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Assessment of Deep-Drawability and Stretchability by Bulge Test of Concentrically Grooved Metal Disks
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In order to obtain new parameters available for assessing deep-drawability and pure-stretchability of sheet metals, a bulge test employing concentrically grooved disks is investigated. Both the ...
Formability Assessment by Bulge Test Employing Grooved Disks (Investigation into the Optimum Geometry of the Groove)
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The optimum geometry of the groove is investigated in the bulge test employing concentrically grooved disks which was earlier proposed as a press-formability test by the authors. It is recommended ...
Compatibility Between Tool Materials and Workpiece in Sheet-Metal Ironing Process
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: To assess the tool-workpiece compatibility in metal forming, a friction test is carried out on a strip-ironing type tribometer, which can estimate quantitatively the effect of new surface ...
Effect of Galling on Metal Fracture in Cup Ironing Process
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The metal fracture mechanism in cup ironing process was investigated, taking into account the effect of the galling. Three types of metal cracking were observed, which are distinguishable from ...
Assessment of Deep-Drawability of Mild Steel Sheets in Consideration of r-Value Change During Processing
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the previous study, it was found that the plastic anisotropy of commercially pure aluminum sheets changed during the deep-drawing process, and that this change influenced markedly the ...
Effect of Thickness on the Pure Stretchability of Aluminum Sheets
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The effects of the thickness, lubricant, and temper of metals on pure stretchability of aluminum sheets have been studied. The pure stretchability of the sheet metals was markedly deteriorated ...
Some Considerations on the Formability Parameter in Sheet-Metal Forming
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The applicability of the relative load-carrying capacity as a formability parameter is examined for deep-drawing, combined-forming, and pure stretch-forming tests, using various kinds of sheet ...
Development of Anti-Weldability Test in Metal Forming by Means of Strip-Ironing Type Friction Testing Machine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: To develop an anti-weldability test in metal forming, a strip-ironing type friction testing machine was devised to measure simultaneously normal and frictional forces acting on the die during ...
The Frictional Mechanism on the Surface of Metal Being Plastically Deformed by Drawing
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: To examine welding phenomena in deformation process, two-dimensional drawing-type friction tests have been carried out, using mild steel as the work metal. On the holder-surface a boundary ...
Influences of Friction and Metal Properties on Pure Stretchability of Sheet Metals
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The influences of the frictional coefficient at the tool-work interface and of the metal properties, such as n-value or r-value, on the stretchability of sheet metals have been examined both ...