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KBE-based stamping process paths generated for automobile panels

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Abstract

As automobile body panels are one kind of sheet metal part with groups of free form surfaces, the process planning is more complicated than common sheet metal stamping to implode effectively and practically. Based on KBE, new frameworks have been presented as intelligent master model at the system level and as procedure model at the activity level. In accordance with these frameworks, an intelligent CAPP system has been specifically developed. Based on feature technology, features have been extracted and represented by the object-oriented method. Stamping features and their parameters have been defined and extracted based on feature technology and stamping process rules. The whole product knowledge has been represented by frames which directly map to objects (or features) in the object-oriented sense. Relevant appropriate operations features have been assigned to stamping features of a product based on feature-operation criteria, parameters of the stamping feature and their correlativity. This assignment is a decision-making activity using a set of rules with a decision-making tree and model-based reasoning methods. With knowledge between operations, such as operations order constraint (do-after) and operations combination constraint, process paths have been improved based on relevant intelligent reasoning methods. Based on the relationships (preferred-to) between processes and machines/dies, the structure of die and machine for each process can be identified, since the process route has been determined. In this stamping process planning, the procedure and information have been controlled by a process control structure that is associative and integrated.

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Authors and Affiliations

  1. State Key Laboratory of Die and Mold Technology, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, People’s Republic of China

    Jinqiao Zheng, Yilin Wang & Zhigang Li

Authors
  1. Jinqiao Zheng
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  2. Yilin Wang
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  3. Zhigang Li
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Correspondence to Jinqiao Zheng.

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Zheng, J., Wang, Y. & Li, Z. KBE-based stamping process paths generated for automobile panels. Int J Adv Manuf Technol 31, 663–672 (2007). https://doi.org/10.1007/s00170-005-0239-y

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  • DOI: https://doi.org/10.1007/s00170-005-0239-y

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