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2016 Vol. 36, No. 1

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Study on CBN-CBN bonding mechanism in high pressure infiltration sintering of PCBN
LIU Yinjuan, HE Duanwei
2016, 36(1): 1-5. doi: 10.13394/j.cnki.jgszz.2016.1.0001
Abstract(459) PDF 1666KB(13)
Abstract:
Study on CBN-CBN bonding mechanism in the high pressure infiltration sintering of polycrystalline cubic boron nitride(PCBN)was carried out in the CBN-Si system.In the present study,PCBN were sintered under high pressure and high temperature(HPHT)through infiltration method and mixed assembly method,...
Sapphire machined by SiC assisted fixed abrasive lapping
ZHU Lin, ZHU Yongwei, XU Sheng, LI Xinlu, SHEN Qi
2016, 36(1): 6-10,24. doi: 10.13394/j.cnki.jgszz.2016.1.0002
Abstract(462) PDF 1942KB(12)
Abstract:
Owning to insufficient self-conditioning ability affected by tiny chip,sapphire lapped by fixed abrasive pad is limited in industry.SiC particles were added to slurry to assist chips in conditioning pad in this study.Two different pads,one containing diamond abrasives(grain size 20-30 μm)and the oth...
Parameter optimization of sapphire wafer lapping with fixed abrasive pad
ZHENG Fangzhi, ZHU Yongwei, ZHU Nannan, WANG Kai, SHEN Qi
2016, 36(1): 11-15. doi: 10.13394/j.cnki.jgszz.2016.1.0003
Abstract(440) PDF 1131KB(15)
Abstract:
In order to meet the requirements of the high processing efficiency and low damage of sapphire wafer,hydrophilic fixed abrasive lapping technology was adopted.The effects of silicon carbide particle size in matrix,matrix types,diamond particle size and abrasive in the slurry on material removal rate...
Design and manufacture of thin and efficient diamond wire saw
LU: Yongan, HAN Jicheng
2016, 36(1): 16-19. doi: 10.13394/j.cnki.jgszz.2016.1.0004
Abstract(480) PDF 1279KB(26)
Abstract:
In view of economic requirement on cutting precious stones and other materials,a new type of diamond wire saw with ϕ2.0 mm and a new structure,is developed and produced.The new saw is used in marble cutting test to determine sawing parameters and implement performance analysis.Resultsshow that the n...
Analysis on surface roughness in pre-stress hardening grinding process of 40Cr workpiece
LI Shengchao, WANG Yandong, WANG Yushi, ZHANG Xiuming, XIU Shichao
2016, 36(1): 20-24. doi: 10.13394/j.cnki.jgszz.2016.1.0005
Abstract(492) PDF 1410KB(13)
Abstract:
Surface roughness is an important index of surface integrity,which has a significant effect on the performance of mechanical parts.Pre-stress hardening grinding test was carried out on 40 Cr workpiece,during which characteristics and influence factors of surface roughness were studied.The surface ro...
MAX phase-diamond composites fabricated by microwave sintering
LIANG Baoyan, ZHANG Wangxi, WANG Yanzhi, XU Shishuai, WANG Junhe, YAN Shuaishuai, MU Yunchao
2016, 36(1): 25-30. doi: 10.13394/j.cnki.jgszz.2016.1.0006
Abstract(430) PDF 1840KB(18)
Abstract:
MAX ceramic bonded diamond composites were fabricated by microwave sintering from MAX phases and diamond raw powders.The effect of MAX phase and diamond content on phase and micro-structure of composites were studied.The result showed that different coating on the diamond could be obtained after mic...
Influence of distance between filaments on preparation of diamond thick films
ZHAO Zhiyan, ZHOU Mingyu, HAO Chao
2016, 36(1): 31-33. doi: 10.13394/j.cnki.jgszz.2016.1.0007
Abstract(388) PDF 1482KB(11)
Abstract:
Diamond thick films are fabricated by hot filament chemical vapor deposition(HFCVD).The distance between filaments and enclosure are investigated to obtain high quality diamond thick films.By changing the distance between filaments and setting up enclosure,the growth rate can be up to 7.5 μm/h,and t...
Research on precision grinding of ferrite with graphite grinding wheel
ZHANG Bei
2016, 36(1): 34-37,49. doi: 10.13394/j.cnki.jgszz.2016.1.0008
Abstract(461) PDF 1950KB(14)
Abstract:
Graphite white corundum grinding wheel was proposed in this test,which could meet the precision machining requests and simplify the process.The experiment indicated that when the grinding parameters were 24m/s of grinding speed,1-10m/min of workpiece speed,2.5-7.5 μm of cutting depth,the surface rou...
Synthesis and characterization of ϕ58mm polycrystalline diamond compact
LI Sicheng, QU Jilai, FANG Haijiang
2016, 36(1): 38-42. doi: 10.13394/j.cnki.jgszz.2016.1.0009
Abstract(458) PDF 1641KB(31)
Abstract:
The polycrystalline diamond compact with 58 mm diameter was synthesized on domestic cubic press.Scanning acoustic microscope(SAM)analysis showed that there were no defects such as delamination,crack and non-uniform thickness of PCD layer in batch samples.Electrical conductivity and cutting test indi...
