揮発性潤滑油を用いたアルミニウム合金板の深絞り加工における速度効果 Speed effect on deep drawing of aluminum alloy sheet with use of volatile lubricants
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 10<sup>0</sup> mm/s to 10<sup>4</sup> 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.
軽金属 48(1), 25-29, 1998-01-30
The Japan Institute of Light Metals