Study on Ultrasonic Vibration Drilling of Particulate Reinforced Aluminum Matrix Composites

2005 ◽  
pp. 447-452 ◽  
Author(s):  
C.S. Liu ◽  
Bo Zhao ◽  
G.F. Gao ◽  
X.H. Zhang
Keyword(s):  
Ultrasonic Vibration ◽  
Aluminum Matrix ◽  
Aluminum Matrix Composites ◽  
Matrix Composites ◽  
Vibration Drilling ◽  
Particulate Reinforced

Study on Ultrasonic Vibration Drilling of Particulate Reinforced Aluminum Matrix Composites

2005 ◽  
Vol 291-292 ◽  
pp. 447-452 ◽  
Author(s):  
C.S. Liu ◽  
Bo Zhao ◽  
G.F. Gao ◽  
X.H. Zhang
Keyword(s):  
Ultrasonic Vibration ◽  
Metal Matrix ◽  
Aluminum Matrix ◽  
Aluminum Matrix Composites ◽  
Matrix Composites ◽  
Twist Drill ◽  
The Common ◽  
Vibration Drilling ◽  
Al Matrix Composites ◽  
Particulate Reinforced

Metal matrix composites（MMCs）is applied widely in recent years because of its excellent performances, but the machining is very difficult due to the rigidity of reinforced-phase in it, so, the application of MMCs is restricted much. In this paper the experiment of common and ultrasonic vibration drilling is performed to SiC particulate reinforced Al matrix composites （SiCp/Al）by use of carbide-alloy-twist-drill, and the surface roughness of hole is compared, furthermore, the wearing of twist drill and the feature of chips are analyzed by scanning electron microscope (SEM). From above, we can draw aconclusion that ultrasonic vibration drilling may meliorate the mechanism of drilling to some extent and it takes on much superiority that the common drilling is unmatched, so this method could provide a certain foundation for the posterior study and application.

Drilling Characteristics of SiC Particle Reinforced Aluminum-Matrix Composites with Ultrasonic Vibration

2010 ◽  
Vol 455 ◽  
pp. 302-306 ◽  
Author(s):  
Xing Xin Xu ◽  
Xiao Hui Zhang ◽  
Chuan Shao Liu ◽  
Bo Zhao
Keyword(s):  
Surface Quality ◽  
Ultrasonic Vibration ◽  
Rapid Development ◽  
Aluminum Matrix ◽  
Aluminum Matrix Composites ◽  
Drilling Process ◽  
Matrix Composites ◽  
Drilling Force ◽  
Vibration Drilling ◽  
Sic Particle

With the rapid development of aviation at home, particle reinforced metal matrix composites (PRMMCs) has been widely applied recently. But at the same time, the difficult machining has gradually been one of the most outstanding bottle-necks that restrict the rapid enhancement of productivity. Here, in virtue of the self-developed ultrasonic drilling equipment, hole-making experiments of common and ultrasonic vibration drilling are performed on SiC particle reinforced aluminum-matrix composites （SiCp/Al）with different content of SiC by using two types of tungsten carbide drill. Drilling characteristics of machining composites with ultrasonic vibration are analyzed from such respects as the composites crush, drilling force, drill wear and hole surface quality. Studies show that, during the ultrasonic vibration drilling process, SiC particle in the composites is prone to break along the crystal connection boundary or suffer ductile fracture under the dynamic ultrasonic impulse, in which the cutting resistance could be reduced and the tool edge could be protected. Thereby, drilling locating precision and hole surface quality could be enhanced, wear of the drill chisel edge effectively improved, and the drilling torque reduced about 30%.

Drilling Force of SiC Particle Reinforced Aluminum-Matrix Composites with Ultrasonic Vibration

2009 ◽  
Vol 416 ◽  
pp. 243-247 ◽  
Author(s):  
Xing Xin Xu ◽  
Ya Lin Mo ◽  
Chuan Shao Liu ◽  
Bo Zhao
Keyword(s):  
Ultrasonic Vibration ◽  
Aluminum Matrix ◽  
Machining Process ◽  
Aluminum Matrix Composites ◽  
Drilling Process ◽  
Matrix Composites ◽  
Drilling Force ◽  
Ultrasonic Drilling ◽  
Vibration Drilling ◽  
Sic Particle

In recent years, particle reinforced metal matrix composites (PRMMCs）has been widely applied because of its excellent mechanical performances. But the machining is very difficult due to the rigidity of reinforced phase in it, thus the popularization of PRMMCs is restricted much. Here, a method of ultrasonic vibration drilling is presented to the hole-making of Aluminum-matrix composites based on cutting force analysis between common and vibration machining. In virtue of the self-developed ultrasonic drilling equipment, experiments of common and ultrasonic vibration drilling are performed on SiC particle reinforced Aluminum-matrix composites with different content of SiC by using two types of tungsten carbide twist drill. Since the tool life can be represented directly by drilling force, especially the torque, the study of drilling force is very important for the surface roughness, the design and life of drill. Drilling force and its variation in the machining process are analyzed by comparison of common and vibration drilling. It shows that the eviction of drilling chips can be meliorated to some extent, and the drilling torque can be reduced about 30% during the ultrasonic vibration drilling process.

Microstructure and Mechanical Performance of Ultrasonically Brazed Joints of High Fraction Volume of SiC Particulate Reinforced Aluminum Matrix Composites

2011 ◽  
Vol 291-294 ◽  
pp. 910-914
Author(s):  
Yang Zhang ◽  
Cha Qin ◽  
Hao Zhu
Keyword(s):  
Shear Strength ◽  
Mechanical Performance ◽  
Filler Metal ◽  
Aluminum Matrix ◽  
Aluminum Matrix Composites ◽  
Matrix Composites ◽  
Brazed Joints ◽  
High Fraction ◽  
Wetted Area ◽  
Particulate Reinforced

The ultrasonically brazing of 55 vol.% SiCp/A356 composites in air has been investigated. When the ultrasonic vibration is applied for 0.5s, the oxide layer is still continuous at most places between the filler metal and the composites. The shear strength is only ~30% of that of the base composites. As the ultrasonic action time increases, the oxide film sufficiently disappears in the bond region, and the wetted area between the filler metal and SiC particles increases gradually. As a consequence of this, the shear strength of bonds also increases with the ultrasonically acting time. The maximum value of the shear strength of the bonds reaches 165.5MPa when the ultrasonic acting time increases to 5s, which is similar to the shear strength of the base composites.

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