Source Process Wire Material Lubricant Friction Value
Coefficient (µ) STD Factor (m) STD
Evans [4] Wire Draw 0.02% Ca Steel Lubr x #2009 0.08160 0.007711 0.12190 0.011180
Evans [4] Wire Draw 1024 Steel Lubr x #2009 0.06249 0.001169 0.09073 0.006775
Wistreich [5] Wire Draw Electrolytic Cu Sodium* 0.04232 0.004097 0.06166 0.003115
Avitzur [6] Hyd. Extr. Lead SAE30 0.07439 0.012770 0.18390 0.009497
Avitzur [6] Hyd. Extr. Lead SAE30+8%MoS2 0.04220 0.003491 0.11490 0.022300
Pugh [7] Hyd. Extr. Copper SAE30+MoS2 0.03858 0.003864 0.11270 0.011200
Pugh [7] Hyd. Extr. Armco iron SAE30+MoS2 0.05236 0.003925 0.13880 0.019580
 * Sodium Stearate in Methyl Alcohol

TABLE 1 - EVALUATION OF FRICTION VALUE