Study on pressure distribution in cold rolling of aluminum sheets with different rolling textures

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The pressure distribution along the arc of contact in cold rolling of aluminum sheets was measured by the pressure pick-up pin method. The samples were hot and cold rolled from soaked cast slabs with growth twins and columnar and equiaxed crystals. The initial orientation and the rolling texture affected the specific pressure in cold rolling and the texture dependence of the rolling pressure was able to be evaluated. The pressure distribution pattern was analogous to the friction hill whether the slab consisted of growth twins, columnar crystals or equiaxed crystals. The rolling textures, {112} , {123} , {113} {236} and {135} , which were called high potential rolling textures, produced the large specific pressure along the contact arc. The rolling textures, {110} , {110} and {110} , which were called low potential rolling textures, produced the small specific pressure. Sheets with the mixture of the high and low potential rolling textures were rolled with the medium specific pressure.