Overlapping Oscillation on Blank Holder for Improving Friction during Deep Drawing
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摘要: 應用模擬的方法在薄帶摩擦試驗中于正壓力上疊加低頻振動,模擬薄板在疊加振動的壓邊圈下的摩擦狀態,系統地研究了振幅、頻率、正壓力、拉速、表面與摩擦力的關系.試驗表明,在一定的條件下,低頻振動疊加是可以改善薄板成形變形區的摩擦狀況,降低摩擦力的.Abstract: A low frequency oscillation is overlapped in strip drawing test, which simulates the friction. state of sheet between blank holder and die with oscillation. The influence of amplitude, frequency, drawing speed, normal pressure, surface topography on friction have been given through the test It shows, overlapping low frequency oscillation on blank holder in sheet metal forming is helpful under some conditions.
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Key words:
- friction /
- surface /
- oscillation /
- deep drawing
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