Analysis of Wear on VC131 Tool Steel Cutting Tools During Turning Under Different Machining Parameters

• DOI: https://doi.org/10.22533/at.ed.13176526040511

• Palavras-chave: Turning; tool wear; cutting parameters; machining; VC131 tool steel; surface finish.

• Keywords: Turning; tool wear; cutting parameters; machining; VC131 tool steel; surface finish.

• Abstract:

  This study analyzes the main types of wear and failure in cutting tools during the turning process of VC131 tool steel, with a hardness between 56 and 62 HRC. The study investigates the influence of machining parameters, such as cutting speed, feed rate, and insert geometry, on tool performance and the surface quality of the machined part. Experimental tests were conducted on a Romi TORMAX 20 lathe, using different cutting conditions and insert types, without the application of coolant. The results demonstrated that the inappropriate choice of machining parameters causes phenomena such as flank wear, crater wear, chipping, thermal cracks, and the formation of a secondary edge, compromising the integrity of the tool and the finish of the workpiece. In addition, a direct influence of the parameters on chip formation, process vibration, noise generation, and temperature during machining was observed. It is concluded that the correct selection of cutting conditions and tool geometry is essential to increase insert life, reduce operating costs, and ensure better dimensional and surface quality in the turning process of hardened materials.