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Product Code: PIC2008_P106

Study on the Surface Treatment for Controlling the Aluminum-Lithium Alloy Weld Porosity of Laser Welding
Chen Li, BAMTRI; Beijing Peoples Republic of China
Gong Shuili, BAMTRI; Beijing Peoples Republic of China
Li Xiaoyan, BJUT; Beijing Peoples Republic of China
Yang Jing, BAMTRI; Beijing Peoples Republic of China
Presented at PICALO 2008

The surface treatment methods were investigated to control the weld porosity of laser welding aluminum-lithium alloy, which were including in caustic washing, acid picking, mechanical polishing with stainless steel brush and laser cleaning in this paper. The effect of parameters of these surface treatment procedures on the distribution, number, size and morphology of pores in the welds were discussed. The joints mechanical properties and microstructures were also analyzed.

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