ASPECTS OF THE ROUGHNESS PARTS OF NON-FERROUS METALS OBTAINED BY EXTRUSION DIRECTLY TO COLD
In the first part of the work are presented some sorts of parts in aluminium, lead and copper, obtained by direct, extrusion. In the second part of the work is presented by means of tables and diagrams the roughness of the surfaces of the parts in aluminium, lead and copper, obtained by direct extrusion with more sorts of active plates,with and without lubrication. It is also presented the roughness of the parts in aluminium in comparison with those in lead and copper.
Key words : roughness, direct extrusion, aluminium, lead, copper, non-ferrous metals.
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