Malignancies, which present as deep neck abscesses are uncommon and may result in a delayed diagnosis or potentially a misdiagnosis. The present study describes a patient who exhibited a deep neck abscess as the initial manifestation of carcinoma of unknown primary (CUP). The aim of the present study was to raise awareness of this unusual presentation of CUP and emphasize the importance of repe...

Flange wrinkling is often seen in deep-drawing process when the applied blankholding force too small. This paper investigates plastic of flange under a constant force. A series experiments AA1100-O blanks are conducted with different forces. The critical cup height and wave numbers for each case established. reduced-order model developed using energy method, which implemented to predict sheet b...

The deep-drawability of a sheet metal blank is strongly influenced by the tribological conditions prevailing in deep-drawing process. Therefore, new methods to influence tribology represent an important research topic. In this work, application process-integrated lubrication process investigated. Most promising geometries channels and outlet openings are first identified means numerical simulat...

Large strains, anisotropy of mechanical properties of materials and Coulomb friction in contact regions are some properties in the analysis of deep drawing process. In this research, the effects of different parameters such as anisotropy coefficient, work hardening exponent and friction coefficient on deep drawing process of drawing quality steel are studied. For this purpose, the finite elemen...

CNG vessels are used in many vehicles.  Mass production of CNG pressure vessels requires exact understanding of process effective parameters.  In this paper, the numerical analysis has been used to study the manufacturing parameters.  The entire manufacturing processes, including deep drawing, redrawing and ironing, of an aluminum liner sample of CNG pressure vessel (without spinning) have been...