Open AccessMedia-assisted machining processes
Author(s) -
Wit Grzesik
Publication year - 2018
Publication title -
mechanik
Language(s) - English
Resource type - Journals
ISSN - 0025-6552
DOI - 10.17814/mechanik.2018.12.186
Subject(s) - machining , lubrication , mechanical engineering , materials science , liquid nitrogen , chip formation , tool wear , process engineering , metallurgy , composite material , engineering , chemistry , organic chemistry
A special group of hybrid assisted processes termed media-assisted processes which various liquid and gaseous media supplied to the cutting zone is highlighted. Special attention is paid on such cooling techniques as high-pressure machining (HPC), high-pressure jet assisted machining (HPJAM), minimum quantity cooling/lubrication (MQC/MQL) and a group of cryogenically cooled machining including such cryogenic media as CO2 snow and liquid nitrogen (LN2). Some important effects resulting from the various cooling strategies are outlined and compared. In particular, quantitative effects concerning chip breaking, thermal and tribological behavior of the cutting process as well as burr reduction, surface quality and subsurface layer are presented. The optimization procedure concerning both energy consumption and machining costs in terms of material removal rate (MRR) is presented.