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ZHANG Jie, ZHU Le, SUN Aihua, GU Xiang. Influence of laser shock processing on properties of SiCp/Cu composite weld crack restored by electro-spark overlaying[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2009, (12): 17-20.
Citation: ZHANG Jie, ZHU Le, SUN Aihua, GU Xiang. Influence of laser shock processing on properties of SiCp/Cu composite weld crack restored by electro-spark overlaying[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2009, (12): 17-20.

Influence of laser shock processing on properties of SiCp/Cu composite weld crack restored by electro-spark overlaying

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  • Received Date: April 06, 2009
  • The crack of SiCp/Cu composite weld restored by electro-spark overlaying was processed by Nd: glass laser, and effects of laser shock processing on the electro-spark overlaying weld crack were analyzed.Surface welding residual stress distribution alone the transverse direction of the weld was investigated by X-ray diffraction techniques, the tensile strength of the weld was investigated by strength test, and the micro-hardness distribution of the weld surface was measured with a micro-hardness tester.The results show that when laser power is 35 J and laser spot diameter is 5 mm, the laser shock processing can reduce the welding residual stresses, which even change from the tensile stress into compressive stress, and improve the tensile strength and the hardness of SiCp/Cu composite weld restored by electro-spark overlaying.
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