金刚石与磨料磨具工程

Preparation and growth mechanism of ultra-thin free-standing polycrystalline diamond film based on glass carbon substrate

XIONG Xiao, WANG Bing, XIONG Ying, WU Guodong

2023, 43(5): 531-536. doi: 10.13394/j.cnki.jgszz.2023.0005

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[Objective] Diamond films have been widely used in many fields such as semiconductor devices, optical windows, biomedical applications, heat sink, and mechanical tooling. High quality diamond films need be completely peeled off from the substrate surface for subsequent processing. However, there ar...

Interfacial diffusion in TiN_0.3/AlN composite

ZOU Qin, SUN Junrong, LI Yanguo, LUO Yong`an

2023, 43(5): 537-545. doi: 10.13394/j.cnki.jgszz.2022.0222

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In recent years, extensive research has been conducted on nano-multilayer films of TiN/AlN system. However, there are few reports on its bulk composites. In this study, non-stoichiometric TiN_0.3 was prepared by mechanical alloying, then TiN_0.3/AlN composites were fabricated through spark plasma sint...

Influence of hot-pressed sintering temperature on properties of SiCp/Al composites

CAI Jianing, LE Chen, FAN Zimin, LI Xin, TANG Mingqiang, ZHAO Fang

2023, 43(5): 546-552. doi: 10.13394/j.cnki.jgszz.2022.0105

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SiCp/Al composites were prepared by hot-pressing sintering method, and the effect of sintering temperature on the properties of the composites was studied. The phase compositions, relative density, mechanical properties and micro morphology of the composite samples were analyzed through X-ray diffra...

Research status on rock-breaking mechanism and performance testing methods of PDC bit cutters

LI Yancao

2023, 43(5): 553-567. doi: 10.13394/j.cnki.jgszz.2023.0155

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Polycrystalline diamond compact (PDC) drill bits are one of the main rock breaking tools in drilling engineering. The performance indexes, such as rock breaking efficiency, wear resistance, thermal stability and impact resistance of PDC bit cutters, have great influence on the application effect of ...

Microstructure and mechanical properties of bonding interface for CBN superabrasive tool using ultrasonic vibration-assisted brazing method

CAI Kaida, ZHAO Biao, WU Bangfu, DING Wenfeng, XU Jiuhua, ZHAO Zhengcai, WEN Xuebing, LI Shaopeng, CHEN Qingliang

2023, 43(5): 568-578. doi: 10.13394/j.cnki.jgszz.2022.0190

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Single-layer brazed cubic boron nitride (CBN) abrasive tools exhibit numerious advantages, such as high abrasive bonding strength, a large chip storage space, and good sharpness, and have been widely used to machine various difficult-to-cut materials in the aerospace field. However, the problems hav...

Effect of WC on microstructure and properties of induction brazing diamond coating

WU Qilong, DONG Xian, ZHANG Lei, ZHONG Sujuan, CHEN Zhiqiang, JIA Lianhui, LUO Lingjie

2023, 43(5): 579-585. doi: 10.13394/j.cnki.jgszz.2022.0205

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The diamond coating was prepared on Q235 steel by adding WC micro-powder to a nickel-based filler metal during induction brazing. The effects of WC powder on the microstructure and wear resistance of the diamond coating were studied. The microstructure and wear resistance of the diamond coating were...

Effect of multi-arc ion plating process on coating performance of cemented carbide PCB milling cutter

YANG Xiaofan, LIN Haiyang, CHEN Yicong, JI Rongjie, SHEN Zhihuang, LI Lingxiang

2023, 43(5): 586-591. doi: 10.13394/j.cnki.jgszz.2022.0123

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The preparation of a high-performance hard coating on the surface of a carbide PCB (Printed Circuit Board) milling cutter can address the issue of rapid tool wear during cutting. In this study, AlCrN single coating, CrN/AlCrN composite coating and AlCrSiN/AlCrN composite coating were prepared on YG0...

