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2022 Vol. 42, No. 2

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Research on grinding of biological tissue
WU Maozhong, WANG Chengyong, ZHENG Lijuan, CHEN Zhihua, LIU Zhihua
2022, 42(2): 137-149. doi: 10.13394/j.cnki.jgszz.2021.0123
Abstract(2257) HTML (855) PDF 13209KB(136)
Abstract:
Grinding of biological tissue is essentially using fine abrasive grains to remove soft and hard tissues in a small amount and multiple times to ensure the precision and safety of the operation. However, as an energy-intensive processing method, grinding may produce excessive heat and force during pr...
Design and function of cold trap in the process of preparing diamond films by DC arc plasma jet chemical vapor deposition
CHEN Liangxian, SHAO Siwu, LIU Peng, AN Kang, ZHENG Yuting, HUANG Yabo, BAI Mingjie, ZHANG Jianjun, LIU Jinlong, WEI Junjun, LI Chengming
2022, 42(2): 150-155. doi: 10.13394/j.cnki.jgszz.2021.0113
Abstract(1000) HTML (798) PDF 3626KB(71)
Abstract:
Firstly, this experiment introduces the principle of the DC arc jet method, the design of the gas circulation system and its advantages and disadvantages. Secondly, the design of the cold trap system and its working principle are introduced in detail. Finally, Raman spectroscopy and Fourier transfor...
Preparation of polycrystalline diamond films by MPCVD at high plasma power density
HE Zhongwen, MA Zhibin
2022, 42(2): 156-161. doi: 10.13394/J.cnki.jgszz.2021.0121
Abstract(1470) HTML (418) PDF 4072KB(122)
Abstract:
Through the self-made MPCVD dual-substrate platform equipment, the microwave power was 1 400 W and the pressure was medium to high, the plasma power density was 357.5～807.4 W/cm3, the substrate temperature was 850 ± 30 ℃, the volume fraction of CH4 was 1.0%～1.5% and the deposition rate was 1～8 μm/h,...
A review of preparing binderless PcBN at high temperature and high pressure
WANG Chuqi, KOU Zili
2022, 42(2): 162-168. doi: 10.13394/j.cnki.jgszz.2021.0409
Abstract(920) HTML (387) PDF 5895KB(70)
Abstract:
Polycrytalline cubic boron nitride, PcBN for short, has the advantages of large size, isotropy and no cleavage plane so that it is widely used. Commercial PcBNs are generally sintered with binders to reduce sintering conditions to pressures ranging from 5.5 to 7.7 GPa and temperatures of 1600 to 230...
Research on Cr coating layer inhibiting oxidation of diamond in diamond/Al-borosilicate glass composites
ZHANG Xianghong, WANG Yanhui, ZANG Jianbing, ZHANG Jinhui
2022, 42(2): 169-173. doi: 10.13394/j.cnki.jgszz.2021.0924
Abstract(662) HTML (423) PDF 3423KB(28)
Abstract:
The inhibiting effect of Cr coating on diamond oxidation in diamond/Al-borosilicate glass composites was studied. Coated diamonds with different Cr layer thickness was sintered with Al-borosilicate glass at the same process. The samples were tested and observed for volume expansion rate, bending str...
Effect of sodium dodecyl benzene sulfonate on vitrified bond and dispersion of diamond
LIU Yibo, KONG Shuaifei, LI Zhengxin, XU Qiang, CHEN Chunhui
2022, 42(2): 174-179. doi: 10.13394/j.cnki.jgszz.2021.0111
Abstract(826) HTML (511) PDF 3739KB(51)
Abstract:
Vitrified bonds and the mixed powders of diamond and vitrified bonds are prepared by sol-gel and corresponding bulk composites are fabricated. The effect of mass fraction of dispersant (sodium dodecyl benzene sulfonate) ranged from 0 to 4.02% on property of vitrified bond is studied, including compo...
Effect of iron-base amorphous powder on diamond tool matrix
LI Mingfeng, FANG Xiaohong, DUAN Longchen, TAN Songcheng
2022, 42(2): 180-185. doi: 10.13394/j.cnki.jgszz.2021.0115
Abstract(795) HTML (423) PDF 3417KB(46)
Abstract:
The Fe-based amorphous powders with different mass fractions of 0, 5%, 10% and 15% were added to the matrix of Fe-based prealloyed powder. After the matrix sample was made by hot pressing sintering, the Rockwell hardness, the flexural strength and the wear rate were tested. For the sample without po...
Surface morphology characterization of fixed abrasive lapping pad based on deep learning
HU Weidong, WANG Zhankui, Dong Yanhui, ZHANG Zhao, ZHU Yongwei
2022, 42(2): 186-192. doi: 10.13394/j.cnki.jgszz.2021.0096
Abstract(762) HTML (468) PDF 3951KB(39)
Abstract:
The surface morphology of fixed abrasive (FA) lapping pad is closely related to its processing performance. In order to understand the surface morphology of the FA lapping pad better, particularly diamonds, pores, and pits resulting from diamond falling off, a deep learning-based method for characte...
