This paper investigates the earing phenomenon in deep drawing of AA3105 aluminum alloy, experimentally and numerically. Earing defect is mainly attributed to the plastic anisotropy of sheet metal. In order to control such defect, predicting the evolution of ears in sheet metal forming analyses becomes indispensable. In this regard, the present study implements the advanced yield criterion BBC20...

Understanding sheet metal forming presses are important to reduce manufacturing costs. Thus, the best method of finding optimum values processing is by studying effect parameters on behavior formability, friction, and die radius. In this work, deep drawing process a low-carbon steel cup was studied significance two investigated which friction coefficient radius die. The finite element program, ...

In this paper we consider the problem of drawing a planar graph using circular arcs as edges, given a one-to-one mapping between the vertices of the graph and a set of points in the plane. If for every edge we have only two possible circular arcs, then a simple reduction to 2SAT yields an O(n) algorithm to find out if a drawing with no crossings can be realized, where n is the number of vertice...

Rapid tooling is a methodology which aims to integrate additive manufacturing into the production of tools be used in casting, forming or machining processes. In forming, rapid applied metallic plastic that guarantee good performance small- and medium-sized batch production. However, most punches tested date have dimensions measured millimeters are therefore unsuitable for typical real-world in...

The demands for properties of deep-drawing materials are continuously growing, while new processing technologies and testing procedures to assess the deep-drawing properties are looked for. The formability of materials is influenced by all factors participating in the forming process, namely the sheet material, the product type, the tool and the production technology of a pressing. Indicative i...