INVESTIGATIONS ON THE INFLUENCE OF ISOTROPY IMPROVING ALLOY ADDITIVES WHEN MACHINING 38MNSIVS6

Abstract

Resulfurized steels are commonly used in the industry due to its good machinability, which can be related to the formation of microstructural manganese sulfide (MnS) inclusions. On the downside, MnS inclusions cause a high steel anisotropy due to its elongated form. Within this paper, the effect of a MnS reduction and the influence of different countermeasures on the machinability is investigated. The addition of either selenium (Se) or bismuth (Bi) is combined with a reduction of the sulfur content with the aim to increase the isotropy and, consequently, the fatigue performance of the steel variants. Drilling investigations in longitudinal and transversal direction to the steel fiber are conducted and evaluated regarding wear development and cutting forces. The experiments showed that the addition of the two elements resulted in a good compensation of the MnS reduction regarding the machinability.

Recommended articles

INVESTIGATION OF PROCESSES IN HIGH-SPEED EQUIPMENT USING CNC CAPABILITIES

Ye. Aksonov, V. Kombarov, O. Fojtu, V. Sorokin, Ye. Kryzhyvets
Keywords: CNC; High-speed equipment; Parameters recording

DEVELOPMENT OF A METHOD TO DETERMINE CUTTING FORCES BASED ON PLANNING AND PROCESS DATA AS CONTRIBUTION FOR THE CREATION OF DIGITAL PROCESS TWINS

A. Hänel, E. Wenkler, T. Schnellhardt, C. Corinth, A. Brosius, A. Fay, A. Nestler
Keywords: Digital process twin; Machine data collection; Cutting forces; Process data; Milling

SURFACE INTEGRITY IN TURNING OF FE17CR2NI0.2C IRON BASED THERMALLY SPRAYED COATINGS WITH SPECIAL RESPECT TO THE INFLUENCE OF THE FEED

H. Liborius, A. Nestler, G. Paczkowski, A. Schubert, T. Grund , T. Lampke
Keywords: Surface integrity; Thermally sprayed coatings; Turning

CONTROL OF HYBRID ELECTRIC-HYDRAULIC DRIVE FOR VERTICAL FEED AXES OF MACHINE TOOLS

S. Fiala, A. Bubak, L. Novotny
Keywords: Research Center of Manufacturing Technology | 1Czech Technical University in Prague