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Laser forming thin aluminum sheetsLI Li-qun(李俐群), CHEN Yan-bin(陈彦宾), LIN Shang-yang(林尚扬)(State Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 15001, China)Abstract:Laser forming is a flexible forming process that forms sheet metal by means of laser-induced stresses instead of by means of external force. With the rapid development of laser......
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Solidification process of conventional superalloy by confocal scanning laser microscope MIAO Zhu-jun1, SHAN Ai-dang1, WANG Wei2, LU Jun3, XU Wen-liang3, SONG Hong-wei3 1. School of Materials... of a conventional superalloy, IN718, was investigated by confocal scanning laser microscope (CSLM). The liquid fraction during solidification was obtained as a function of real time and temperature......
J. Cent. South Univ. (2012) 19: 402-407 DOI: 10.1007/s11771-012-1018-1 Estimation of deformed laser heat sources and thermal analysis on laser assisted turning of square member KIM Jae-hyun, KIM...-Verlag Berlin Heidelberg 2012 Abstract: Laser assisted machining (LAM) has difficulties in estimating temperature after applying a LAM process due to its very small heat input area, large energy......
properties of titanium aluminides coatings produced on pure Ti by laser surface alloying [J]. Surface and Coatings Technology, 2008, 202: 4121-4129. [4] ZHENG M, FAN D, LI X K, ZHANG J B, LIU Q B... Science and Engineering A, 2008, 488: 139-145. [12] GARCIA I, DAMBORENEA J J D. Corrosion properties of TiN prepared by laser gas alloying of Ti and Ti6Al4V [J]. Corrosion Science, 1998, 40: 1411-1419......
> Laser surface alloying with nitrogen and carbon were employed to produce modified layers on TiAl alloy. The rapidly solidified in situ composites layers reinforced by titanium nitride and titanium... class="keys">Keyword: TiAl intermetallics; laser surface alloying; wear resistance; Received: 2000-01-14 TiAl合金具有高熔点, 低密度, 高的比强度, 比模量和高温强度及抗蠕变能力强等突出优点, 被看作是最有前途的航空航天及汽车......
Laser Heat Treatment on Gear Surface and Its Practical Application DAI Zhong-sen1,SU Bao-rong1,MA Chun-yin1 (1.Guangzhou Photone Technology Co. LTD, P. R. China) 摘要:Making gears with hardened..., by study, experiment and practical use, that not only has the laser heat treatment solved the difficult problems in conventional technique, but also it has great superiority. The use cases proved......
study, laser alloying of electroless Nie P coating on aluminum substrate was conducted using Nd:YAG pulsed laser under the condition of 5.36 109W/m2 in power density and 3.0 mm/s in scanning speed...Rapidly Solidified Microstructure in Laser Alloyed Ni-Al Layer by TEM, STEM z-contrast and HRTEM TechniquesYue Yang1,Jiandong Hu21. College of Materials Science and Engineering, Changchun University......
轧辊表面激光处理技术的研究进展 夏颖1,刘常升2,臧辰峰2,赵鹏飞2,张小彬1 (1.重庆理工大学材料学院,重庆,400050;2.东北大学材料各向异性与织构工程教育部重点实验室,沈阳,110004) 摘要:轧辊是轧机的主要变形部件.总结了轧辊材质,主要工作形式及失效方式和轧辊表面处理技术应用概况,具体从激光淬火与重熔技术,激光合金化和激光熔覆3个方面介绍了轧辊激光表面处理(修复)技术的研究和应用现状,并展望了激光表面处理技术修复表面失效轧辊的发展前景. 关键词:轧辊; 表面处理; 激光合金化; 激光熔覆; roller; surface modification; laser alloying; laser cladding; [全文内容正在添加中] ......
MOTIONS OF ALLOYING ADDITIONS IN GAS STIRRED LADLES B.K.Li1,S.C.Fan1,J.C.He1 (1.Department of Thermal Engineering, Northeastern University, Shenyang 110004, China) Abstract:A mathematical model... bodyfitted coordinate system (BFC). Consequently, computed flow of molten steel and paths of alloying additions are able to cross smoothly the geometric centerline of cylindrical vessel. Second, motion......
