Mechanical Properties of Hardened AISI 52100 Steel in Hard Machining Processes

Abstract

This paper provides an approach using tensile tests at elevated temperatures to estimate mechanical properties of the work material for both elastic and plastic deformations in a broad range of strain, strain rate, and temperature in machining. The proposed method has been applied to estimate mechanical properties of hardened AISI 52100 steel in hard machining. Tensile testing is shown capable of estimating the mechanical properties of both elastic and plastic regions with large strains at elevated temperatures. Flow stresses at high strain rates in machining can be obtained by extrapolating the data from tensile tests by using the velocity-modified temperature. Flow stress data from tensile and cutting tests is consistent with regard to the velocity-modified temperature. Temperature is the dominant factor of mechanical properties of this material, while the effect of strain rate is secondary. Cutting forces and chip geometry predicted by the 3D FEM simulation of hard turning using the material property data obtained from the developed method agree well with the experimental data.

Development of Graphical Solution to Determine Optimum Hollowness of Hollow Cylindrical Roller Bearing Using Elastic Finite Element Analysis

“…This contact interaction is studied in detail by analytically using Hertz theory in the present work. The induced von Mises stress in the cylinder/roller is less then the yield strength 1410.17 N/mm 2 of roller material AISI 52100 steel (Guo and Liu, 2002).…”

“…S. 9202, 2001;Harris & Kotzalas, 2007;Horng, Ju & Cha, 2000;Demirhan & Kanber, 2008;Kania, 2006). Taking modulus of elasticity E = 201330 N/mm 2 and Poission ratio v = 0.277 for the bearing material AISI 52100 steel (Guo & Liu, 2002). These five cylindrical roller bearings are selected in such a way that the size of roller should be in step of 5 mm approximately.…”

Effects of cutting edge geometry, workpiece hardness, feed rate and cutting speed on surface roughness and forces in finish turning of hardened AISI H13 steel

“…Figure 2 shows the types of edge preparations that are common for CBN cutting tools. According to recent studies, it is evident that effect of edge geometry on surface quality is significant [23][24][25][26][27][28].…”

“…Other researchers have investigated composition, temperatures and wear characteristics of CBN cutting tools [1,8,[20][21][22]28] and the effects of work material properties, tool geometry and cutting conditions on surface integrity of the finish-machined parts [23][24][25][26][27][28]. They reported challenges in identifying various process, equipment and tooling related factors affecting surface quality, tool life and productivity.…”

Force modelling in shallow cuts with large negative rake angle and large nose radius tools?application to hard turning

“…Regarding the material property of hardened 52100 bearing steel, several models were researched [18,19], but these models lead to certain contradictions. Poulachon et al [18] neglected the effect of strain rate for the constitutive relation, but Guo et al [19] considered strain rate as a dominant factor. The Johnson-Cook equation is used in this study to represent the workpiece material constitutive property and its constants (r 0 , B, n, c, m) are determined based on machining tests.…”