A multi-source similar subparts based NC process fusion and regrouping approach

Xu, Chengdong; Zhang, Shusheng; Zhang, Feng; Zhang, Liu; Wang, Renche

doi:10.1007/s00170-018-3112-5

“…However, most of the current process reuse methods follow the "1-nearest neighbor criterion", that is, only the process instances with the highest similarity in the retrieval results are used, and the process plan is changed to meet the processing requirements of the query geometry, which leads to the ineffective utilization of multi-source process schemes. Considering these, Xu et al [18] used the grey correlation analysis method to obtain the adaptability of NC process values of similar instances relative to query features, so as to support the fusion of NC process elements of similar instances to generate NC process schemes with query features. However, this method does not integrate the macro process, and is easy to fall into local optimization, so the practicability of the generated process scheme is still not strong.…”

Section: Nc Process Reusementioning

confidence: 99%

“…Step5. According to formula (18), judge whether to accept the new machining operation sequence qi', if accepted, then qi+1=qi'; otherwise, qi+1=qi;…”

Section: Machining Area Sequence Optimization Based On Chaos-simulate...mentioning

confidence: 99%

Efficient NC process scheme generation method based on reusable macro and micro process fusion

Huang

¹

,

He

²

,

Huang

³

et al. 2022

Int J Adv Manuf Technol

Self Cite

4

0

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Process reuse technology has been widely studied and applied in manufacturing industry. However, the current NC process reuse generally assumes that the micro process is compatible with the macro process, but in fact, the reusable processes from the similar local structures of multiple parts are usually difficult to be compatible with each other under the overall manufacturing requirements of the query parts, which leads to the fact that a large amount of user interactions are still required for modification and adjustment in practical engineering applications, so it is not significant to improve the design efficiency. Therefore, an efficient NC process scheme generation method based on reusable macro and micro process fusion is proposed in this paper. Firstly, according to the calculation of semantic distance of process design intention, the micro processes are mapped to the macro process to realize the fusion of the macro process and the micro process, and a compatibility credibility evaluation model is established to evaluate the compatibility of fusion results. Then, when the fusion result is credible, the machining areas corresponding to the process scheme are adjusted and optimized from the geometric level. The adjustment and optimization of machining areas mainly realize the integration of machining areas and the optimization of machining sequence. Finally, the effectiveness and feasibility of the proposed method are verified by the test of actual parts.

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A novel reuse method of machining process knowledge for similar ruled surface blades based on dual mapping

Han,

Gou,

Zhao

et al. 2024

J Mech Sci Technol

0

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Efficient NC Process Scheme Generation Method Based on Reusable Macro and Micro Process Fusion

Huang

¹

,

He

²

,

Huang

³

et al. 2021

Preprint

Self Cite

0

View full text Add to dashboard Cite

Process reuse technology has been widely studied and applied in manufacturing industry. However, the current NC process reuse generally assumes that the micro process is compatible with the macro process, but in fact, the reusable processes from the similar local structures of multiple parts are usually difficult to be compatible with each other under the overall manufacturing requirements of the query parts, which leads to the fact that a large amount of user interactions are still required for modification and adjustment in practical engineering applications, so it is not significant to improve the design efficiency. Therefore, an efficient NC process scheme generation method based on reusable macro and micro process fusion is proposed in this paper. Firstly, according to the calculation of semantic distance of process design intention, the micro processes are mapped to the macro process to realize the fusion of the macro process and the micro process, and a compatibility credibility evaluation model is established to evaluate the compatibility of fusion results. Then, when the fusion result is credible, the machining areas corresponding to the process scheme are adjusted and optimized from the geometric level. The adjustment and optimization of machining areas mainly realize the integration of machining areas and the optimization of machining sequence. Finally, the effectiveness and feasibility of the proposed method are verified by the test of actual parts.

show abstract

A multi-source similar subparts based NC process fusion and regrouping approach

Cited by 3 publications

References 28 publications

Efficient NC process scheme generation method based on reusable macro and micro process fusion

Efficient NC process scheme generation method based on reusable macro and micro process fusion

A novel reuse method of machining process knowledge for similar ruled surface blades based on dual mapping

Efficient NC Process Scheme Generation Method Based on Reusable Macro and Micro Process Fusion

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