Abrasive Wear between Rough Surfaces in Deep Drawing
نویسنده
چکیده
A recent development in sheet metal forming industry is the application of tailored blanks: blanks prepared from separate pieces of sheet material, welded together prior to the forming process. The pieces of sheet material can have different properties, enabling weight reduction of components, corrosion resistance using cathodic protection or the possibility to create local weak spots, resulting in well defined deformation zones in the event of an accident (e.g. crash zones in automotive applications). However, a major draw back in the utilisation of these pre-welded or tailored blanks is that the weld between the pieces of sheet exhibits increased hardness and roughness, leading to possible abrasive wear of the sheet metal forming tool [1]. In this work a model is developed describing the abrasive wear of deep drawing dies caused by the application of tailored blanks.
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