金刚石与磨料磨具工程

Simulation analysis and optimism design on cutter parameters of PCD saw blades

DENG Fuming, LIU Jialin, DENG Wenli, KONG Lingyin, YAN Xiao, LU Xuejun

2016, 36(2): 1-5. doi: 10.13394/j.cnki.jgszz.2016.2.0001

Abstract(500)

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Abstract:
The cutter parameters of PCD wood cutting circular saw blades play a decisive role in the cutting process.They directly affect the machining surface quality and tool life.Simulation analysis of the cutting force and deformation of different cutter parameters of PCD wood circular saw blades is carrie...

Study on chemical mechanical polishing of 304 stainless steel sheet based on alkaline polishing slurry

CHEN Jiapeng, CHEN Shaokun, LI Qing, QIN Hongquan, SU Jianxiu

2016, 36(2): 6-9,23. doi: 10.13394/j.cnki.jgszz.2016.2.0002

Abstract(536)

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Abstract:
To improve the effect of chemical mechanical polishing(CMP),the influence of oxidant and pH value on the material removal rate(MRR)and surface roughness has been studied.The results show that different oxidants obtain maximum MRRs at different optimal pH values,namely 181nm/min for hydrogen peroxide...

Effect of machining allowance on machining quality in honing nickel-base superalloy

DONG Hongliang, YANG Zhangyong, GAO Shaowu, FU Yucan, ZHOU Xiaowei, LIU Zhong

2016, 36(2): 10-14. doi: 10.13394/j.cnki.jgszz.2016.2.0003

Abstract(361)

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Abstract:
For typical difficult-to-machine materials of nickel-base superalloy GH4169,honing experiments are carried out to study the hole surface roughness and cylindricity.Resultsshow that the surface roughness decreases gradually and tends to be stable as honing continues when honing GH4169 using metal bon...

Wear experiment of single brazed diamond abrasive

HUANG Wu, SU Honghua, ZHANG Kun, XU Jiuhua

2016, 36(2): 15-18. doi: 10.13394/j.cnki.jgszz.2016.2.0004

Abstract(450)

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The wear characteristics of diamond and CBN grit are studied using single grit test with carbon steel plate wheel as dressing tools.The results show that the relative velocity of grinding wheel to dressing wheel has an important effect on wear of diamond grits.The abrasive wear reaches 50.1 μm when ...

Simulation of micro contact based on interacting force in self rotating grinding of silicon wafer

REN Qinglei, WEI Xin, XIE Xiaozhu, HU Wei

2016, 36(2): 19-23. doi: 10.13394/j.cnki.jgszz.2016.2.0005

Abstract(563)

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Abstract:
Self rotating grinding with cup diamond wheel is a typical ultra precision grinding process for silicon wafer.The simulation model based on the force of micro contact between wheel micro unit and silicon wafer is established from the stable ductile grinding process.Micro contact process of self rota...

Preparation of nanocrystalline diamond film vacuum window

GAO Pan, MA Zhibin, WU Chao, WANG Chuanxin, FU Qiuming, WANG Jianhua

2016, 36(2): 24-26,36. doi: 10.13394/j.cnki.jgszz.2016.2.0006

Abstract(475)

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Abstract:
A new nanocrystalline diamond film is prepared in C₂H₆O/H₂ using self-made microwave plasma chemical vapor deposition(MPCVD)system.The nanocrystalline diamond film is deposited on the surface of(100)-oriented Si wafer.Then a nanocrystalline diamond vacuum window is achieved after the silicon wafer i...

Research on resin diamond wire made in China

WANG Xuefeng, LI Yaozheng, WU Donggang, WANG Haibin

2016, 36(2): 27-31. doi: 10.13394/j.cnki.jgszz.2016.2.0007

Abstract(404)

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Abstract:
By comparing the performance of steel wire samples made in China and abroad,a Chinese steel wire for experiment is selected.Based on this steel wire,surfactant and acid used in surface treatments are selected.Finally,resin diamond wires are produced with domestic and foreign steel wires respectively...

Contrastive study on diamond wire saw cutting with/without ultrasonic vibration

ZHANG Liaoyuan, ZHAO Yan, MA Kangle, SHANG Mingwei

2016, 36(2): 32-36. doi: 10.13394/j.cnki.jgszz.2016.2.0008

Abstract(468)

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Abstract:
On the basis of a large number of literatures summarized,processing experiment is carried out using diamond wire saw to cut workpieces with/without ultrasonic vibration.The results show that with the increase of linear velocity,sawing force becomes smaller and that with the increase of feed speed sa...

Research on drilling technology of quartz fiber reinforced ceramic matrix composites

RAN Chong, LU Shouxiang, WANG Dongpo, ZHAO Tong, GAO Hang

2016, 36(2): 37-42,48. doi: 10.13394/j.cnki.jgszz.2016.2.0009

Abstract(509)

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For the existing troubles of carbide tool(serious tool wear,poor machining quality,low efficiency)when processing quartz fiber reinforced ceramic matrix composites,cutting force effect on the hole quality is analyzed in this paper by comparing the machining effects of carbide tool,PCD tool and elect...

