Micro-milling of 65 vol% SiCp/Al composites with a novel laser-assisted hybrid process

Zhao, Guolong; Mao, Pengcheng; Li, Liang; Iqbal, Asif; He, Ning

doi:10.1016/j.ceramint.2020.07.107

Cited by 31 publications

(10 citation statements)

References 24 publications

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“…SiCp/Al composites own excellent properties of high specific strength, specific stiffness, specific modulus, good wear resistance and low heat expansion coefficient. So they are widely used in military, aerospace and electronic packaging [1][2][3][4]. However, It's difficult to machine because SiCp/Al composites have high brittleness and low toughness.…”

Section: Introductionmentioning

confidence: 99%

Study on the edge defects of high volume fraction 70% SiCp/Al composites in ultrasonic-assisted milling

Peng

Xiang

Lei

et al. 2022

Int J Adv Manuf Technol

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Directing at the hard machinability of high volume fraction 70% SiCp/Al composites， a longitudinal and torsional ultrasonic-assisted milling method is proposed to improve the edge quality and machining efficiency. By observing the metallographic structure of the material, the three-dimensional finite element model of SiC particles with spherical, ellipsoidal and random polyhedra is established and analyzed by ABAQUS simulation software. The formation mechanism of edge defects, stress distribution, defect characteristics and the effect of machining parameters on milling force are investigated during ultrasonic-assisted milling. The results show that the edge defects appear at the inlet, outlet and middle edge position, especiallyis more serious at the outlet position. The SiC particles failure modes mainly include particle pullout, particle shearing, crushing, and the edge defects mainly include matrix tearing, edge breakage, burrs, bulgesandpits. In a certain range of ultrasonic amplitude, ultrasonic-assisted milling can effectively reduce the surface fragmentation rate and milling force, slow down the expansion of cracks, increase the plastic flow of material, and obtain better edge quality compared with traditional machining method. By comparing the results of finite element simulation and experimental tests, it shows that the simulation results are in good agreement with the experimental tests.

show abstract

Section: Introductionmentioning

confidence: 99%

Study on the edge defects of high volume fraction 70% SiCp/Al composites in ultrasonic-assisted milling

Peng

Xiang

Lei

et al. 2022

Int J Adv Manuf Technol

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show abstract

“…They found that the cemented carbide surface form a porous oxide layer through the high-temperature oxidation under laser irradiation which can effectively decrease the hardness and improve the machinability of cemented carbide. Zhao et al(2020), studied of laser-induced oxidation assisted micro-milling to machine 65 vol% SiCp/Al composites. An easy to remove the porous oxide layer which was generated when the material was treated by a nanosecond laser in an oxygen-rich environment leads to an enhancement in the machinability of the material.…”

Section: Introductionmentioning

confidence: 99%

Chemical Assisted Laser Beam Machining of SiC Ceramic and Optimization of Process Parameters

Bonsa¹,

Jiru²,

Singh³

et al. 2021

Preprint

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Chemo mechanical laser beam assisted finishing is the process of a conceptual combination of a fundamental cognitive process. In this process, three basic concepts are synthesized to obtain a smooth surface of silicon carbide. Three different chemicals of H2SO4 , HCl, and HF with a 50% solution with purified water were used. Continuous mode CO2 power from 250W-300W was used to melt the surface after acid was applied. The smooth surface was evaluated using morphology, including pore pattern, pore depth, and pore width was studied under a scanning electron microscope, and the surface roughness, wear-resistance, and hardness were analyzed using a non-contact surface profilometer, scratch tester TR-101, and Digital Rockwell hardness device respectively. The results were statistically analyzed using Design expert software analysis of variance (ANOVA). The results showed a significant change in the pore pattern, crystal structure, surface roughness, wear-resistance, and hardness. This result was verified by scanning electron microscope, optical microscope, Non-contact profilometer, and scratch tester TR-101machine. The hardness of the smooth surface was increased as well as surface roughness and the coefficient of friction also improved as compared to substrate silicon carbide.

show abstract

Section: Introductionmentioning

confidence: 99%

Study On The Edge Defects of High Volume Fraction 70% SiCp/Al Composites In Ultrasonic-Assisted Milling

Peng

Xiang

Lei

et al. 2021

Preprint

View full text Add to dashboard Cite

Directing at the hard machinability of high volume fraction 70% SiCp/Al composites，a longitudinal and torsional ultrasonic-assisted milling method is proposed to improve the edge quality and machining efficiency. By observing the metallographic structure of the material, the three-dimensional finite element model of SiC particles with spherical, ellipsoidal and random polyhedra is established and analyzed by ABAQUS simulation software. The formation mechanism of edge defects, stress distribution, defect characteristics and the effect of machining parameters on milling force are investigated during ultrasonic-assisted milling. The results show that the edge defects appear at the inlet, outlet and middle edge position, especiallyis more serious at the outlet position. The SiC particles failure modes mainly include particle pullout, particle shearing, crushing, and the edge defects mainly include matrix tearing, edge breakage, burrs, bulgesandpits. In a certain range of ultrasonic amplitude, ultrasonic-assisted milling can effectively reduce the surface fragmentation rate and milling force, slow down the expansion of cracks, increase the plastic flow of material, and obtain better edge quality compared with traditional machining method. By comparing the results of finite element simulation and experimental tests, it shows that the simulation results are in good agreement with the experimental tests.

show abstract

Micro-milling of 65 vol% SiCp/Al composites with a novel laser-assisted hybrid process

Cited by 31 publications

References 24 publications

Study on the edge defects of high volume fraction 70% SiCp/Al composites in ultrasonic-assisted milling

Study on the edge defects of high volume fraction 70% SiCp/Al composites in ultrasonic-assisted milling

Chemical Assisted Laser Beam Machining of SiC Ceramic and Optimization of Process Parameters

Study On The Edge Defects of High Volume Fraction 70% SiCp/Al Composites In Ultrasonic-Assisted Milling

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