nodes and material flow between the nodes as links. The aim of this paper is to use sequences of operations and machine network to measure static complexity of manufacturing processes. In this order existing approaches to measure the static complexity of manufacturing systems are analyzed and subsequently compared. For this purpose, analyzed competitive complexity indicators were tested on two different manufacturing layout examples. A subsequent analysis showed relevant potential of the proposed method.

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Development of a hybrid model for the prediction of shape deviations in milling

Gulpak

Sölter

2016

Materialwissenschaft Werkst

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The productivity in machining of high precision components is limited among others by the achievable geometric accuracy. Shape deviations arise due to several mechanisms of which residual stresses and a varying material removal due to thermal expansion have been incorporated in a proposed hybrid model. The model is based on two initially separated sub models which require a set of experimentally obtained input parameters. Both sub models utilize the finite element method. Sub model 1 calculates the mechanic response of the workpiece loaded with a near surface residual stress field (source stresses) resulting from the interaction of tool and workpiece. Sub model 2 calculates the thermal expansion of the workpiece utilising a three-dimensional simulation of a moving surface heat source. The resulting inhomogeneous material removal is superimposed with the calculated shape deviations from sub model 1. This work focuses on distortion caused by machining induced residual stresses which are modelled as source stresses (sub model 1). These so called source stresses can be calculated directly from the bending and torsion of machined specimens and represent the distortion potential of the face milling process. The results demonstrate a pronounced correlation between the obtained source stresses and the width of cut a e . They further indicate that a separation of the effects resulting from the removal of material containing workpiece inherent residual stresses and from the newly generated residual stresses in the machined surface layer is required for the calculation of machining induced residual stresses.In der spanenden Bearbeitung von Hochpräzisionskomponenten ist die Produktivität u. a. durch die geforderten Maß-und Formtoleranzen begrenzt. Formabweichungen, welche die Toleranzen überschreiten können, entstehen dabei aufgrund unterschiedlicher Mechanismen, von denen zwei, die Entstehung von Eigenspannungen und der ungleichmäßige Materialabtrag durch thermische Dehnungen, in dem vorgeschlagenen Hybridmodell berücksichtigt werden. Das Hybridmodell basiert auf zweien zunächst getrennten Submodellen, welche mithilfe von Zerspanexperimenten parametriert werden. Die Berechnung erfolgt mit der Methode der Finiten Elemente. Im Submodell 1 wird die mechanische Antwort des Werkstücks auf bearbeitungsinduzierte Eigenspannungen (Quellspannungen) berechnet, welches aus randschichtnahen plastischen Verformungen des Bearbeitungsprozesses resultiert. Im Submodell 2 werden thermische Dehnungen des Werkstücks in einer dreidimensionalen FE-Simulation einer bewegten Wärmequelle berechnet. Der daraus resul-

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Modelling and simulation of manufacturing process chains

Cited by 49 publications

References 36 publications

Computer Aided Design and Manufacturing Evaluation of Milling Cutter when High Speed Machining of Hardened Steels

Computer Aided Design and Manufacturing Evaluation of Milling Cutter when High Speed Machining of Hardened Steels

Novel Complexity Indicator of Manufacturing Process Chains and Its Relations to Indirect Complexity Indicators

Development of a hybrid model for the prediction of shape deviations in milling

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