COMPLEX APPROACH TO TRIBO-MODELLING IN DEEP DRAWING OF THIN SHEETS

Abstract

In the paper is presented the general approach to modelling of characteristic tribological areas in deep drawing of parts with complex geometry. For particular models are defined the input parameters, the testing procedure, specific criteria and possible outputs. The parameters that represent the particular models are systematized into three groups. The most complete are those indicators which are related to the elements of deformation distribution, namely to realized deformation fields, and show the connection with the limiting formability. In this way, influences of speed, pressure, geometry, tribo-pairs, lubricants, etc., can be expressed through classical and specific parameters and indicators of the limiting formability.