Study on dressing technology of super abrasive products
CUI Zhongming, HE Qingshan, FENG Chuangju, WANG Xing
2016, 36(1): 43-49. doi: 10.13394/j.cnki.jgszz.2016.1.0010
Abstract(537) PDF 1829KB(25)
Abstract:
Due to their superior grinding performances,super abrasive grinding wheel greatly promotes the development of grinding technology,especially in grinding difficult-to-process materials,high efficiency grinding and precision grinding.However,it is still in early phase of development and there are same...
Research on domestic BARS cemented carbide anvil
PENG Wen, PENG Wei, KONG Defang
2016, 36(1): 50-56. doi: 10.13394/j.cnki.jgszz.2016.1.0011
Abstract(493) PDF 2925KB(14)
Abstract:
The basic principle of synthesizing of gem-grade diamond using pressless "split sphere" high-pressure apparatus(BARS)was introduced.The property of cemented carbide anvils placed in BARS was presented,as well as the industrializing process of Chinese cemented carbide for BARS.Research showed that us...
Influence of diamond parameters on cutting performance of diamond saw blade
ZHAO Jiong, CHEN Enhou, CHEN Feng, SHAO Qiang, SHAO Junyong
2016, 36(1): 57-60,65. doi: 10.13394/j.cnki.jgszz.2016.1.0012
Abstract(448) PDF 1636KB(31)
Abstract:
Investigations are made on diamond parameters,such as size,concentration and strength,based on filter cutting with metal bond blade to study the influence of these parameters on cutting performance of the blade,namely speed,chipping and blade life.The results show that as diamond size increases,cutt...
Effect of Co on performance and structure of low-temperature Fe-based ceramic/metal composite bonds
MA Jiajia, HOU Yonggai, LI Guangfeng, TIAN Jiugen, ZHOU Qinghai, GAO Yuan
2016, 36(1): 61-65. doi: 10.13394/j.cnki.jgszz.2016.1.0013
Abstract(419) PDF 1244KB(18)
Abstract:
The effect of Co on performance and structure of low-temperature Fe-based ceramic/metal composite bonds was studied.Samples were sintered at 700℃in vacuum.Using mechanical tester,bending strength and impact strength of samples were tested and micro-topography analyzed using XRD and SEM.The results s...
Effect of hot isostatic pressing on performance of diamond tools
ZHAI Xiangle, MENG Yunkai, CUI Hong, YIN Yuhang, TAO Hongliang
2016, 36(1): 66-69. doi: 10.13394/j.cnki.jgszz.2016.1.0014
Abstract(559) PDF 1377KB(24)
Abstract:
Research has been made to study the difference on mechanical property,such as density,hardness,impact strength,flexural strength and cutting performance,of Co powders which are sintered by hot isostatic pressing and traditional hot pressing.The results show that the relative density,impact strength,...
Grinding performance of Ni-coated diamond grinding wheel on cemented carbides
DING Yulong, ZHU Jianhui, XIONG Huajun, FENG Keming, DING Chunsheng, LI Shaojie
2016, 36(1): 70-73. doi: 10.13394/j.cnki.jgszz.2016.1.0015
Abstract(484) PDF 1358KB(24)
Abstract:
To study grinding performance of Ni-coated diamond and non-coated diamond,grinding tests on cemented carbides were conducted to compare the variations of grinding power,grinding ratio,surface roughness of workpieces and wheel surface.The results showed that in condition of using the same grinding pa...
Analysis on surface integrity of GH4169 nickel-based superalloy ground with belt
SUN Chao, ZHANG Guojun, YIN Jiachao
2016, 36(1): 74-78. doi: 10.13394/j.cnki.jgszz.2016.1.0016
Abstract(424) PDF 2871KB(19)
Abstract:
Accumulated abrasive belt was used to grind nickel-based superalloy GH4169 at constant pressure.This method could control the pressure during grinding,so the impact of cutting force on grinding characteristics was reduced.By grinding nickel-based superalloy specimens through orthogonal experiment an...
Thermal conductivity of diamond/copper composites prepared using powder metallurgy
ZHAO Yongzhi, LI Ying
2016, 36(1): 79-82,90. doi: 10.13394/j.cnki.jgszz.2016.1.0017
Abstract(557) PDF 1537KB(32)
Abstract:
To prepare material with higher thermal conductivity,new diamond/copper composite material was hot-pressed using powder metallurgy method with diamond and high purity copper powders.Orthogonal analysis was used to study the influencing factors of thermal conductivity of diamond/copper composite mate...
Study on polishing zinc selenide wafer
DONG Yunna, CAO Shuyun
2016, 36(1): 83-86. doi: 10.13394/j.cnki.jgszz.2016.1.0018
Abstract(400) PDF 1775KB(18)
Abstract:
Chemical mechanical polishing(CMP)method and self-made alumina polishing liquid were used to polish zinc selenide wafer.The polishing experiments were carried out for the influence of particle size of alumina polishing liquid,pH value,type and content of oxidizing agent on the surface state and remo...
Design of ultrathin diamond tool powder feeding system
YUAN Jie, GUO Shuyi
2016, 36(1): 87-90. doi: 10.13394/j.cnki.jgszz.2016.1.0019
Abstract(421) PDF 972KB(30)
Abstract:
In the manufacturing of ultrathin diamond tools by the press-sinter process,the distribution uniformity of diamond powder,matrix and alloy filler in the mold has a great impact on the finally using performance of the diamond tool.At present,domestic enterprises generally finish the mix by manually,w...
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