Effect of fiber orientation on surface characteristics of C/SiC composites by laser-assisted machining

Zhai, Changtai; Xu, Jinkai; Hou, Yonggang; Sun, Guibin; Zhao, Beibei; Yu, Huadong

doi:10.1016/j.ceramint.2021.11.183

Cited by 26 publications

(4 citation statements)

References 22 publications

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“…The experimental findings demonstrated that LAP effectively reduced the feed force by 22% and the thrust force by 20% while simultaneously achieving superior workpiece surface quality compared with conventional planing. Zhai et al [174] investigated the characteristics and underlying mechanism for LAP of C/SiC composites with varying fiber orientations. The results revealed that the degree of surface roughness reduction varied and was dependent on fiber orientation.…”

Section: Laser-assisted Planingmentioning

confidence: 99%

Nontraditional energy-assisted mechanical machining of difficult-to-cut materials and components in aerospace community: a comparative analysis

Zhao,

Ding

et al. 2024

Int. J. Extrem. Manuf.

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Difficult-to-cut materials such as titanium alloys, high-temperature alloys, metal/ceramic/polymer-matrix composites, hard and brittle materials, as well as geometrically complex components such as thin-walled structures, micro channels and complex surfaces, are widely used in aerospace community. Mechanical machining is the main material removal process and responsible for the vast majority of material removal for aerospace components. Nevertheless, it encounters many problems in terms of severe and rapid tool wear, low machining efficiency, and deteriorated surface integrity. Nontraditional energy-assisted mechanical machining is a hybrid process in which nontraditional energies, e.g., vibration, laser, electric, etc., are applied to improve the machinability of local material and decrease burden of mechanical machining. It provides a feasible and promising way for improving machinability and surface quality, reducing process forces, and prolonging tool life, etc. However, systematic reviews of this technology are lacking with respect to the current research status and development direction. This paper reviews recent progress in nontraditional energy-assisted mechanical machining of difficult-to-cut materials and components in aerospace community. It focuses on the processing principles, material responses under nontraditional energy, resultant forces and temperatures, material removal mechanisms and applications of these processes including vibration-, laser-, electric-, magnetic-, chemical-, cryogenic cooling-, and hybrid nontraditional energies-assisted mechanical machining. Eventually, a comprehensive summary of the principles, advantages and limitations for each hybrid process is provided, and future perspectives on forward design, device development and sustainability of nontraditional energy-assisted mechanical machining processes are discussed.

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Section: Laser-assisted Planingmentioning

confidence: 99%

Nontraditional energy-assisted mechanical machining of difficult-to-cut materials and components in aerospace community: a comparative analysis

Zhao,

Ding

et al. 2024

Int. J. Extrem. Manuf.

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“…The needled fiber in the Z direction penetrates the continuous carbon fiber layer in the X and Y directions [2] , so that 2.5D-Cf/SiC has higher toughness and strength than 1D-Cf/SiC and 2D-Cf/SiC [3] . 2.5D-Cf/SiC in addition to the advantages of silicon carbide such as high hardness, high-temperature resistance, corrosion resistance, wear resistance, low density, and ease of adapting to extreme environments [4] also greatly compensates for its disadvantages such as high brittleness [5] . 2.5D-Cf/SiC composites are currently recognized as one of the advanced high-temperature structural ceramic materials and friction and wear materials [6] , which are mainly used in the field of aerospace and automotive brake systems [7] .…”

Section: Introductionmentioning

confidence: 99%

Empirical formula model and process parameter optimization of two-dimensional ultrasonic assisted grinding force based on 2.5D-Cf/SiC fiber orientation

