Quality of Milling Surface of Silicon Carbide Fiber Reinforced Silicon Carbide Ceramic Matrix Composites

doi:10.12044/j.issn.1007-2330.2022.01.013

Home > Archive>Volume 52, Issue 1, 2022 >89-93. DOI:10.12044/j.issn.1007-2330.2022.01.013

Quality of Milling Surface of Silicon Carbide Fiber Reinforced Silicon Carbide Ceramic Matrix Composites
DOI:
                        10.12044/j.issn.1007-2330.2022.01.013
                    
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Author:
                        HUANG QinglinHUANG Qinglin
Science and Technology on Advanced Functional Composites Laboratory， Aerospace Research Institute of Materials ＆ Processing Technolog，Beijing 100076
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ZHAO JiansheZHAO Jianshe
Science and Technology on Advanced Functional Composites Laboratory， Aerospace Research Institute of Materials ＆ Processing Technolog，Beijing 100076
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XU LiangXU Liang
Science and Technology on Advanced Functional Composites Laboratory， Aerospace Research Institute of Materials ＆ Processing Technolog，Beijing 100076
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WANG KaiWANG Kai
Science and Technology on Advanced Functional Composites Laboratory， Aerospace Research Institute of Materials ＆ Processing Technolog，Beijing 100076
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WANG XinyongWANG Xinyong
Science and Technology on Advanced Functional Composites Laboratory， Aerospace Research Institute of Materials ＆ Processing Technolog，Beijing 100076
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Affiliation:Science and Technology on Advanced Functional Composites Laboratory， Aerospace Research Institute of Materials ＆ Processing Technolog，Beijing 100076
Clc Number:TB33
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Abstract:

The single factor milling test of SiC_f/SiC composites prepared by PIP was carried out with PCD milling cutter. The effects of milling process parameters on the cutting force and surface roughness after machining were analyzed. The formation mechanism of machined surface morphology of SiC_f / SiC composites was discussed by SEM analysis of machined surface and fiber fracture. The results show that the surface roughness and cutting force have the same change trend. High spindle speed and small cutting width are conducive to obtain the machined surface with small surface roughness. The material removal method near the hole area is different from that far away from the hole area. The in-plane deflection and interlaminar buckling of fibers in materials lead to a variety of fracture modes of fibers.

Key words:SiC_f/SiC composite;Surface roughness;Surface topography;Fiber fracture

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Received:October 19,2021
Revised:December 30,2021
Adopted:November 17,2021
Online: February 25,2022
Published: February 28,2022

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