Study of the Formability of Laminated Lightweight Metallic Materials

Abstract

Abstract. The main objective of this work was to test the formability of laminated materials. Laminated materials are considered a good choice when parts with reduced weight are considered. Thus, a laminated material, aluminum -polypropylene -aluminum (Al-PP-Al), as sheet 1.2 mm and 1.4 mm thickness was used. Before processing the material by means of unconventional plastic deformation, its formability was determined by running the Nakajima test. After obtaining the forming limit curves, the material was machined by means of incremental forming.

New Advances and Future Possibilities in Forming Technology of Hybrid Metal–Polymer Composites Used in Aerospace Applications

“…By contrast, by excluding the composite core, two aluminium plate were simultaneously formed without defects. The effect of initial sheet thickness on the formability of laminated material Al/PP/Al (Hylite ® ), has been investigated by Girjob et al [276]. This material has excep tional properties, such as flexural stiffness and very low density.…”

“…The observed failure modes for the laminates are de lamination, metal tearing, and galling, as shown in Figure 20. The effect of initial sheet thickness on the formability of laminated materials, Al/PP/Al (Hylite ® ), has been investigated by Girjob et al [276]. This material has exceptional properties, such as flexural stiffness and very low density.…”

Study about Mechanical Properties of Materials Obtained by Thermoforming

“…[4] For metal parts, there are also other processes used to manufacture complex parts, in a flexible way, while reducing their weight, such as additive manufacturing [5] and incremental forming [6], but for a certain class of plastic parts, thermoforming represents a better choice. There is research in this regard related to the behavior of light materials and thermoformed materials [7][8][9].…”