Testing of Air-Cooling Efficiency of the Underside of a Turning Tool Carbide Insert in EN-GJL 250 Cast Iron Turning Operations

Abstract

This article shows the results of research on the eff ectiveness of operation of an original tool air cooling system in cutting. A case of turning EN-GJL 250 cast iron with TH10 tungsten carbide cutting inserts without protective coatings was selected for testing. The paper gives constructional details of the tested tool cooling system and discusses the principle of its operation. The research carried out has shown that this way of cooling the cutting insert causes a signifi cant decrease in temperature in all sub-areas of the cutting zone. In addition, air cooling has been proven to signifi cantly reduce cutting tool wear and slightly improve the roughness of the machined surface. The results obtained showed that the proposed method of cooling can be successfully used in the treatment of grey cast iron.In the future, it may serve as a basis for the construction of a professional cooling system for industrial applications.

Selected Properties of the Surface Layer of C45 Steel Samples after Slide Burnishing

“…These roles are performed by cutting fluids mainly in machining and plastic working. In machining, air cooling is successfully used [58] as a cooling liquid. In the case of shot peening, the main task of machining fluids is to reduce friction in the contact zone between the balls and the machined surface [59].…”