engleski

Theoretical calculation of the lubrication-layer thickness during metal drawing

The calculation of the lubricant-layer thickness using a fluid-mechanics approach is shown for the case of the cold drawing of metals. Examples of the calculation for a solid lubricant layer and a different geometry of the die entering angle are shown. The calculation of the effect of inertial force with a high drawing speed on the lubricant-layer thickness is also presented.

lubrication ; Reynolds equation ; mathematical modelling ; Couett flowing ; lubricant inertia

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