Elastic performance prediction and 3D drilling simulation of PW-CFRP

ZHOU Qiang, CHEN Yan, WANG Xiaoyu, ZHANG Chuanchuan, CHEN Xuemei, LIU Yuanji, CHEN Qingliang, GOU Jiangyang

2023, 43(5): 592-603. doi: 10.13394/j.cnki.jgszz.2022.0177

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Plain-woven carbon fiber-reinforced plastic (PW-CFRP) exhibits high damage tolerance and is widely used in the aerospace field. To address the issue that single-scale drilling simulation is difficult to reflect the practical drilling force due to the change in material elastic properties in PW-CFRP ...

Effect of Si₃N₄ substrate surface roughness on the wear resistance of diamond film prepared by HFCVD

WANG He, WEN Kaixiang, YAN Guangyu, WANG Yanxiang, JIN Yifan, SU Peichen

2023, 43(5): 604-611. doi: 10.13394/j.cnki.jgszz.2022.0184

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[OBJECTIVES] Silicon nitride engineering ceramic materials are widely used in microelectronics and wear-resistant components due to their excellent physicochemical properties and mechanical stability under severe working conditions. However, silicon nitride ceramics suffer from brittleness, poor p...

Influence of crystal anisotropy and process parameters on surface shape deviation of sapphire slicing

WANG Chao, GE Peiqi, He Jikai, WANG Xinhui

2023, 43(5): 612-620. doi: 10.13394/j.cnki.jgszz.2022.0207

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Due to the anisotropy of sapphire crystal material, the mechanical properties vary in multi-wire saw slicing based on different cutting positions. This variation leads to the deviation of the diamond wire in the vertical feed direction, resulting in the surface shape deviation of the sapphire wafers...

Modeling of ultra-thin diamond slice and simulation of SiC wafer cutting based on Python language

HE Yan, LI Xiang, GAO Xingjun, FAN Lin, LIU Ming, XU Zicheng

2023, 43(5): 621-631. doi: 10.13394/j.cnki.jgszz.2003.0001

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To address issues like edge collapse and subsurface damage during the cutting process of SiC wafers, a model for cutting SiC wafers with ultra-thin diamond blades was established by combining Python language and Abaqus finite element analysis software. The effects of cutting parameters on cutting fo...

Effect of dressing with form grinding wheel on grinding surface integrity of 18CrNiMo7-6 steel

GAO Wei, LI Mengqi, YIN Huipeng, ZHANG Yinxia, LIU Zhihua

2023, 43(5): 632-639. doi: 10.13394/j.cnki.jgszz.2022.0170

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In order to explore the influence of dressing process parameters, such as dressing depth a_d, axial feed speed f_d and dressing speed ratio q_d, on the grinding surface integrity of 18CrNiMo7-6 gear steel, orthogonal experiments were conducted for shaping dressing process using ceramic bonded chrome co...

Model and experimental verification of grinding surface roughness based on acoustic emission

YIN Guoqiang, FENG Yanchun, HAN Huachao, LI Dongxu, LI Chao

2023, 43(5): 640-648. doi: 10.13394/j.cnki.jgszz.2022.0160

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To predict the surface roughness in the grinding process, an acoustic emission device (AE) was incorporated into the grinding process to monitor the grinding state using AE signals. The variations in AE signal characteristic parameters and frequency spectrum with respect to grinding parameters, such...

Performance of thermal field-assisted precision lapping for single crystal sapphire wafers

XU Yongchao, SUN Jiabao, ZHAN Hao, FU Binjie, ZHAN Youji, ZHENG Tianqing

2023, 43(5): 649-656. doi: 10.13394/j.cnki.jgszz.2022.0203

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To address the issues of poor surface quality and low efficiency in conventional sapphire wafer lapping processing, a thermal field-assisted processing technology was proposed. The influence of thermal field-assistance on sapphire wafer lapping performance was investigated. While controlling the tem...

2023 Vol. 43, No. 5

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