The effectiveness of the use of a water repellent emulsion when turning machining of carpolon

Abstract

The article presents the results of experimental studies of caprolon turning machining with the cutting fluid use. It is scientifically substantiated the use of an aqueous emulsion with the addition of a water repellent as a cutting fluid during caprolon turning machining. On this basis a new method for turning caprolon blanks was developed and patented. The fact of decrease in the water absorption capacity of caprolon in the case of its turning with the supply of an aqueous emulsion of potassium palmitate to the cutting zone has been established experimentally. At the same time, turning caprolon in the traditional way leads to the activation of the water absorption process. It has been experimentally proven that turning caprolon with the supply of an aqueous emulsion of potassium palmitate to the cutting zone provides a better processed surface of the part compared to the traditional turning method. This is evidenced by a more uniform deviation profile of the depressions and protrusions of the treated surface and the numerical values of the roughness parameters. The results of microstructural studies of caprolon shavings are presented. It has been established experimentally that turning machining of caprolon using an aqueous emulsion of potassium palmitate contributes to the formation of continuous flow chips whereas turning caprolon in the traditional way leads to the formation of segmented chips.