Open AccessINVESTIGATION INTO TT TECHNOLOGICAL PROPERTIES OF COOLANTS WITH LIQUID CRYSTAL ADDITIVES / TEPIMO IR AUŠINIMO SKYSČIO SU SKYSTŲJŲ KRISTALŲ PRIEDAIS TECHNOLOGINIŲ SAVYBIŲ TYRIMAS
Author(s) -
Vaidas Strolia,
Vadim Mokšin,
Robertas Urbanavičius
Publication year - 2012
Publication title -
mokslas - lietuvos ateitis
Language(s) - English
Resource type - Journals
eISSN - 2029-2341
pISSN - 2029-2252
DOI - 10.3846/mla.2011.115
Subject(s) - surface roughness , coolant , materials science , liquid crystal , chemistry , nuclear chemistry , analytical chemistry (journal) , metallurgy , composite material , chromatography , mechanical engineering , engineering , optoelectronics
The paper presents the results of comparative research on the roughness and tool life of the machined surface when steel and cast iron work pieces were turned, reamed and tapped and the cutting zone was lubricated by various coolants (mineral oils, oil emulsions) with and without twisted nematic liquid crystals. The tested liquid crystals were taken from the same homologous series (fatty acid cholesterol esters) but had different molecular mass. It has been established that the most positive tribological effect of liquid crystalline additives is achieved when high-molecular liquid crystals are used in operations characterized by the largest tool-work piece interface area (reaming, threading).
Article in Lithuanian