Nano-grooving by Using Multi-tip Diamond Tools

2018 ◽  
pp. 97-137
Author(s):  
Xichun Luo ◽  
Zhen Tong
Keyword(s):  
Diamond Tools

The use of high-resolution methods of research in the design of the diamond-matrix interface to increase the durability of the diamond tool

2020 ◽  
Vol 86 (6) ◽  
pp. 62-71
Author(s):  
P. P. Sharin ◽  
S. P. Yakovleva ◽  
M. P. Akimova ◽  
V. I. Popov
Keyword(s):  
High Resolution ◽  
Diamond Tool ◽  
Diamond Surface ◽  
Matrix Interface ◽  
Reaction Products ◽  
Diamond Tools ◽  
Functional Composites ◽  
Mechanical Adhesion ◽  
Carbide Matrix ◽  
Diamond Retention

The results of studying fundamental and applied problems regarding the formation of boundary layers between diamond and carbide matrix are presented with the goal to develop a highly resistant diamond tool. The new approaches to the synthesis of diamond-carbide materials combining diamond metallization and sintering in a single-stage technology are presented. The developed technology eliminates the re-heating of a metallized coatings which results in their destruction and enhanced graphitization of diamond (these phenomena restrict using metallization procedure to improve diamond retention and synthesis of high-functional composites for diamond tools). The goal of the study is analysis the structural and phase state of the «diamond – carbide matrix» interface in a diamond tool obtained by the new technology and the main factors determining the level of diamond retention in the presence of a metallized coating. Unique opportunities provided by modern high-resolution methods of research were used in the study. The elemental composition and morphological features of the diamond-matrix interface were studied using the methods of scanning electron microscopy, atomic force microscopy, X-ray microanalysis and Raman spectroscopy. Identification of the reaction products, including non-diamond carbon was performed. It is shown that the introduction of the powder-metallizer significantly modified the contact boundaries and provide conditions for improving the chemical and mechanical adhesion of the diamond-matrix system. The formation of the well-developed nano- and sub-microscale roughness of the diamond surface and dense filling of the existing voids with nanoscale layers of metal-infiltrate was revealed. The multilevel organization of highly structured elements of the transition zone with the minimal graphitization ensured the monolithic character and strength of the diamond-matrix bond. Comparative service tests of preproduction and control samples of diamond dressers proved the efficiency of developed hybrid technology (the specific performance of diamond tools increased by 39 – 45%). New fundamental and applied results have been obtained in the field of studying interface zones in crystalline multiphase systems that can be used to regulate adhesion phenomena at the interphase boundaries and develop highly efficient composite materials.

Relevance of laser touch-dressed diamond tools for the dressing performance of vitrified-bonded silicon carbide wheels

2012 ◽  
Vol 5 (1) ◽  
pp. 48 ◽  
Author(s):  
Robert Transchel ◽  
Claus Dold ◽  
Mohammad Rabiey ◽  
Konrad Wegener
Keyword(s):  
Silicon Carbide ◽  
Diamond Tools

Development of Diamond–Metal Compositions for Diamond Tools

2020 ◽  
Vol 14 (3) ◽  
pp. 639-642
Author(s):  
E. N. Kozyrev ◽  
V. K. Kumykov ◽  
A. S. Kushhabiev ◽  
A. R. Manukyants ◽  
Y. N. Kasumov ◽  
...  
Keyword(s):  
Diamond Tools

Ion beam machining of single-point diamond tools for nano-precision turning

1990 ◽  
Vol 1 (1) ◽  
pp. 44-49 ◽  
Author(s):  
I Miyamoto ◽  
T Ezawa ◽  
K Nishimura
Keyword(s):  
Ion Beam ◽  
Single Point ◽  
Diamond Tools ◽  
Precision Turning

scholarly journals Evaluation of Wear Behaviour in Metallic Binders Employed in Diamond Tools for Cutting Stone

