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【期刊论文】Decomposition and reconstitution principle for complexsurfaces and its applications*
艾兴, HUANG Kezheng, AI Xing and ZHANG Chengrui
SCIENCE IN CHINA (Series E) 1997, 40 (1): 89~96,-0001,():
-1年11月30日
Though there are already a varlety of models for comples, they are not so convenientneeded in practice. A hlerchical model and the principle of decomposition and reconstitution for complex surfaceshave beem proposed, which have the potential to enhance the support of automated design systems on creative work intelligently. Then the progress made is discused involving the application of the new principle in the following threeareas; conugation sudace calculation, tool path generation in numercally controlled machining, and maching proccessinnovation By re-recognition.
CAD/, CAM,, conjugating surface,, adaptability,, decomposition.,
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【期刊论文】STUDY ON THE CRITERION FOR CERAMIC TOOL FRACTURE ININTERMITTENT STEEL TURNING
艾兴, Ai Xing, Xia Chuanbo
CHINESE JOURNAL OF MECHANICAL ENGINEERING, 1990 3 (1): 1~8,-0001,():
-1年11月30日
A new criterion of fracture mechanics-stochastic characteristics for ceramic tool fracture based on the analysis of its fracture features in intermittent turning, is proposed in the paper. A series of experiments on mechanical performance for ceramic tool as well as cutting tests on tool life by fracture have been done. The stresses in tool tip are analysed by finite element method Allof these show that the modified distribution function of theoretical tool life by fracture derived from the mentioned new criterion presents a good agreement with the experimental results, SEM analysis on the tool fracture faces indicates the late fracture of ceramic tool appears in fatigue features
Ceramic tool Criterion of fracture Fracture mechanics Fracture mechanism Tool life by fracture
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【期刊论文】Toughening and Strengthening of the New Ceramic Cutting Tool Material JX-2
艾兴, X. Ai and C.Z. Huang
Key Engineering Materials Vols. 108-110 (1995) pp. 211-218,-0001,():
-1年11月30日
A new ceramic cutting fool material has been developed by means of silicon carbide whisker (SiCw) reinforcement and silicon carbide particle (SiCp) dispersion. The material has the advantage of high bending strength and fracture tougbness. Compared with the mechanical properties of Al2O3(A), Al2O3/SiCp(AP), Al2O3/SiCw(AW), Al2O3/SiCw(JX-1) and Al2O3/SiCp/SiCw(JX-2), it confirms that JX-2 composite has obvious additive effect of both reinforcing and toughening. The reinforcing and toughening mechanisms of JX-2 composite have been studied based on the analysis of thermal-expansion mismatch and the observation of microstructure, Synergistic effects of toughening and strengthening for JX-2 have been researched systematically.
New Ceramic Tool,, Alumina,, Silicon Carbide Whisker Reinforcing,, Sihcon Carb,, deParticle Dispersion,, Synergistic Effect
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【期刊论文】Development and Perspectives of Advanced Ceramic Tool Materials
艾兴, X. Ai, Z.Q. Li and J.X. Deng
Key Engineering Materials Vols. 108-110 (1995) pp. 53-66,-0001,():
-1年11月30日
A review of advanced ceramic tool material, including its development, app]ication and the new trend in research, is offered in this article. As one of the most important tool materials to be used in the next century, advanced ceramic material has great potential and broad prospects. The major subject in the future study is the development of new type of ceramic tool material and finding ways to increase its strength and toughness as well as its reliability. The imperative task at present is how to popularise ceramic tools and how to use them more efficiently and reasonably.
Ceramic Tool Material,, Alumina,, Silicon Nitride,, Composite,, Development and Perspective
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【期刊论文】STUDY ON TEE CRITERION FOR CEHENTED CARBIDE TOOL FRACTURR AT ELEVATED TEMPERATURE*
艾兴, Ai Xing, Mu Jianqiang
TRANSFORMATION OF SCIBNCB AND TBCHNOLOGY INTO PRODUCTIV B POWBR Proceedinge of the 11th International Conference on Production research (ICPR), 1991,-0001,():
-1年11月30日
A new criterion of fracture mechanics-stochastic characteristics for cemented carbide tool fracture in consideration of cutting temperature effect is proposed in the paper. Experimental results show that the theoretical tool life by fracture obtained from the criterion proposed for tool fracture presents a good agreement with the experimental one.
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