Comparison of some Final Part Geometrical Characteristics of Cylindrical Cups Manufactured by Deep-Drawing and Two-Point Incremental Sheet Forming

Babak Taleb Araghi; Markus Bambach; Gerhard Hirt

doi:10.4028/www.scientific.net/KEM.410-411.355

Paper Titles

Development of the Hot Gas Bulging Process for Aluminium Alloy Tube Using Resistance Heating
p.315

Investigations on Three-Roll Bending of Plain Tubular Components
p.325

Investigation of Die Corner Filling in Hydroforming of Cylindrical Stepped Tubes Using Finite Element Simulation and Experiment
p.335

Incremental Sheet Forming Analysed by Tensile Tests
p.347

Comparison of some Final Part Geometrical Characteristics of Cylindrical Cups Manufactured by Deep-Drawing and Two-Point Incremental Sheet Forming
p.355

Prediction of Path Deviation in Robot Based Incremental Sheet Metal Forming by Means of an Integrated Finite Element – Multi Body System Model
p.365

On a Simplified Model for the Tool and the Sheet Contact Conditions for the SPIF Process Simulation
p.373

Application of Neural Network Technique to Predict the Formability in Incremental Forming Process
p.381

Experimental Tests to Study Feasibility and Formability in Incremental Forming Process
p.391

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Comparison of some Final Part Geometrical Characteristics of Cylindrical Cups Manufactured by Deep-Drawing and Two-Point Incremental Sheet Forming

Abstract:

Asymmetric incremental sheet forming (AISF) is a new sheet metal forming process in which sheet metal parts are produced by CNC-controlled movements of a simple ball-headed forming tool. Despite its flexibility and successful application in many cases, AISF has not yet been established in an industrial context due to some still existing process limits such as severe thinning, which strongly depends on the inclination of the part surface, as well as a limited geometric accuracy due to springback. Furthermore, there is little knowledge available about the properties of parts produced by AISF, especially in comparison to deep-drawn parts. The aim of the present paper is to compare cylindrical cups manufactured by deep-drawing and AISF regarding the resulting strain and thickness distribution. For AISF, different forming strategies were applied. Comparisons of the wall thickness and surface strain distributions show similar results for the cup produced by deep-drawing and the best cup produced by AISF, but the surface strains and the sheet thinning in the parts formed by AISF were larger than in the deep-drawn part.