{"_buckets": {"deposit": "5100fc69-7e59-4694-b4ea-16ed266ea50c"}, "_deposit": {"created_by": 3, "id": "74", "owners": [3], "pid": {"revision_id": 0, "type": "depid", "value": "74"}, "status": "published"}, "_oai": {"id": "oai:iot.repo.nii.ac.jp:00000074", "sets": ["9"]}, "author_link": ["205", "204", "206", "207"], "item_10002_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2012", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "3", "bibliographicPageEnd": "22", "bibliographicPageStart": "18", "bibliographic_titles": [{"bibliographic_title": "ものつくり大学紀要"}, {"bibliographic_title": "The Bulletin of Institute of Technologists", "bibliographic_titleLang": "en"}]}]}, "item_10002_description_5": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "The drilling has been accurate to a precision of a few microns, because drill material and form has been advanced. However a essential reason of hole deflection in drilling has not been well known. So in this paper, a effect of drill vibration on hole deflection was analyzed. As a result, the error of initial position of drill was caused by　regenerative chatter vibration, and deflection of hole was caused by 90 degree phase shift of drill bending vibration after one rotation.\n", "subitem_description_type": "Abstract"}, {"subitem_description": "ドリル加工は最も幅広く使われている機械加工法であり，ドリル材質はもちろん工具形状に関しても新しい製品が次々と発表され，微小径ドリルの折損防止技術も進んでいる¹⁾~³⁾．プリント基板⁴⁾や各種ノズルなど，穴加工の微細化や高精度化のニーズに対して，小径ドリルのシニング技術⁵⁾やチップブレーカを備えた小径ドリル⁶⁾が開発され，クーラン穴付きドリルの小径化も進んでいる．これらの技術は切削抵抗を低減することによって穴加工の高精度化を図るものであるが，穴が曲がる根本的な原因の対策にはなっていない．というのはドリルが回転しているため，切削抵抗の分布は軸対称になる．このため切削抵抗の平均値は０となり，特定の方向に穴が曲がるとは考え難い．\n上記のごとく静的な力でドリルが変形し，穴が曲がるとは考え難いが，動的な力の影響を受ける可能性が存在する．動的な力，つまり振動が線形で，3次元の各方向において独立ならば，穴の曲がりに影響することは考えにくい．しかしながら，振動の非線形性やモードカップリングを考慮すれば，振動によって穴が曲がる可能性があると考え，実験をした．", "subitem_description_type": "Abstract"}]}, "item_10002_publisher_8": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "学校法人ものつくり大学"}]}, "item_10002_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "2185-3746", "subitem_source_identifier_type": "ISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "藤澤, 政泰"}, {"creatorName": "フジサワ, マサヤス", "creatorNameLang": "ja-Kana"}], "nameIdentifiers": [{"nameIdentifier": "204", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "高田, 光士郎"}, {"creatorName": "タカダ, コウジロウ", "creatorNameLang": "ja-Kana"}], "nameIdentifiers": [{"nameIdentifier": "205", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Masayasu, FUJISAWA", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "206", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Kojirou, TAKADA", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "207", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "ファイル情報", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2017-06-06"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "bulletin_51.pdf", "filesize": [{"value": "1.7 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_11", "mimetype": "application/pdf", "size": 1700000.0, "url": {"label": "穴加工におけるドリル変形機構の解析", "url": "https://iot.repo.nii.ac.jp/record/74/files/bulletin_51.pdf"}, "version_id": "d2a16a14-c4f9-4ccb-89ea-f174c46fd63e"}]}, "item_keyword": {"attribute_name": "キーワード", "attribute_value_mlt": [{"subitem_subject": "drilling accuracy", "subitem_subject_scheme": "Other"}, {"subitem_subject": "regenerative vibration", "subitem_subject_scheme": "Other"}, {"subitem_subject": "hole deflection", "subitem_subject_scheme": "Other"}, {"subitem_subject": "drill deflection", "subitem_subject_scheme": "Other"}, {"subitem_subject": "drilling accuracy", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "regenerative vibration", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "hole deflection", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "drill deflection", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "jpn"}]}, "item_resource_type": {"attribute_name": "資源タイプ", "attribute_value_mlt": [{"resourcetype": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "穴加工におけるドリル変形機構の解析", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "穴加工におけるドリル変形機構の解析"}, {"subitem_title": "Analysis of Drill Deformation Mechanism in Hole Machining", "subitem_title_language": "en"}]}, "item_type_id": "10002", "owner": "3", "path": ["9"], "permalink_uri": "https://iot.repo.nii.ac.jp/records/74", "pubdate": {"attribute_name": "公開日", "attribute_value": "2017-06-06"}, "publish_date": "2017-06-06", "publish_status": "0", "recid": "74", "relation": {}, "relation_version_is_last": true, "title": ["穴加工におけるドリル変形機構の解析"], "weko_shared_id": 3}