Wang,

Xin,

et al. 2024

Preprint

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Due to the anisotropic characteristic of carbon fiber-reinforced silicon carbide ceramics, the fiber orientation angle significantly affects the grinding force. Therefore, it is important to study the influence rule of different fiber orientations on the grinding force of 2.5D-Cf/SiC composites. To study the comprehensive influence of machine tool parameters and the anisotropy of carbon fiber reinforced ceramic matrix composites on the grinding force, two-dimensional ultrasonic plane grinding was studied by orthogonal test and single factor experiment. Based on the multi-exponential fitting analysis method of multiple linear regression equation, the empirical equations of power exponential grinding force prediction model of 2D ultrasonic assisted grinding and conventional grinding 2.5D-Cf/SiC composites at 0°, 45°, 90° fiber orientation and considering fiber orientation and ultrasonic amplitude were established respectively. To verify the empirical formula model in predicting the grinding force of 2.5D-Cf/SiC composites under various fiber orientation angles, the regression equation and regression coefficient of the model were examined. The influence of 2.5D-Cf/SiC grinding parameters on the grinding force was analyzed. The parameters of the grinding force model were optimized based on range analysis and variance analysis, and the optimal process parameter combination was obtained. The results show that the grinding force is negatively correlated with the linear speed, and positively correlated with the feed speed and grinding depth within the range of experimental parameters. The maximum reduction of the normal grinding force is 29.78% when the line speed is 10.48m/s, the feed speed is 100 mm/min, the grinding depth is 50µm, and along the 45° fiber direction. The optimal grinding parameter combination is a line speed of 23.60m/s, feed speed of 5mm/min, and grinding depth of 10µm along the 0° fiber orientation.

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“…Subsequently, this material is used to design and prepare combustion chamber flame tubes, turbine stator cotyledons, wing front segments, thrust chambers, etc. However, this material is also characterized by brittleness and an anisotropic structure and pore characteristics, making it extremely difficult to process and mould into unique shapes and sizes [ 7 , 8 , 9 , 10 , 11 ]. In the process of machining SiCf/SiC ceramic composites, severe tool wear, cracks in the material matrix [ 12 ], transverse fractures [ 13 ], delamination, and fiber–matrix debonding will occur, resulting in a rough surface and a low processing efficiency, both of which directly affect the performance of the material [ 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Cutting Force and the Material Removal Mechanism in the Ultrasonic Vibration-Assisted Scratching of 2D-SiCf/SiC Composites

et al. 2023

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Ultrasonic-assisted grinding (UAG) is widely used in the manufacture of hard and brittle materials. However, the process removal mechanism was never elucidated and its potential is yet to be fully exploited. In this paper, the mechanism of material removal is analyzed by ultrasonic-assisted scratching. Three distinct surfaces (S1, S2, and S3) were selected on the basis of the braided and laminated structure of fiber bundles. The ultrasonic-assisted scratching experiment is carried out under different conditions, and the scratching force (SF) of the tested surface will fluctuate periodically. Under the conditions of different feed speeds, depths, and ultrasonic amplitudes, the normal scratching force (SFn) is greater than the tangential scratching force (SFt), and the average scratching force on the three surfaces is generally S3 > S2 >S1. Among the three processing parameters, the speed has the most significant influence on the scratching force, while the scratching depth has little influence on the scratching force. Under the same conditions and surface cutting mode, the ultrasonic vibration-assisted scratching force is slightly lower than the conventional scratching force. The scratching force decreases first and then increases with the amplitude of ultrasonic vibration. Because the fiber undergoes a brittle fracture in the ultrasonic-assisted scratching process, the matrix is torn, and the surface residues are discharged in time; therefore, the surface roughness is improved.

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Effect of fiber orientation on surface characteristics of C/SiC composites by laser-assisted machining

Cited by 26 publications

References 22 publications

Nontraditional energy-assisted mechanical machining of difficult-to-cut materials and components in aerospace community: a comparative analysis

Nontraditional energy-assisted mechanical machining of difficult-to-cut materials and components in aerospace community: a comparative analysis

Empirical formula model and process parameter optimization of two-dimensional ultrasonic assisted grinding force based on 2.5D-Cf/SiC fiber orientation

Investigation of Cutting Force and the Material Removal Mechanism in the Ultrasonic Vibration-Assisted Scratching of 2D-SiCf/SiC Composites

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