scholarly journals Fracture Characteristics of The Laser Bonding Joint Between The Aluminum Alloy and The CFRTP With Preset Aluminum Alloy Sheet

Author(s):  
Jiebang Luo ◽  
Hengchang Bu ◽  
Feiyun Wang ◽  
Xiaohong Zhan ◽  
Min Yu ◽  
...  

Abstract This paper presents a method to improve the laser joint strength between carbon fiber reinforced thermoplastic composite (CFRTP) and aluminum alloy. In this method, the aluminum alloy sheet is preset between the polyetheretherketone (PEEK) and carbon cloth, while the CFRTP with preset aluminum alloy sheet is attained by the compression molding method. The CFRTP with preset aluminum alloy sheet is connected to the aluminum alloy by laser heat source, and the maximum load of the joint can reach 4264 N. Microstructure and fracture surface morphology of joint are observed and analyzed. The results indicate that the element diffusion between the preset aluminum alloy sheet and CFRTP shows more significant compared with the interface of aluminum alloy and CFRTP due to the effect of hot pressing. The fracture failure mode of the lap structure between aluminum alloy and CFRTP is mixed fracture with adhesion fracture as the main component. The fracture position of preset aluminum alloy sheet and aluminum alloy lap structure occurs near the weld seam fusion line, while the fracture behavior presents a ductile fracture. The joint bonding force is mainly attributed to the collective effect of two lap structures, during the stretching process, the interface between aluminum alloy and CFRTP first undergoes fracture, then preset aluminum alloy sheet undergoes plastic fracture failure.

2003 ◽  
Vol 19 (8) ◽  
pp. 1215-1244 ◽  
Author(s):  
F. Barlat ◽  
J.M. Ferreira Duarte ◽  
J.J. Gracio ◽  
A.B. Lopes ◽  
E.F. Rauch

2014 ◽  
Vol 548-549 ◽  
pp. 297-300
Author(s):  
Dae Yong Kim ◽  
Hyeon Il Park ◽  
Ji Hoon Kim ◽  
Sang Woo Kim ◽  
Young Seon Lee

Studies on electromagnetic impact welding between similar or dissimilar flat sheet metals using the flat one turn coil have been recently achieved. In this study, three dimensional electromagnetic-mechanical coupled numerical simulations are performed for the electromagnetic impact welding of aluminum alloy sheets with flat rectangular one turn coil. The deformation behavior during impact welding was examined. The effect of process parameters such as charge voltage, standoff distance and gap distance were investigated.


2016 ◽  
Vol 877 ◽  
pp. 393-399
Author(s):  
Jia Zhou ◽  
Jun Ping Zhang ◽  
Ming Tu Ma

This paper presents the main achievements of a research project aimed at investigating the applicability of the hot stamping technology to non heat treatable aluminium alloys of the 5052 H32 and heat treatable aluminium alloys of the 6016 T4P after six months natural aging. The formability and mechanical properties of 5052 H32 and 6016 T4P aluminum alloy sheets after six months natural aging under different temperature conditions were studied, the processing characteristics and potential of the two aluminium alloy at room and elevated temperature were investigated. The results indicated that the 6016 aluminum alloy sheet exhibit better mechanical properties at room temperature. 5052 H32 aluminum alloy sheet shows better formability at elevated temperature, and it has higher potential to increase formability by raising the temperature.


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