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 3988
Author(s):  
Fátima Ternero ◽  
Pedro M. Amaral ◽  
Jorge Cruz Fernandes ◽  
Luís Guerra Rosa
Keyword(s):  
Wear Behavior ◽  
Wear Behaviour ◽  
Empirical Expression ◽  
Testing Conditions ◽  
Diamond Tools ◽  
Test Methodology ◽  
Different Types ◽  
Stone Material ◽  
The Difference ◽  
Wear Tests

A type of disc-on-plate test methodology was used to determine the wear behavior of metallic binders employed in the manufacturing of diamond impregnated tools. The disc consists of a special circular wheel that allows the binder materials alone (i.e., without diamond, but sintered under conditions identical to those of the complete tool) to be tested against a plate of stone material under pre-determined testing conditions. The testing conditions are intended to be equivalent to those used in the industrial processes. Using plates of five types of granite and one type of marble, this work comprises wear tests of 15 different types of metallic binders and two sintering modes conducted under, at least, three different values of contact-force. The analysis of the results demonstrated that the wear of the binders can be related to their mechanical properties through an empirical expression. The larger the difference between the characteristics of the tribological pair (binder versus stone), the higher is the correlation between the experimental wear data and the values given by the empirical expression. The relationships presented in this work allow predicting the wear behavior of the binder, and therefore may help in the design process of diamond tools. There was a clear difference between the wear behavior of metallic binders when they were employed against the two main classes of stone under analysis (marble and granite).

scholarly journals Improvement in Hardness and Wear Behaviour of Iron-Based Mn–Cu–Sn Matrix for Sintered Diamond Tools by Dispersion Strengthening

Materials ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1774
Author(s):  
Elżbieta Cygan-Bączek ◽  
Piotr Wyżga ◽  
Sławomir Cygan ◽  
Piotr Bała ◽  
Andrzej Romański
Keyword(s):  
Wear Resistance ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Base Material ◽  
Wear Behaviour ◽  
Matrix Composites ◽  
Diamond Tools ◽  
Abrasion Wear ◽  
Sintered Diamond ◽  
Abrasive Stone

The work presents the possibility of fabricating materials for use as a matrix in sintered metallic-diamond tools with increased mechanical properties and abrasion wear resistance. In this study, the effect of micro-sized SiC, Al2O3, and ZrO2 additives on the wear behaviour of dispersion-strengthened metal-matrix composites was investigated. The development of metal-matrix composites (based on Fe–Mn–Cu–Sn–C) reinforced with micro-sized particles is a new approach to the substitution of critical raw materials commonly used for the matrix in sintered diamond-impregnated tools used for the machining of abrasive stone and concrete. The composites were prepared using spark plasma sintering (SPS). Apparent density, microstructural features, phase composition, Young’s modulus, hardness, and abrasion wear resistance were determined. An increase in the hardness and wear resistance of the dispersion-strengthened composites as compared to the base material (Fe–Mn–Cu–Sn–C) and the commercial alloy Co-20% WC provides metallic-diamond tools with high-performance properties.

Dressing Technology on the Diamond Abrasive Grinding Wheels Using the Rotary Diamond Dresser

2009 ◽  
Vol 416 ◽  
pp. 234-237
Author(s):  
Zhong Ming Cui ◽  
Peng Hui Deng ◽  
Lei Du
Keyword(s):  
Single Point ◽  
Grinding Wheels ◽  
Dressing Method ◽  
Diamond Tools ◽  
Diamond Grinding ◽  
Dressing Tool ◽  
Dressing Force ◽  
Diamond Abrasive ◽  
Better Than

The dressing processes are conducted on the diamond grinding wheels using the rotary diamond tools and compared between the single point diamond dresser and the rotary diamond dressing tool in the following aspects, including the dressing force, tool wearing, dressing efficiency. The result shows that, the dressing performance of the rotary diamond tools is remarkable better than that of the conventional dressing method.

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