{"created":"2023-06-20T15:05:45.891045+00:00","id":35105,"links":{},"metadata":{"_buckets":{"deposit":"4a35c1c5-cfa0-43f7-8211-4c568cee3320"},"_deposit":{"created_by":1,"id":"35105","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"35105"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00035105","sets":["1887:1890","1896:1898:1899:1909"]},"author_link":["421032"],"item_9_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1959-06","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"4","bibliographicPageEnd":"299","bibliographicPageStart":"247","bibliographicVolumeNumber":"1","bibliographic_titles":[{"bibliographic_title":"東京大学航空研究所集報"}]}]},"item_9_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"主として純アルミニウムその他純銅,7/3黄銅を素材として円柱圧縮,リング圧縮,押込,押出,穿孔,押出鍛造,押出口が二つの一方向ないし対合方向の押出および押出鍛造,密閉型圧印加工等種々の軸対称鍛圧冷間加工の実験を行ない,加工圧力,欠陥生成を調べ,また二三の場合については純鉛による内部流れ模様を観察した.これらの結果は,第3報において解析結果を得たものについては直接比較を行ない,またそれ以外のものは第1報における平面ひずみ問題としての解析結果と間接比較を行なって検討し解析による予想が実際目的に十分有効であることを見出した.押出,圧印中のコンテナに加わる内圧,型突起に加わる圧力の測定も二三の場合について試みた.","subitem_description_type":"Abstract"}]},"item_9_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"Hideaki KUDO, Study on Forging and Extrusion Processes. Part IV-Experiments on Axisymmetric Problems. Experiments on 'compression of cylinder and annulus', 'indentation (Figs.4・2・1 and 5)', 'extrusion and extrusion-forging (Fig.4・3・3 (a))', 'piercing and piercing-forging (Fig.4・3・3 (c))', 'hollow billet extrusion (Fig.4・3・3 (f) (g))', 'combined extrusion (Fig.4・3・3 (e))' 'opposed extrusion-forging (Fig.4・3・3 (b) (d) (h) (i) (j))' and 'closed-die coining (Figs.4・5・2 and 5)' are done with aluminum, copper, lead and brass at room temperature and at a low speed. Agreements between the predicted (Part I and III) and experimental working pressures are satisfactory except for the closed-die coining. The main reason for large discrepancies between the theory and experiment is thought to be due to the incorrect estimate of the coefficient of friction and the yield strength of material under the actual working conditions and the neglection of the elastic distortion of the workidg tools. The upper bound approach method predicts the deformation of material well and suggests the formation mechanism and prevention method of material defects caused by working. The internal pressure acting on the ring container and the projection of the die are measured (Fig.4・6・1) and the Thomsen and Frisch's conclusion is confirmed.","subitem_description_type":"Other"}]},"item_9_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: SA4134971000","subitem_description_type":"Other"}]},"item_9_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"東京大学航空研究所"}]},"item_9_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0563-8097","subitem_source_identifier_type":"ISSN"}]},"item_9_source_id_24":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00162214","subitem_source_identifier_type":"NCID"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"工藤, 英明"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-01-24"}],"displaytype":"detail","filename":"SA4134971.pdf","filesize":[{"value":"3.8 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"SA4134971.pdf","url":"https://jaxa.repo.nii.ac.jp/record/35105/files/SA4134971.pdf"},"version_id":"99620342-430b-4849-8179-1985655064e8"}]},"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":"鍛造および押出加工に関する塑性力学的研究 : 第4報 軸対称問題の実験","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"鍛造および押出加工に関する塑性力学的研究 : 第4報 軸対称問題の実験"}]},"item_type_id":"9","owner":"1","path":["1890","1909"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"35105","relation_version_is_last":true,"title":["鍛造および押出加工に関する塑性力学的研究 : 第4報 軸対称問題の実験"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-20T23:26:41.978600+00:00"}