Machinability Improvement of Steels at High Cutting Speeds – Study of Tool/Work Material Interaction

Criteria for the Quality Assessment of Constitutive Equations Dedicated to Cutting Models

“…an average coefficient of friction measured through variable uncut chip thickness experiments [5,11,12] . an average coefficient of friction measured through variable uncut chip thickness experiments [5,11,12] .…”

Modeling and Simulation of a Chip Load Acting on a Single Milling Tool Insert

“…Some authors claim that the magnitude of the fracture strain does not affect simulation results [21]. Thus, taking into consideration that in the course of the cutting process the material was subjected both to temperature effect and influences arising from high deformation rate, the actual failure strain value may be 1.16 to 1.75 times larger than its static equivalent [22].…”

Determination of work material flow stress and friction for FEA of machining using orthogonal cutting tests

“…Hamann et al [6] investigated the effect of metallurgical treatments after deoxidation of free machining steels on the machinability by conducting orthogonal cutting tests, a SHPB test, and numerical simulations of the cutting process. They used a reversed method to identify parameters for JC constitutive model for two low carbon free cutting steels, namely S300 and S300 Si and two low-alloyed structural free machining steels, 42CD4 U and 42CD4 Ca.…”

“…Primary shear zone is assumed having a constant thickness, and according to experiments and data that found from literature, its value is approximated by one-half of the uncut chip thickness. Along with data published by Hamann et al [6] for 42CD4 U, and S300, orthogonal cutting experiments are undertaken for stainless steel 316L and 35NCD16 to verify the effectiveness of proposed methodology. However, they neither presented an adequate formulation for the friction at the chip-tool interface in their model, nor attempted to determine friction parameters.…”