Development and Production of Artificial Test Swarf to Examine Wear Behavior of Running Engine Components—Geometrically Derived Designs

Subtractive manufacturing processes are usually accompanied by the occurrence of tiny flakes and swarf, which later on cause severe wear damage, especially in moving components such as rolling or sliding bearings, pistons, etc. However, up until now, detrimental effects have hardly been investigated. One reason is lack a definition typical design debris particle. Therefore, main goal project described this paper was to elaborate draft that defines standardized test particles. It had be evaluated whether particles could adequately reproduced they would reveal significant damage potential. Taking into account future mass fabrication, Micro Powder Injection Molding (MicroPIM) chosen production method. Five different 3D designs geometrically defined were developed. The maximum size each 1167 mm green state; however, all samples shrank during sintering. Specially tailored feedstocks containing 42CrMo4 steel powders used related molding, debinding sintering procedures All particle geometries mold inserts developed using commercial software routine for layout runner systems, gate locations ejector positions. potential based trials journal bearing shift valve rigs. Although only moderate degree ascertained it can expected artificial swarf will enable