TRIBOLOGICAL PROPERTIES OF AL-ALLOY DESIGNED FOR DRAWING STAMPINGS IN AUTOMOTIVE INDUSTRY

Abstract

Strict legislative requirements for environmental protection and tendency to lower consumption of fossil fuels force the car producers to still find new possibilities in the car-body design. As one of such possibilities there is effort to apply materials with low specific weight. Among these belong also Al-alloys that are affordable, but in comparison to steels also difficult to be technologically processed. In paper is evaluated the influence of new coating type on the tribological properties of alloy EN AW 6016 that is used in the automotive industry for drawing stampings. Tribological properties are evaluated by means of 3D surface color maps, where is shown friction coefficient in dependence on sliding velocity and contact pressure. Own state of surface is observed and documented by images from the optical microscope and magnitudes of surface sheet roughness that are measured in parallel and perpendicular direction regarding the rolling direction.

Recommended articles

THE GENERATION OF ROBOT EFFECTOR TRAJECTORY AVOIDING OBSTACLES

MARTIN KOMAK, MARIAN KRALIK, VLADIMIR JERZ
Keywords: obstacle avoiding | trajectory planning | Industrial Robot | optimization | robot effector

APPLICATION OF WATER JET TECHNOLOGY FOR CONCRETE REPAIR

LENKA BODNAROVA, LIBOR SITEK, JOSEF FOLDYNA, TOMAS JAROLIM, RUDOLF HELA
Keywords: Water jet (WJ) | concrete | concrete repair | X-ray computer tomography (X-ray CT) | micro cracks | tensile strength

THE INFLUENCE OF CUTTING PARAMETERS ON SURFACE QUALITY AND NITROGEN CONSUMPTION DURING LASER CUTTING

VACLAV MUSIL, MAREK SADILEK, ROBERT CEP, SARKA MALOTOVA
Keywords: laser cutting | consumption of process medium | nozzle diameter | process fluid pressure

CONFIGURATION ON HYBRID PLATING TO IMPROVE INTERNAL FIXATION ON FEMUR BONE MODEL

NAFISAH ARINA HIDAYATI, MOCH. AGUS CHOIRON, SOFYAN ARIEF SETYABUDI
Keywords: Femur fracture | hybrid plating | configuration | stress | locking compression plate | internal fixation | bone screw