General and flexible methodology and architecture for CAPP: GF-CAPP system

González, Francisco Sánchez-Montes; Rosado, P.

doi:10.1080/002075403100088471

Cited by 7 publications

(6 citation statements)

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“…Upon partially differentiating c1 with respect to v, equating to zero, and solving, we obtain the minimum unit cost cutting speed (vmin) as follows equality (2).…”

Section: Minimum Cost Per Piecementioning

confidence: 99%

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Expert System of Genarative Capp System in Function Cutting Speed

Rahimic¹,

Visekruna²

2016

Proceedings of the 27th International DAAAM Symposium 2016

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In this paper will be show model for expert system process planning with minimum cost per piece in function to cutting speed. The numbers variants depends of resource by manufactured system, machine labour and overhead rate and tools. The optimization model will be use in generative CAPP system for rotation parts. The Mathematically model devolpment for minimum cost per piece, which have all parameters of process planning. For determining machining and manufacturing tims importing for maximum profit, what is leading aim all manufacturing of industry. The optimal of cutting speed determining which to receive maximum profit. The maximum profit introducing combination of criterion minimum cost per piece variant process planning and criterion optimal of cutting speed.

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“…Upon partially differentiating c1 with respect to v, equating to zero, and solving, we obtain the minimum unit cost cutting speed (vmin) as follows equality (2).…”

Section: Minimum Cost Per Piecementioning

confidence: 99%

“…CAPP considered a crucial link between Computer -Aided Design (CAD) and Computer -Aided Manufacturing (CAM) [2]. Research of over 30 years in CAPP has resulted in a wealth of knowledge on CAPP and many experimental and commercial CAP'P systems have been developed as a result.…”

Section: Introductionmentioning

confidence: 99%

Expert System of Genarative Capp System in Function Cutting Speed

Rahimic¹,

Visekruna²

2016

Proceedings of the 27th International DAAAM Symposium 2016

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“…From a broad perspective, the generality of a CAPP system is based on four basic aspects: its architecture, its methodology, the functions that make it up and the information models used (Wong and Siu 1995, Gonza´lez et al 1998, Kang et al 1998, Gonza´lez and Rosado 2003. The information models -both for the product as well as for the production resources -have been shown to be one of the key aspects in achieving this generality (Zhang et al 1999, Bagshaw and).…”

Section: Introductionmentioning

confidence: 97%

“…This paper describes the CAPP information model used in the GF-CAPP system (Gonza´lez and Rosado 2003) for a general description geared to process planning. This model represents the machined parts from a CAPP perspective and within the work domain of assigning processes, operations and machines.…”

Section: Introductionmentioning

confidence: 99%

General information model for representing machining features in CAPP systems

González

Rosado

2004

International Journal of Production Research

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Today, the generality of computer-aided process planning (CAPP) systems and their standardization do not achieve satisfactory standards levels for industry. One of the major causes here is the difficulty of integration with computeraided design applications, due mainly to the product model used. It is therefore necessary to identify models that are general with regard to the products, but at the same time suitable for CAPP. A product model suitable for CAPP must represent the product conceptually, enabling the development of process planning functions that operate with manufacturing concepts. It is therefore necessary to develop product information models using this philosophy. The present paper focuses on this problem and proposes an information system for representing the product for internal CAPP use. It is geared towards representing all of the part information (necessary for manufacturing) integrally with the machining features and under the same concept as these features. To this end, one of the main characteristics of the model is the absence of conventional geometric entities. The application domain of the model proposed is the assignment of processes and machines in machined parts. The GF-CAPP system has revealed that the advantages of using this type of product model in CAPP are its generality with regard to the product and the ease of developing functional procedures that are general, simple and independent.

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“…With keener global competition and the requirement of delivering new products more efficiently, the development of generative systems is imperative to facilitate process planning with higher flexibility and adaptability. In the last two decades, a significant amount of relevant research for developing generative systems has been reported [2][3][4][5][6]. *Corresponding author: Department of Mechanical Engineering, University of Bath, Claverton Down, Bath BA2 7AY, UK.…”

Section: Introductionmentioning

confidence: 99%

Operation sequencing optimization for five-axis prismatic parts using a particle swarm optimization approach

Guo

Mileham

Owen

et al. 2009

Proceedings of the Institution of Mechanical Engineers, Part B:

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Operation sequencing is one of the crucial tasks in process planning. However, it is an intractable process to identify an optimized operation sequence with minimal machining cost in a vast search space constrained by manufacturing conditions. Also, the information represented by current process plan models for three-axis machining is not sufficient for five-axis machining owing to the two extra degrees of freedom and the difficulty of set-up planning. In this paper, a representation of process plans for five-axis machining is proposed, and the complicated operation sequencing process is modelled as a combinatorial optimization problem. A modern evolutionary algorithm, i.e. the particle swarm optimization (PSO) algorithm, has been employed and modified to solve it effectively. Initial process plan solutions are formed and encoded into particles of the PSO algorithm. The particles ‘fly’ intelligently in the search space to achieve the best sequence according to the optimization strategies of the PSO algorithm. Meanwhile, to explore the search space comprehensively and to avoid being trapped into local optima, several new operators have been developed to improve the particle movements to form a modified PSO algorithm. A case study used to verify the performance of the modified PSO algorithm shows that the developed PSO can generate satisfactory results in optimizing the process planning problem.

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General and flexible methodology and architecture for CAPP: GF-CAPP system

Cited by 7 publications

References 0 publications

Expert System of Genarative Capp System in Function Cutting Speed

Expert System of Genarative Capp System in Function Cutting Speed

General information model for representing machining features in CAPP systems

Operation sequencing optimization for five-axis prismatic parts using a particle swarm optimization approach

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