Abstract
To improve the lubricity of the volatile lubricants with low viscosity (1~4 cSt), the speed effect was investigated by using a high speed deep drawing testing machine. The punch speed ranged from 100 mm/s to 104 mm/s. Test materials are 0.6 mm thick aluminum alloy sheet (A5052P–O) and mild steel sheet (SPCC) . In case of lubrication with 6221F and 6280, the application of higher speed effect increased the limiting drawing ratio (L.D.R.) of A5052P–O from about 1.6 to 2.1 and also reduced the maximum punch load. However the speed effect in SPCC was smaller than that of A5052P–O.
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