scholarly journals Diamond Grinding Technology of Flexural Strength Test Pieces of Super hard, Brittle, Composite-ceramic Materials and Technological Equipment

Author(s):  
David Butskhrikidze ◽  

At the present stage of the revolutionary development of technologies, scientists from the leading countries of the world are working intensively to create qualitatively new materials whose physical-mechanical, electrical, thermal or other properties far exceed the basic constructions, armament or other metals used. Such materials are surface, brittle, composite ceramic materials (based on oxide and carbide ceramics, state-of-the-art surface compositions, polycrystalline diamond + Si  SiC and etc.). A progressive process for diamond grinding test samples from composite ceramic materials to determine the bending strength is discussed. The proposed technological process is based on an original and effective method for polishing the flat surfaces of articles made of difficult-to-process and composite materials - low-temperature precision grinding (LPG). Based on the results of many years and multilateral studies in the field of diamond processing of various non-metallic, composite and ceramic materials, optimum conditions for diamond polishing of mentioned materials have been determined and recommended. Technological equipment and equipment for processing composite and ceramic materials are also disclosed.

Author(s):  
David Butskhrikidze ◽  

In developed countries, material scientists are working intensively to create high-strength (metallic) technical ceramics. If such a material is created, it will be possible to manufacture such parts of power units (transmissions) of cars as shafts, turbines, etc. In the future, the latest composite ceramic materials with unique properties will gradually replace metals in the production of machine parts. Special device for diamond grinding of articles from composite, non-metallic, brittle materials (technical ceramics on the base of SiC, Al2O3; polycrystalline diamond, composite – Si + SiC + diamond etc.) is a universal flat grinding machine that enables to grind with high productivity both supporting main surfaces and lateral side surfaces – perimeter of an article of prismatic shape. It is also possible to grind substrates of other configurations – round, oval, etc. Grinding depending on sizes of articles can be done of both single and group of articles. The grinding takes place by the means of spring feeding of the article by pneumatic system that enables to prevent breakage of articles from brittle non-metallic materials in process of machining and obtain maximum high quality of the machined surface.


2010 ◽  
Vol 80 (4) ◽  
pp. 742-748 ◽  
Author(s):  
Y. A. Aleksandrov ◽  
E. I. Tsyganova ◽  
V. M. Shekunova ◽  
I. I. Didenkulova ◽  
I. A. Pishchurova ◽  
...  

2012 ◽  
Vol 69 (5-6) ◽  
pp. 178-180 ◽  
Author(s):  
D. O. Lemeshev ◽  
N. A. Makarov ◽  
K. I. Ikonnikov

Refractories ◽  
1995 ◽  
Vol 36 (8) ◽  
pp. 235-237
Author(s):  
A. V. Galakhov ◽  
G. A. Pankov ◽  
G. A. Fomina

2007 ◽  
Vol 33 (4) ◽  
pp. 379-386 ◽  
Author(s):  
V. R. Khrustov ◽  
V. V. Ivanov ◽  
Yu. A. Kotov ◽  
A. S. Kaigorodov ◽  
O. F. Ivanova

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