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鍛造および押出加工に関する塑性力学的研究 : 第3報 軸対称問題の解析
https://jaxa.repo.nii.ac.jp/records/35104
https://jaxa.repo.nii.ac.jp/records/3510432d10596-959b-4a2c-a30b-400f7510020c
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
SA4134970.pdf (2.2 MB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||
|---|---|---|---|---|---|---|---|---|
| 公開日 | 2015-03-26 | |||||||
| タイトル | ||||||||
| タイトル | 鍛造および押出加工に関する塑性力学的研究 : 第3報 軸対称問題の解析 | |||||||
| 言語 | ||||||||
| 言語 | jpn | |||||||
| 資源タイプ | ||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||
| 資源タイプ | departmental bulletin paper | |||||||
| 著者 |
工藤, 英明
× 工藤, 英明
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| 出版者 | ||||||||
| 出版者 | 東京大学航空研究所 | |||||||
| 書誌情報 |
東京大学航空研究所集報 巻 1, 号 3, p. 212-246, 発行日 1959-03 |
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| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | 軸対称鍛造および押出加工問題に上界接近法を適用し,加工硬化しないLevy-Misesの剛塑性材料が圧縮,押出,上昇穿孔および向合押出鍛造加工を受ける場合の所要力,変形および欠陥について解析を行ない,新しい知識を得るとともに今まで実験的にのみ知られている事実の説明ができた.さらに工具と材料間にCoulomb摩擦が存在する場合ならびに材料が加工硬化する場合についての上界接近法についての考察を行なった. | |||||||
| 抄録（英） | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | Hideaki KUDO, Study on Forging and Extrusion Processes. Part III-Analysis on Axisymmetrical Problems. In the present paper, several axi-symmetrical forging and extrusion of Levy-Mises material are analised by means of the upper bound approach method which was found to be very effective and convenient in the preceding studies on plane-strain problems (Part I and II). To facilitate calculation, only two kinds of relatively simple velocity field, namely, the parallel velocity field and the triangle velocity field (Figs.3・1・2, 3 and 4) are used. Also the concept of unit cylindrical deforming region (Fig.3・1・1) analogous to that used in the plane-strain analysis is introduced and served to save the labour of calculation in the analysis of particular working problems. The modifications of the upper bound solution obtained for rigid-perfectly-plastic material and perfectly smooth or rough tool surface are also proposed to account for the effect of work-hardening of the material and of the Coulomb friction between material and tool. With the use of these analytical methods, the upper bounds for working pressure, the mode of deformation as well as the defect formation during compression of cylinder (Fig.3・3・1) and ring (Figs.3・3・3 and 5), bar extrusion (Fig.3・4・1), tube piercing (Fig.3・4・5), extrusion-forging (Figs.3・4・7 and 12) and opposed extrusion-forging (Fig.3・4・17) are studied. Some of these results are compared with the analytical and experimental results obtained by other investigators and found to be in good consistency with them. These results will be also compared with the experimental results in the following report, Part IV. | |||||||
| ISSN | ||||||||
| 収録物識別子タイプ | ISSN | |||||||
| 収録物識別子 | 0563-8097 | |||||||
| 書誌レコードID | ||||||||
| 収録物識別子タイプ | NCID | |||||||
| 収録物識別子 | AN00162214 | |||||||
| 資料番号 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 資料番号: SA4134970000 | |||||||
