MODERN APPROACHES TO THE USE OF GRINDING ALUMINUM ALLOY WASTE FOR THE PRODUCTION OF NEW ANTIFRICTION PARTS

The article focuses on the promising approaches to the wide use of the industrial colour metals grinding waste for the effective wear-resistant parts manufacture on example of the aluminum alloy grinding waste. The paper studies the effect of making technology of new antifriction composite materials based on aluminium alloy AK12MMgN grinding waste on the structure, physical mechanical and tribological properties at friction (sliding speed of 1.0 m/sec and a pressure up to 7.0 MPa on air). It was shown the features of structure formation in the composite material with Al–alloy matrix and their role in the friction behavior of new antifriction composite material under severe operating conditions. The full-scale tests of new composite parts based on silumin AK12MMgN grinding waste have shown an increase in wear-resistance of more than 2.24 times compared to the cast material. It was shown the principle possibility of successful use the valuable industrial colour metals grinding waste for manufacture of the effective antifriction parts for printing machines.