Abstract
Silicon carbide particle-reinforced aluminum matrix composite (SiCp/Al) has been widely used in the military and aerospace industry due to its special performance; however, there remain many problems in the processing. The present paper introduces an ultrasonic vibration tensile apparatus and a composite tensile specimen and performs Abaqus finite element simulation on high-volume SiCp/Al. The results show that the stress-strain curve increases linearly during conventional tensile strength; the intermittent vibration tensile strength is similar to the full course vibration tensile strength: The magnitude of the stress reduction increases as the amplitude of the ultrasound increases and the vibration frequency increases. The tensile rate is inversely proportional to the magnitude of the stress reduction, and in the ultrasonic parameters, the amplitude has the greatest influence on the magnitude of the stress reduction, followed by the tensile rate; additionally, the frequency has the least influence on the magnitude of the stress reduction. The experimental results show that the simulation results are consistent with the experimental results.
Highlights
Metal matrix composites (MMCs) have generated considerable recent research interest [1,2,3,4].Silicon carbide particle-reinforced aluminum matrix composite (SiCp/Al) composite is a special material prepared using aluminum alloy as a metal matrix followed by the addition of a quantitative volume fraction or different sizes of silicon carbide particles as reinforcement
Whether one uses ultrasonic-assisted turning (UAT) or conventional turning (CT), the tool results in abrasive wear and adhesive wear; Zhou et al [13] used rotary ultrasonic grinding to process SiCp/Al materials and found that ultrasonic vibration can effectively reduce the grinding force, improving the material removal efficiency and surface quality; they did not observe the grinding wheel blockage and grinding burn phenomenon; in Wei et al [14], the machinability and tool wear of machining a SiCp/Al metal matrix-composite was compared with dry UAT and CT with the use of a cemented carbide (WC) and a polycrystalline diamond (PCD) tool; they found that the cutting force was significantly reduced during UAT
The analysis shows that the magnitude of the extreme difference of each factor is: RA > Rν > R f, indicating that the amplitude is the primary consideration in the experiment, followed by the tensile rate, while the frequency variation has the least influence on the magnitude of the stress reduction
Summary
Metal matrix composites (MMCs) have generated considerable recent research interest [1,2,3,4]. Whether one uses UAT or CT, the tool results in abrasive wear and adhesive wear; Zhou et al [13] used rotary ultrasonic grinding to process SiCp/Al materials and found that ultrasonic vibration can effectively reduce the grinding force, improving the material removal efficiency and surface quality; they did not observe the grinding wheel blockage and grinding burn phenomenon; in Wei et al [14], the machinability and tool wear of machining a SiCp/Al metal matrix-composite was compared with dry UAT and CT with the use of a cemented carbide (WC) and a polycrystalline diamond (PCD) tool; they found that the cutting force was significantly reduced during UAT. The influence of the ultrasonic parameters on the magnitude of the stress reduction via the finite element simulation was that the amplitude had the greatest influence on the stress reduction amplitude, followed by the tensile rate; the frequency variation had the least influence on the stress reduction amplitude
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