A dissipative model for deep-drawing simulations: elastic springback prediction and incremental forming strategies

Author(s):  
Y. Denis ◽  
N. Hamila ◽  
M. Itskov ◽  
E. Guzman-Maldonado ◽  
F. Morestin
2020 ◽  
Vol 23 (4) ◽  
pp. 14-18
Author(s):  
Peter Mulidrán ◽  
Emil Spišák ◽  
Miroslav Tomáš ◽  
Vladimír Rohaľ ◽  
Feliks Stachowicz

2014 ◽  
Vol 622-623 ◽  
pp. 375-381
Author(s):  
Valentin Oleksik ◽  
Adrian Pascu ◽  
Ioan Bondrea ◽  
Eugen Avrigean ◽  
Liviu Rosca

The present paper proposes a comparative study in order to determine the springback in single point incremental forming process. Using the Ls-Dyna software the process was simulated for one piece in frustum of pyramid shape. In the end of the explicit dynamic analysis, it was run, using the same software, an implicit analysis to determine the springback. For this comparison study we selected four different shell formulations. The results obtained in this simulation were compared with those obtained experimentally for the same part. The experimental research was conducted on a robot and, on the opposite side of the machined surface, an Aramis measuring optical system was placed to allow the online determination of deformations, displacements and thinning of material. Also, using this system, the springback was determined at the end of forming process. The closest values were obtained when using fully integrated formulation with thickness-stretch with 11 integration points on material thickness.


2015 ◽  
Vol 67 (1) ◽  
pp. 57-60
Author(s):  
Melania Tera

Abstract Future technologies should aim at reducing the consumption of raw materials and energy, avoid technical losses, to save energy and mineral resources, to minimize the emissions and waste, eliminate any irrational use of all resources and also to minimize the environmental impact. The paper present from environmental point of view both a classic forming process such as deep-drawing and incremental forming process. The paper gives an overview of the main environmental aspects regarding the incremental forming process.


2015 ◽  
Vol 9 (5) ◽  
pp. 619-633 ◽  
Author(s):  
Hamad ul Hassan ◽  
Fawad Maqbool ◽  
Alper Güner ◽  
Alexander Hartmaier ◽  
Nooman Ben Khalifa ◽  
...  

2018 ◽  
Vol 178 ◽  
pp. 02004 ◽  
Author(s):  
Daniel Nasulea ◽  
Gheorghe Oancea

In incremental sheet forming processes, the expensive dedicated tool are avoided and replaced with a cheap and simple fixing device which support the sheet metal blanks. The current paper presents how a fixing device used for single point incremental forming device is designed, FEM simulated and manufactured. The fixing device can be used for parts with a cone frustum and pyramidal frustum made of DC05 deep drawing steel. The forces developed in the process and the device displacements were estimated using FEM simulation. The device components were manufactured using a CNC machines and the physical assembly is also presented in the paper.


2019 ◽  
Vol 957 ◽  
pp. 120-129
Author(s):  
Melania Tera ◽  
Cristina Maria Biris

Deep-drawing is an industrial forming process which allows the user to process large batches of sheet metals parts. One of the major drawbacks of this process is the complexity and the high cost of dies. In comparison incremental forming is a flexible process, allowing the user to obtain sheet metal parts without the need of using a die. The present paper aims to present a comparative study of the two forming processes by presenting the main advantages and drawbacks of each one. The comparative study, aimed on the industrial implementation of the incremental forming process requires a comparison of the two processes regarding the environmental impact. Thus, the results of the study will justify the selection of the incremental forming process in the case of small batches sheet metal parts in conditions of minimal impact on the environment.


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