|Table of Contents|

Performance Optimization of Diamond-impregnated Bit for Engineering Ceramic

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2011年03期
Page:
415-421
Research Field:
Publishing date:

Info

Title:
Performance Optimization of Diamond-impregnated Bit for Engineering Ceramic
Author(s):
GAO ChaoYUAN Jun-tangJIN HaoSONG Zhong-quan
School of Mechanical Engineering,NUST,Nanjing 210094,China
Keywords:
engineering ceramics diamond-impregnated bits matrix composition tool life efficiency
PACS:
P634.41
DOI:
-
Abstract:
To improve the drilling efficiency and tool life of diamond-impregnated bits on its drilling of holes in engineering ceramic,this paper studies the bit performance optimally.The wear mechanism of diamond-impregnated bits on its drilling of holes in alumina engineering ceramic is analyzed.With higher quality diamond grains as well as new matrix composition and manufacturing technology being used,four kinds of bits are produced.Drilling tests and scanning electron microscope analysis show:higher quality diamond grains can increase the proportion of working grains and enhance the drilling performance;the four kinds of bits perform different worn performances,the bit with matrix composition of Cu50Co25Sn18Ti7(wt%)shows the higher diamond protrusive heights and higher diamond retention to the matrix,the matching performances of the wearing rates of diamond grains and matrix are good,the comprehensive drilling performance of the bit is the best,and the drilling efficiency and tool life are improved about 1.4 and 7 times than others.

References:

[1] Ho C Y,Lu J K. A closed form solution for laser drilling of silicon nitride and alumina ceramics[J]. J Mater Process Technol, 2003, 140( 1 /3) : 260 - 263.
[2] Deng J X,Lee T C. Surface integrity in electro-discharge machining,ultrasonic machining,and diamond saw cutting of ceramic composites[J]. Ceram Int, 2000, 26( 8) : 825 - 830.
[3] Zhang Q H,Zhang J H, Jia Z X, et al. Material removal rate analysis in the ultrasonic machining of engineering ceramics[J]. J Mater Process Technol,1999,88( 1) : 180 - 184.
[4] Gudimetla P,Wang J,Wong W. Kerf formation analysis in the abrasive waterjet cutting of industrial ceramics[J]. J Mater Process Technol, 2002, 128( 1/3) : 123 -129.
[5] Zhang Q H,Zhang J H,Sun D M,et al. Study on the diamond tool drilling of engineering ceramics[J]. J Mater Process Technol, 2002, 122( 2) : 232 - 236.
[6] 郑雷,袁军堂,李少华. 孕镶金刚石钻头加工工程陶 瓷的性能研究[J]. 南京理工大学学报,2007, 31( 5) : 574 - 578, 584.
[7] 郑雷. 高性能轻质材料及其复合构件的加工技术研 究[D]. 南京: 南京理工大学机械工程学院, 2007.
[8] Luo S Y,Liao Y S,Chou C C,et al. Analysis of the wear of a resin-bonded diamond wheel in the grinding of tungsten carbide[J]. J Mater Process Technol, 1997, 69( 1) : 289 - 296.
[9] 项东,李木森,许斌,等. 镀覆金刚石技术的研究进 展[J]. 超硬材料工程, 2006, 18( 3) : 44 - 49.
[10] 宋月清,孙毓超. 非金属粉末添加剂在弱研磨性石 材切割工具中的应用[J]. 工业金刚石,2005 ( 2) : 26 - 35.
[11] Polini W,Turchetta S. Test protocol for micro-geometric wear of sintered diamond tools[J]. Wear, 2004, 257 ( 3 /4) : 246 - 256.
[12] 徐西鹏,沈剑云,黄辉,等. 花岗石加工用金刚石- 金属复合材料磨损机理研究[J]. 复合材料学报, 1998, 15( 1) : 101 - 107.
[13] 杨俊德. 金刚石钻头和金刚石锯片磨损机理、设计 及性能测试研究[D]. 长沙: 中南大学地学与环境 工程学院, 2004.
[14] 王秦生. 金刚石烧结制品[M]. 北京: 中国标准出版 社, 2000: 193 - 195.
[15] 鲁凡. 超硬地层钻头为什么仍会有相当高的寿命 [J]. 超硬材料与工程, 1997( 2) : 28 - 30, 24.
[16] 黄漫,赵同春,罗锡裕. 金刚石冲击强度及其影响因 素[J]. 粉末冶金工业, 2003, 13( 6) : 1 - 7.
[17] 宋月清,甘长炎,夏志华,等. 金刚石工具胎体性能 的弱化问题研究[J]. 人工晶体学报,1998,27( 4) : 368 - 372.

Memo

Memo:
-
Last Update: 2012-06-30