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The Friction Welding Method with Intermediate Material

Journal of Mechanics Engineering and Automation 2013年第11期3卷 677-684页

作者： Ryoji Tsujino Takeshi Higashi kiyoshi matsuura Yoshiaki Ueda Manabu Iguchi Faculty of Science and Engineering Setsunan University Neyagawa 672-8508 Japan Faculty of Engineering Setsunan University Neyagawa 672-8508 Japan Taiyu Corp. Neyagawa 572-0077 Japan Division of Materials Science and Engineering Graduate School of Engineering Hokkaido University Hokkaido 060-8628 Japan Faculty of Engineering Osaka Electro-Communication University Neyagawa 572-8530 Japan

For the purpose of improving the defects of the conventional friction welding method, the new friction welding technology has been examined. That is, the aim of the study is producing the joint of dissimilar materials evaluated to be difficult for friction welding and non-round shape joints. In this process, after the intermediate material generates the independent friction heat on every side of the specimens, it is removed instantaneously and upset process begins to weld the specimens for a joint. In this study, similar joint of A2017 aluminum alloy and one of S45C steel were examined. On the other hand, thermal elastic-plastic stress analysis by the finite element method was carried out using ANSYS mechanical.

关键词：摩擦焊接焊接方法中间材料焊接试样 ANSYS 焊接技术异种材料应力分析

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Numerical Simulation of New Friction Welded Joints

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Journal of Mechanics Engineering and Automation 2013年第10期3卷 595-601页

作者： Takeshi Higashi Ryoji Tsujino kiyoshi matsuura Yoshiaki Ueda Manabu Iguchi Faculty of Engineering Setsunan University Neyagawa 672-8508 Japan Faculty of Science and Engineering Setsunan University Neyagawa 672-8508 Japan Taiyu Corp. Neyagawa 572-0077 Japan Division of Materials Science and Engineering Graduate School of Engineering Hokkaido University Hokkaido 060-8628 Japan Faculty of Engineering Osaka Electro-Communication University Neyagawa 572-8530 Japan

In developing the new friction welding technology, the thermal elastic-plastic stress analysis by the finite element method was carried out to seek the suitable welding conditions such as the friction pressure, the friction speed and the upset pressure. The results obtained are as follows: Heat transfer to the specimens and the intermediate material during friction process was made clear; The operational conditions such as the rotation number of the intermediate material and the friction pressure to reach the liquidus in the interface could be estimated; Further, as the overhang length near the interface is well related to the joint efficiency, we tried to obtain the operational conditions by numerical analysis to acquire a certain length of the overhang length near the interface.

关键词：摩擦焊接头数值模拟热弹塑性应力摩擦压力中间材料操作条件伸长度焊接技术

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Useful detection of CD147 (EMMPRIN) for pathological diagnosis of early hepatocellular carcinoma in needle biopsy samples

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World Journal of Gastroenterology 2007年第21期13卷 2913-2917页

作者： Satoshi Mamori Keisuke Nagatsuma Tomokazu matsuura kiyoshi Ohkawa Hiroshi Hano Masaharu Fukunaga Masato Matsushima Yoshifumi Masui Nao Fushiya Hiroshi Onoda Yasuyuki Searashi Ichiro Takagi Hisao Tajiri Division of Gastroenterology and Hepatology Department of Internal MedicineThe Jikei University School of MedicineTokyo 105-8461Japan Department of Laboratory Medicine The Jikei University School of MedicineTokyo 105-8461Japan Department of Biochemistry 1 The Jikei University School of MedicineTokyo 105-8461Japan Department of Pathology The Jikei University School of MedicineTokyo 105-8461Japan Department of Pathology The Jikei University School of MedicineThe Daisan HospitalTokyo 105-8461Japan Division of Clinical Research and development The Jikei University School of MedicineTokyo 105-8461Japan

AIM:To make clear whether CD147 (EMMPRIN) expression in pathological tumor samples with a fine-needle aspiration biopsy is useful for pathological diagnosis of early hepatocellular carcinoma (HCC). METHODS:Twenty-two patients (15 men and 7 women; median age 68 years,range 56-81 years) underwent a liver tissue biopsy in order to make a diagnosis of HCC. Paraffin-embedded liver biopsy tissue samples from 22 patients were stained with anti-CD147 antibody,murine monoclonal antibody 12C3 (MAb12C3) for immunohistochemical analysis. An immunohistochemical analysis of CD147 was performed and the degree of staining compared between tumor and non-tumor tissue. In addition,the degree of staining within tumor tissue was compared according to a number of clinicopathological variables. RESULTS:The degree of staining of CD147 was significantly higher in tumor tissues than non-tumor tissues,even in tumors less than 15 mm in *** expression of this protein was significantly elevated in HCC tissue specimens from patients with a low value of serum AST and γ-GTP.

关键词： CD147 肝癌早期诊断病理组织活检

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