Obrabotka metallov

OBRABOTKA METALLOV

METAL WORKING AND MATERIAL SCIENCE
Print ISSN: 1994-6309    Online ISSN: 2541-819X
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Recent issue
Vol. 27, No 3 July – September 2025

A comparative analysis of the efficiency of ceramic and bakelite bonded grinding wheels

Issue No 2 (71) April - June 2016
Authors:

Alexeev N. S.,
Kaporin V. A.,
Ivanov S. V.
DOI: http://dx.doi.org/10.17212/1994-6309-2016-2-21-27
Abstract
Grinding of nickel and iron based wear-resistant microporous coatings is marked to have low grindability and is accompanied by a rapid loss of cutting capacity of the abrasive wheels due to the high intensity of thermal power process, intensive wear and wheels smearing. In the grinding operation the performance of the abrasive grains largely depends on the strength of its retention in the disc, i.e. the type and number of bond. In consideration of the low thermal conductivity and the tendency of micro porous coatings to burn during grinding, it is particularly important to minimize friction costs. This requirement can be met by a choice of more antifriction material of the bonds while meeting the requirements of a sufficiently reliable fastening of the abrasive grains in the wheel.

The research data on the cutting ability of wheels of aluminum oxide and silicon carbide with a ceramic and bakelite bond for rough grinding of nickel and iron based microporous coatings are presented in the article. Redress life and process efficiency are established, grinding power strain, energy demands and other indicators are investigated. The findings of the feasibility of the transition to the use of an abrasive tool with a ceramic bond, which allows increasing the wheels resistance and processing performance while reducing power strain of the grinding process and energy demands compared with wheels on bakelite base, are made. A comprehensive assessment of the test results showed that in the round external grinding of nickel-based microporous coatings the most effective is an abrasive wheel of made of electrocorundum with a ceramic bond, and when grinding iron-based coating – abrasive wheel made of silicon carbide with a ceramic bond.
Keywords: plasma coatings, abrasive tool, bond, grinding wheels, cutting forces, tool wear out, surface roughness

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