| Autor: |
GAVRISH, A. P., ROIK, T. A., VITSUK, Yu. Yu., DORFMAN, I. E. |
| Předmět: |
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| Zdroj: |
Bulletin of KNUTD; 2014, Vol. 78 Issue 4, p199-214, 16p |
| Abstrakt: |
The purpose of a work is the experimental researches of fine processes of precision machining development of friction parts' plane surfaces from new composite materials based on aluminium alloys wastes for technological complexes of printing machine building enterprises and also for machine systems national economy of Ukraine in light and food industries. Methodology. Fine processes of precision machining of friction parts' plane surfaces were carried out in C-15 machine. Discs' material for fine machining development was cast iron and copper. Material of abrasive powders for fine grinding were white electrocorund (23A), white chrome electrocorund with percentage of abrasive composition - chrome oxide from 0 to 2% (33A), titanium electrocorund with percentage of abrasive composition - titanium oxide from 0 to 2 % (37A) and monocorund (43A). Granulosity of abrasive powders for fine grinding is 1 - 7 µM. Composition of lubricating cooling liquid was mixture of kerosene + oleic acid with different percentage of components. Findings. It was demonstrated the technological factors of fine processes of precision machining development such as cutting parameters, discs' material for machining development, material and granulosity of abrasive powders for fine grinding and also composition of lubricating cooling liquid essentially influence for quality surface's parameters of researched parts. It was shown the best results were obtained at using cast iron discs for finishing precision machining development, at using grains of white chrome electrocorund with percentage of abrasive composition -- chrome oxide from 0 to 2% (33A) with granulosity 3 - 5 µM and at the same time at using mixture of kerosene (65 %) + oleic acid (35%) as lubricating cooling liquid. Originality. For the first time it was shown the main regularities of fine precision machining parts' plane surfaces from new composite materials based on aluminum alloys wastes which are agreed with fundamental regulations of super fine abrasive grinding in general theory. Practical value. It was developed the recommendations for choice of cutting parameters for fine processes of precision machining development of parts for different technological purposes that are manufactures from composite alloys based on aluminum alloys wastes and which ensure the requirements for necessary quality parameters of parts' work surfaces. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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