Study on grinding force in grinding titanium alloy with diamond grinding wheel
FENG Ru
2022, 42(2): 193-200. doi: 10.13394/j.cnki.jgszz.2021.0120
Abstract(1103) HTML (487) PDF 3419KB(88)
Abstract:
To solve the problems of low elastic modulus and large elastic deformation when grinding titanium alloy with diamond grinding wheel, the force of grinding wheel was analyzed theoretically. Based on the chip separation criterion and the material friction properties, the cutting force model of titaniu...
Influence of grinding lubrication methods on surface integrity of nickel-based single crystal superalloy
SUN Yongjie, ZHU Tao, CAI Ming, ZHANG Yuxuan, FAN Chenrui, AN Zhixin
2022, 42(2): 201-207. doi: 10.13394/j.cnki.jgszz.2021.0114
Abstract(1068) HTML (487) PDF 6162KB(58)
Abstract:
To improve the grinding surface quality of nickel-based single crystal superalloy DD5, the influence of three grinding methods (dry, conventional flood, minimal quantity lubrication) on their surface integrity was investigated using single factor experiment. The results show that under different coo...
Flatness prediction of single pendulum polishing based on microelement material removal model
LI Kaixuan, LI Jun, XIONG Guanghui, WU Cheng, YU Ningbin, GAO Xiujuan
2022, 42(2): 208-215. doi: 10.13394/j.cnki.jgszz.2021.0116
Abstract(853) HTML (507) PDF 4495KB(27)
Abstract:
A microelement material removal model was proposed to explore the influence of single pendulum parameters on the polishing flatness of workpiece. Based on the coupling of velocity and pressure distribution, the model could predict the polishing flatness. Starting from the material removal of single ...
Optimization of process parameters for finishing the bottom surface of inner groove by magnetic grinding
CHEN Fayu, SUN Yuli, WANG Liaoyuan, ZHANG Peng, SHENG Yi, NISHIKAWA Naohiro
2022, 42(2): 216-222. doi: 10.13394/j.cnki.jgszz.2021.0122
Abstract(852) HTML (485) PDF 3927KB(30)
Abstract:
To improve the efficiency and effect of magnetic grinding the bottom surface of inner groove and seek a solution of finishing inner groove of the special-shaped waveguide, the orthogonal test was used to investigate the effect of three major process parameters, namely steel grit size, process gap an...
Effect of Fe3O4 characteristics on properties of solid-phase Fenton reaction lapping pellets for single-crystal SiC
LU Jiabin, CAO Jiyang, DENG Jiayun, YAN Qiusheng, HU Da
2022, 42(2): 223-232. doi: 10.13394/j.cnki.jgszz.2022.0008
Abstract(837) HTML (515) PDF 8576KB(38)
Abstract:
To improve the lapping quality and processing efficiency of single-crystal SiC, solid-state Fenton reaction lapping pellets were prepared. Effects of characteristics of Fe3O4 (particle size and mass fraction) solid-phase catalyst on hardness, flexural strength, porosity, catalytic performance, and l...
On-line discrimination of radial runout state during diamond roller trimming
FU Tingbin, ZHU Zhenwei, ZHANG Rui, ZHAO Huadong
2022, 42(2): 233-239. doi: 10.13394/j.cnki.jgszz.2021.0119
Abstract(631) HTML (356) PDF 3672KB(35)
Abstract:
The performance of diamond roller when dressing grinding wheel was affected by its radial runout, but the intelligent degree of judging its radial runout state was low. Therefore, an on-line detection method based on wavelet decomposition and SVM was proposed for the grinding acoustic emission signa...
Analysis and optimization of traveling wave resonance of diamond circular saw blade
ZHAO Lei, ZHANG Dechen, YAN Chunbao, LEI Zhongxing, CHENG Libin
2022, 42(2): 240-247. doi: 10.13394/j.cnki.jgszz.2021.0112
Abstract(774) HTML (366) PDF 5211KB(33)
Abstract:
To solve the resonance and the noise problems of diamond circular saw blades during operation, the workbench software was used to analyze the traveling wave resonance and the static force of the idling circular saw blade with the diameter of 600 mm, and the effects of openings and interlayers in the...
Design and simulation analysis of rust removal grinding block on inner wall of elbow at constant pressure
LI Dengchao, ZHANG Pingkuan, LI Shunshun
2022, 42(2): 248-254. doi: 10.13394/j.cnki.jgszz.2021.0118
Abstract(685) HTML (478) PDF 3328KB(26)
Abstract:
To remove the embroidery layer on the inner wall of the elbow before coating, three kinds of grinding blocks, namely Block A, Block B and Block C, were designed to act on the 100-mm-diameter elbow. The removal result of the embroidery layer on the inner wall of the elbow bend was analyzed by using t...
Quick review of topic reports on the 16th China-Japan International Conference on Ultra-Precision Machining Process
2022, 42(2): 255-256.
Abstract(808) HTML (379) PDF 308KB(52)
Abstract:
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