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Influence of different friction conditions on the process of cold backward extrusion of steel
Author(s) -
Plancak M.
Publication year - 1992
Publication title -
lubrication science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.632
H-Index - 36
eISSN - 1557-6833
pISSN - 0954-0075
DOI - 10.1002/ls.3010040406
Subject(s) - extrusion , lubricant , materials science , metallurgy , deformation (meteorology) , die (integrated circuit) , volume (thermodynamics) , lubrication , stress (linguistics) , process (computing) , composite material , thermodynamics , computer science , linguistics , philosophy , physics , nanotechnology , operating system
Backward extrusion of steel is a deformation process in which very high forces and tool pressures occur. Reduction of such high forces and tool pressures is possible by using an efficient lubricant. This paper describes an experimental investigation of the influence of different lubricants on the stress‐strain state within the workpiece volume as well as on the stressing of the die. Best results were obtained when a phosphate‐coated specimen was lubricated with MoS 2 .