1,721,119 research outputs found
Incremental forming processes: current and potential applications
No full textSME Technical Paper no. MF03-11
A technique for FEM optimization under uncertainty of time-dependent process variables in sheet metal forming
No full text
Technological representation of forming limits for negative incremental forming of thin aluminium sheets
No full text
Robustness Evaluation And Tolerance Prediction For A Stamping Process With Springback Calculation By The FEM
No full textA technique for FEM optimization under reliability constraint of process variables in sheet metal forming
No full textA Simplified Methodology for Estimating the Variance of Material Properties, in FE Analysis under Uncertainty of Sheet and Tube Metal Forming Processes
No full textAutomatic tooling design for rotary draw bending of tubes
No full textCold rotary draw bending of tubes is a CNC metal forming process widely used in industry. When planning a new
process, trial and error is often required in order to calculate the proper overbending and to avoid wrinkling, excessive thinning and flattening. Process design is a critical, difficult, experience based activity, that requires the selection of several variables.
In this paper, a comprehensive, computer-based methodology, called Tube ProDes, is proposed for process design of the rotary draw bending of tubes. The approach can be described as follows. First, numerical calculations are carried out in order to compensate for springback, to evaluate the severity of the bend (i.e. the risk of the occurrence of defects), and to assess the sensitivity of the process to a change in the material properties. Then, the tooling setup is completely designed by fuzzy logic, using the tube material properties, the geometrical data of the bend and the variables previously calculated as input
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