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WANG Mingmao, TAO Wang, MA Yinan, CHEN Yanbin, WANG Yang. Research on laser spot weld-bonding process characteristics[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2012, (7): 101-104.
Citation: WANG Mingmao, TAO Wang, MA Yinan, CHEN Yanbin, WANG Yang. Research on laser spot weld-bonding process characteristics[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2012, (7): 101-104.
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Research on laser spot weld-bonding process characteristics

  • 1.

    State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China

  • 2.

    School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China

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  • Received Date: May 18, 2011
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  • The stability of the laser spot weld-bond is analyzed and the exhaust means of the gas from the adhesives with different properties are studied.The weld defects of laser spot weld-bonding process are solved.The key of the weld-bonding process is the appropriate exhaust path for the gas from the adhesive decomposition, the plate gap is an important exhaust channel.The greater the adhesive viscosity is, the worse the weldability is.For the low viscosity adhesive, a reliable connection can be got by the slow rising laser pulse welding technology;for the large viscosity adhesive, a reliable connection can be achieved by filler wire and using the laser spike pulse welding process.The welding process can solve the weld defects of different viscosity adhesive, expanding the applications of the laser weld-bonding technology.
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