Published: 30 June 2008

Use of liquid grystals for metal machining

V. Mokshin1
V. Vekteris2
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Abstract

The paper presents results of measurements of surface roughness of holes reamed in steel and cast iron workpieces, when mineral industrial oil with and without liquid crystals additives was used as coolant for reaming. Four types of twisted nematic liquid crystals (cholesterol esters) were tested: cholesterol valerate, cholesterol caproate, cholesterol stearate and cholesterol oleate. The concentration of the liquid crystals in oil was 0.5% by oil volume. The dependence of average roughness Ra of the reamed surface on coolant composition was established

About this article

Received
22 May 2008
Accepted
13 June 2008
Published
30 June 2008
Keywords
liquid crystals
coolant
mineral industrial oil
reaming