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not applied to investigation of weld line development as traditional injection molding research. In this work, a cold weld line developing process in micro injection molding was considered mainly...J. Cent. South Univ. Technol. (2009) 16: 0774-0780 DOI: 10.1007/s11771-009-0129-9 Numerical simulation method for weld line development in micro injection molding process XIE Lei(谢 磊)1......
by workpiece surface quality, material and compression force[12]. In this work, a cold welding technology was presented to seal micro groove copper(MGC) tubes. The influence of cylindrical heads on weld.... ΔL is the increment of length in the axial direction after cold welding; and p is the compression strength of the sealed structure. Table 2 Parameters of weld joint of MGC tube The experiment......
. To create cold weld between Al and Ag, mating surfaces were specially prepared and various rolling thickness reductions were applied. The minimum critical thickness reduction to begin cold weld... annealing, the interface hardness was reduced. Key words: Ag/Al bimetallic strip; cold weld; anneal; multilayer composite sheet; shape factor 1 Introduction Layered structural composites are often......
faults such as cold and hot weld were performed. The mechanical tests such as tensile tests and bending tests were carried out to reveal any abnormal variation in the relationship of process parameters and the strength. Key words: stud welding; cold weld; SUS304L ......
, the relationship between keyhole depth and weld penetration is also discussed. This paper can help to better understand the dynamics in molten pool and then improve laser welding process. Key words: laser welding; keyhole evolution; weld pool dynamics; free surface tracking; weld penetration Cite this article as: LIU Jiang-wei, ZENG Ping-wang, RAO Zheng-hua, ZHANG Tian-li. Transport phenomena and keyhole......
; electron beam welding; microstructure; phase composition; cold shut defect; weld zone; heat affected zone 1 Introduction Titanium alloys had been widely applied in aerospace field with high specific... in the incomplete penetration weld root, as shown in Fig. 8, but in the complete penetration weld there is no cold shut, as shown in Fig. 9. The cold shut was a specific defect of electron beam welding......
of the fusion zone of an Alloy 600-82 weld joint was conducted,with focus on the weld residual strain distribution and the comparison of the microstructure of heat affected zone(HAZ) with that of cold worked...Microstructure Characterization of the Fusion Zone of an Alloy 600-82 Weld JointCheng Ma1,Jinna Mei2,Qunjia Peng1,Ping Deng1,En-Hou Han1,Wei Ke11. Key Laboratory of Nuclear Materials and Safety......
to determine the strength.And,the weaving width was also the important parameter to control the strength.Furthermore,the concave part had more significant hot and cold cracking in the weld and heat-affected...Effects of Weaving Laser on Weld Microstructure and Crack for Al 6k21-T4 AlloyB.H.Kim1,W.T.Oh2,C.H.Kim3,J.H.Kim3,Y.S.Kim4,Y.H.Park11. Department of Materials Science and Engineering,Pusan National......
A NEURAL NETWORK FOR WELD PENETRATION CONTROL IN GAS TUNGSTEN ARC WELDING J.Q. Gao1,C.S. Wu1,Y.H. Zhao1 (1.Institute of Materials Joining, Shandong University, Jinan 250061, China) Abstract:Realizing of weld penetration control in gas tungsten arc welding requires establishment of a model describing the relationship between the front-side geometrical parameters of weld pool and the back-side......
Trans. Nonferrous Met. Soc. China 29(2019) 1161-1168 Effects of weld penetration on tensile properties of 2219 aluminum alloy TIG-welded joints Deng-kui ZHANG1, Yue ZHAO1,2, Ming-ye DONG1, Guo-qing... Limited, Beijing 100076, China Received 15 August 2018; accepted 27 February 2019 Abstract: Numerical simulation and experimental methods were used to investigate the effects of weld penetration......
