The Residual Stress State Generated by Single Point Incremental Forming of Aluminum Metal Sheets
- 1 August 2013
- journal article
- Published by Trans Tech Publications, Ltd. in Applied Mechanics and Materials
- Vol. 371, 148-152
- https://doi.org/10.4028/www.scientific.net/amm.371.148
Abstract
Single point incremental forming (SPIF) is a process during which at any moment a very small part of the sample is actually being formed. This progressive highly localised deformation is performed by a simple tool, whose trajectory is numerical controlled by a CNC machine. Since no support for the metal sheet is used during forming, large levels of deformation occur, which in turn, induce highly non-uniform residual stresses that affect the accuracy of the processed parts. The aim of the present paper was to inspect, experimentally and by simulation, the state of the residual stresses induced in SPIFed double frustums of pyramids made by A1050. The hole drilling method was used for the experimental measurements and the LS-Dyna software for simulation.Keywords
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