... the overall size/weight of certain automotive components without compromising strength or durability. Stainless steel is a popular material for such uses (i.e., bumpers and fuel tanks), since it possesses both high strength and ductility, and it is relatively light for its strength. However, with current...

... technique, because of its inherent mechanism, effectively reduces the thickness of cut (TOC) of the workpiece material through overlapping vibration cycles. For the ductile machining of hard and brittle materials, this TOC plays a critical role. However, the relationships between the nominal DOC, the TOC...

...K. Aslantas; İ. Ucun; K. Gök The study deals with the machinability properties of austempered ductile iron using cubic boron nitride cutting tools. To emphasize the role of the austempering process, ductile iron specimens were first austenitized in salt bath at 900 ° C for 60 min , after which...

.... 08 12 2005 14 03 2008 08 07 2008 aluminium blanking deep drawing design engineering dies (machine tools) ductility failure analysis finite element analysis forming processes fracture friction Monte Carlo methods punching reliability sheet metal processing...

... model. The competition between ductile and brittle modes of failure in the polymer phase (polycarbonate) is captured by implementing the Gearing and Anand failure model calibrated at different temperatures. The CNT phase is given a simple strain-to-failure criterion. The proposed machining model has...

... to pure magnesium, the mechanical properties including tensile strength and yield strength of the Mg ∕ Si C nanocomposites were improved significantly, while the good ductility of pure Mg was retained. The grain size of the pure magnesium was refined significantly when SiC nanoparticles were dispersed...

...M. B. Cai; X. P. Li; M. Rahman In nanoscale ductile mode cutting of the monocrystalline silicon wafer, micro-, or nanogrooves on the diamond cutting tool flank face are often observed, which is beyond the understanding based on conventional cutting processes because the silicon workpiece material...

...Sathyan Subbiah; Shreyes N. Melkote The contribution of material separation in cutting ductile metals to the constant force component, and, hence, to the size effect in specific cutting energy is explored in this paper. A force-decomposition-based framework is proposed to reconcile the varied...

... to the novelty of this concept, no knowledge exists with regard to how LAAG joints deform and fail during quasi-static loading. This paper describes an investigation that was carried out to characterize the strength, ductility, and failure modes of a LAAG joint adhering a machined, steel surface subject to axial...

... deformation force model is employed when the chip thickness is less than the minimum chip thickness. Orthogonal, microstructure-level finite element simulations are used to calibrate the parameters of the force models for the primary metallurgical phases, ferrite and pearlite, of multiphase ductile iron...

...John Patten; Wei Gao; Kudo Yasuto We have demonstrated the ability to perform a ductile material removal operation, via single-point diamond turning, on single-crystal silicon carbide (6H). To our knowledge, this is the first reported work on the ductile machining of single-crystal silicon carbide...

...L. Chuzhoy; R. E. DeVor, Professor,; S. G. Kapoor, Professor,; D. J. Bammann A microstructure-level model for simulation of machining of cast irons using the finite element method is presented. The model explicitly combines ferritic and pearlitic grains with graphite nodules to produce the ductile...

...Y. P. Chang; M. Hashimura; D. A. Dornfeld, Fellow ASME, The mechanical material removal (MRR) mechanisms in lapping were investigated, using concepts of two-body vs. three-body abrasion and ductile vs. brittle machining. The statistical nature of the depth of cut in the lapping process...

..., automatic mesh contact with friction capability, material ductile failure and temperature-mechanical coupling. Material ductile failure criteria were proposed to simulate drilling burr formation. Based on a series of stress contours and the progressive deformation of the workpiece edge obtained from...