Proposal of a determination method of cutting sequence during a rough machining operation based on topology optimization of workpiece
There is an increasing demand of high-value-added workpieces that generally have three dimensional and complex shapes such as aircraft parts. In complex parts machining, workpiece shape and stiffness change greatly during a rough machining operation and induce workpiece displacement and vibration th...
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| Format: | Article |
| Language: | Japanese |
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The Japan Society of Mechanical Engineers
2019-11-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/85/880/85_19-00228/_pdf/-char/en |
| _version_ | 1811220934530433024 |
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| author | Hitoshi KUSHINO Maho KUMANOTANI Keiichi NAKAMOTO |
| author_facet | Hitoshi KUSHINO Maho KUMANOTANI Keiichi NAKAMOTO |
| author_sort | Hitoshi KUSHINO |
| collection | DOAJ |
| description | There is an increasing demand of high-value-added workpieces that generally have three dimensional and complex shapes such as aircraft parts. In complex parts machining, workpiece shape and stiffness change greatly during a rough machining operation and induce workpiece displacement and vibration that strongly affect machining accuracy and tool life. However, it is difficult to automatically determine machining process parameters such as cutting sequence, tool paths and cutting conditions by using a commercial CAM system because there is a large number of combinations. Therefore, in order to improve the efficiency of complex parts machining, it is necessary to clarify these tacit knowledges and to formulate the implicit machining know-how owned by skillful experts. The authors have been proposed a determination method of complex workpiece shapes during a rough machining operation based on topology optimization. In the method, topology optimization is used to calculate workpiece shapes to ensure the stiffness by dividing a rough machining operation into several steps. However, the operation planning has not been adequately considered to determine machining process parameters. Moreover, it is necessary to repeat the calculation of topology optimization because a rough machining operation is divided into many machining steps. Thus, in this study, a determination method of cutting sequence is proposed by using the design variables obtained in the calculation process of topology optimization of workpiece. In order to estimate the machined shape based on the proposed cutting sequence, cutting experiments are conducted. The results show the effectiveness of the proposed cutting sequence to reduce the deformation of workpiece during a rough machining operation of complex parts machining. |
| first_indexed | 2024-04-12T07:50:39Z |
| format | Article |
| id | doaj.art-ee0a250458434804b2045050d2591816 |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-12T07:50:39Z |
| publishDate | 2019-11-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-ee0a250458434804b2045050d25918162022-12-22T03:41:36ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612019-11-018588019-0022819-0022810.1299/transjsme.19-00228transjsmeProposal of a determination method of cutting sequence during a rough machining operation based on topology optimization of workpieceHitoshi KUSHINO0Maho KUMANOTANI1Keiichi NAKAMOTO2Department of Industrial Technology and Innovation, Tokyo University of Agriculture and TechnologyDepartment of Mechanical Systems Engineering, Tokyo University of Agriculture and TechnologyDepartment of Mechanical Systems Engineering, Tokyo University of Agriculture and TechnologyThere is an increasing demand of high-value-added workpieces that generally have three dimensional and complex shapes such as aircraft parts. In complex parts machining, workpiece shape and stiffness change greatly during a rough machining operation and induce workpiece displacement and vibration that strongly affect machining accuracy and tool life. However, it is difficult to automatically determine machining process parameters such as cutting sequence, tool paths and cutting conditions by using a commercial CAM system because there is a large number of combinations. Therefore, in order to improve the efficiency of complex parts machining, it is necessary to clarify these tacit knowledges and to formulate the implicit machining know-how owned by skillful experts. The authors have been proposed a determination method of complex workpiece shapes during a rough machining operation based on topology optimization. In the method, topology optimization is used to calculate workpiece shapes to ensure the stiffness by dividing a rough machining operation into several steps. However, the operation planning has not been adequately considered to determine machining process parameters. Moreover, it is necessary to repeat the calculation of topology optimization because a rough machining operation is divided into many machining steps. Thus, in this study, a determination method of cutting sequence is proposed by using the design variables obtained in the calculation process of topology optimization of workpiece. In order to estimate the machined shape based on the proposed cutting sequence, cutting experiments are conducted. The results show the effectiveness of the proposed cutting sequence to reduce the deformation of workpiece during a rough machining operation of complex parts machining.https://www.jstage.jst.go.jp/article/transjsme/85/880/85_19-00228/_pdf/-char/encutting sequenceoperation planningrough machining operationtopology optimizationcam system |
| spellingShingle | Hitoshi KUSHINO Maho KUMANOTANI Keiichi NAKAMOTO Proposal of a determination method of cutting sequence during a rough machining operation based on topology optimization of workpiece Nihon Kikai Gakkai ronbunshu cutting sequence operation planning rough machining operation topology optimization cam system |
| title | Proposal of a determination method of cutting sequence during a rough machining operation based on topology optimization of workpiece |
| title_full | Proposal of a determination method of cutting sequence during a rough machining operation based on topology optimization of workpiece |
| title_fullStr | Proposal of a determination method of cutting sequence during a rough machining operation based on topology optimization of workpiece |
| title_full_unstemmed | Proposal of a determination method of cutting sequence during a rough machining operation based on topology optimization of workpiece |
| title_short | Proposal of a determination method of cutting sequence during a rough machining operation based on topology optimization of workpiece |
| title_sort | proposal of a determination method of cutting sequence during a rough machining operation based on topology optimization of workpiece |
| topic | cutting sequence operation planning rough machining operation topology optimization cam system |
| url | https://www.jstage.jst.go.jp/article/transjsme/85/880/85_19-00228/_pdf/-char/en |
| work_keys_str_mv | AT hitoshikushino proposalofadeterminationmethodofcuttingsequenceduringaroughmachiningoperationbasedontopologyoptimizationofworkpiece AT mahokumanotani proposalofadeterminationmethodofcuttingsequenceduringaroughmachiningoperationbasedontopologyoptimizationofworkpiece AT keiichinakamoto proposalofadeterminationmethodofcuttingsequenceduringaroughmachiningoperationbasedontopologyoptimizationofworkpiece |