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Study on SiCp/6063Al composites laser welding process with Al75Cu20Ti5 foil interlayer

Dongfeng Cheng ; School of Materials Science and Engineering, Henan Polytechnic University, Henan, Jiaozuo, 454003, P. R. China
Peng Wang ; School of Materials Science and Engineering, Henan Polytechnic University, Henan, Jiaozuo, 454003, P. R. China
Jitai Niu ; School of Materials Science and Engineering, Henan Polytechnic University, Henan, Jiaozuo, 454003, P. R. ChinaHenan Jingtai High-Novel Materials Ltd. of Science and Technology, Henan, Jiaozuo, 454003, P. R. China
Zeng Gao ; School of Materials Science and Engineering, Henan Polytechnic University, Henan, Jiaozuo, 454003, P. R. China

Sažetak

This experiment chooses 6063 aluminum matrix composites containing 55~75% SiC particle reinforcing phase as the parent metal and Al75Cu20Ti5 foil as the interlayer. The laser power, defocusing amounts and welding speed are discussed using three important parameters for the joint forming, microstructure and shear strength. The result shows that the weld width is mainly affected by laser power, and the weld penetration is almost determined by the defocusing amount. The welding speed has a certain influence on both weld width and weld penetration. When suitable laser heat input is adopted, superior weld appearance and satisfied shear strength could be obtained. The highest shear strength is 217MPa, with the laser power of 520W, the defocusing amounts of -1mm, and the welding speed of 1.5cm/s.

Ključne riječi

composites; laser welding; joint; microstructure; shear strength

Hrčak ID:

181518

URI

https://hrcak.srce.hr/181518

Datum izdavanja:

16.5.2017.

Posjeta: 688 *