To prolong the fatigue life of a product handled by machines such as refrigerators and agricultural machinery, parametric accelerated testing (ALT) is recommended systemized approach to detect design inadequacies reduce fatigue. It demands (1) an ALT strategy, (2) type, (3) ALTs with change, (4) estimate whether present completes BX lifetime. The utilization quantum-transported life-stress type...

The white layer formed during the hard-cutting process impacts surface quality and mechanical properties of a workpiece significantly. Obtaining accurate critical cutting speed for formation is beneficial to control parameter selection cutting. Accordingly, combining with finite element (FE) method, model was developed based on solid phase transformation free energy theory, in which thermal–mec...

In order to understand the surface and interface conditions of polycrystalline cubic boron nitride (PcBN) sliding against bearing steel in vacuum environments, effects different loads on tribological behaviors PcBN AISI 52100 were studied deeply a tribometer. Furthermore, wear tracks scars characterized by scanning electron microscopy energy dispersive X-ray spectroscopy. The results show that ...

Abstract This paper concerns the tool wear in hard turning of AISI 52100 hardened steel by means PCBN tools. The purposes this work are development a model and its implementation FEM-based procedure for predicting crater flank progression during machining operations studying influence on process terms geometry modifications stress variation tool. developed model, able to update worn as function...