Research on drill-grinding silicon nitride ceramic with thin-wall brazed diamond drill

DING Jin, DONG Hai, BAI Hepeng, ZHANG Ye

2016, 36(2): 43-48. doi: 10.13394/j.cnki.jgszz.2016.2.0010

Abstract(443)

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Abstract:
Silicon nitride ceramic was drill-ground with single-layer brazed diamond thin-wall drill.Firstly,the removal mechanism of silicon nitride ceramic was studied,which mainly included brittle removal and ductile regime removal,and brittle removal was the main removal mechanism.Secondly,the influence of...

Effect of nanometer Ti(C,N)on property of vitrified bond for CBN abrasives

CHEN Feixiao, ZHAO Zhiwei, HU Wenmeng

2016, 36(2): 49-54. doi: 10.13394/j.cnki.jgszz.2016.2.0011

Abstract(444)

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Na₂O-Al₂O₃-SiO₂-B₂O₃ based vitrified bond was selected as the main research subject.Vitrified bond for nanometer titanium carbonitride could be obtained by adding 2%,4%,6% and 8%mass fraction nano-Ti(C,N)into the basic glass material.The flexural strength values were gained by CMT4504 electronic mul...

Experimental study on cutting depth of hard alloy by abrasive water jet

SONG Jinlai, GUAN Yancong, ZHAO Hongwei, SUN Yanbin

2016, 36(2): 55-59. doi: 10.13394/j.cnki.jgszz.2016.2.0012

Abstract(482)

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By cutting experiments of hard alloy using high pressure abrasive water-jet,the influences of jet pressure,cutting speed,abrasive flow rate and target distance on the cutting depth are analyzed using single factor method.Based on the single factor tests,the levels of these factors are selected for o...

Optimized design of reduction angle of PCD wire drawing die based on energy consumption calculation

LU Xuejun, LIU Jialin, KONG Lingyin, WANG Ruixue, DENG Fuming

2016, 36(2): 60-63. doi: 10.13394/j.cnki.jgszz.2016.2.0013

Abstract(506)

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In die drawing,the energy consumption of compress deformation and friction is analyzed,as well as that of velocity change at the diameter transition zone in the process of wire drawing.The upper bound theorem is applied to derive the formula of the above three energy consumption in drawing process,t...

Research on reasonable parameters to process ceramic material with diamond tools

SUN Lingfu, ZHAN Zhongxue, LIU Guozhong, SUN Quanxi, LIU Zelin, LI Haibao, ZHENG Hongwei

2016, 36(2): 64-66. doi: 10.13394/j.cnki.jgszz.2016.2.0014

Abstract(501)

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Abstract:
When used to drill ceramic,diamond tools tend to convulse if rotation reaches a certain speed leading to blade failure and tool damage.To fix this problem,three kinds of cutting tools,namely φ24,φ60 and φ90 mm,are experimented to obtain the rotation speed before broken.Resultsshow that the optimum r...

Study on hot pressing sintering behaviors and properties of Cu-Sn pre-alloy powder high Sn content

CAO Caiting, LIU Yibo, XU Liang, SHEN Ningning, LIU Zhihai

2016, 36(2): 67-72. doi: 10.13394/j.cnki.jgszz.2016.2.0015

Abstract(543)

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In order to study the influence of sintering process on the properties of Cu-Sn pre-alloy powder with high Sn content,orthogonal experiment was carried out.The influence factors and optimal parameters were determined using range analysis method,and the experimental results were compared using SEM,mi...

Research on composition analysis of metal bond superabrasive products

LUO Miaodi, WANG Juntao, BAO Hua, ZHANG Yi, QIAO Qian

2016, 36(2): 73-77. doi: 10.13394/j.cnki.jgszz.2016.2.0016

Abstract(556)

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Chemical analysis is qualitative,quantitative and structural analysis on the complex mixture,which is characterized by combining a variety of methods of separation and analysis,namely "comprehensive analysis".This comprehensive analysis is the most exploratory and challenging scientific discipline.A...

Progress and development on impregnated diamond bit for ultrahard compact and weak-abrasion rock formation

WANG Jialiang, ZHANG Shaohe

2016, 36(2): 78-83,88. doi: 10.13394/j.cnki.jgszz.2016.2.0017

Abstract(506)

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The diamond bit trends to slip when drilling ultra-hard compact and weak-abrasion rock formation.This paper analyzes the characteristic of ultra-hard compact and weak abrasion rock formation,expounds the reason of bit slipping and introduces the research progress of recent years from 4 aspects,namel...

Determination of urotropine in phenolic resin powder used in abrasive tools by infrared spectrometry

SUN Rufang, LUO Miaodi, QIAO Qian, CHEN Feng, BAO Hua, ZHANG Yi

2016, 36(2): 84-88. doi: 10.13394/j.cnki.jgszz.2016.2.0018

Abstract(441)

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Abstract:
There is high sensitivity of infrared spectrum for urotropine and no interference between the infrared absorption peaks of urotropine(1007 cm^-1)and commercial phenolic resin powder(1509 cm^-1).So,it is feasible to determine the content of urotropine in phenolic resin powder used in abrasive tools by ...

2016 Vol. 36, No. 2

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