SHEETS WITH SURFACE COATING OF Zn/Mg/Al FOR ADHESIVE BONDING APPLICATION IN THE AUTOMOTIVE INDUSTRY - COMPARISON OF PRODUCERS

The paper deals with the evaluation of sheets with surface coating on the basis of Zn/Mg/Al and their application possibilities in the automotive industry. Evaluation is carried out by determination adhesive joints strength acc. to ISO 11339 for three sheet producers from many who supply sheets for car-body parts production. Utilization of new types of materials means also necessity to test individual bonded car-body parts utility properties, mainly at peel test under certain temperature conditions simultaneously in dependence on type of adhesives and lubricants which are used in the drawing technological process. Results give sheet processors information about properties of sheets with these surface coatings from individual producers, behavior of bonded joints strength properties together with failure mode as a criterion for propriety selection to apply new types of coating on the basis of Zn/Mg/Al.