Observation on the behavior of ultrasonic micro-hammer and its effects on the deep drawing process: Numerical simulation and experimental study

Ultrasonics ◽  
2021 ◽  
pp. 106566
Author(s):  
Ehsan Malekipour ◽  
Ebrahim Sharifi ◽  
Nafiseh Shahbazi Majd ◽  
Hossein Heidary
Keyword(s):  
Numerical Simulation ◽  
Experimental Study ◽  
Deep Drawing ◽  
Drawing Process ◽  
Deep Drawing Process

Numerical and Experimental Investigation of Deep Drawing of Sandwich Panels

2014 ◽  
Vol 611-612 ◽  
pp. 1627-1636 ◽  
Author(s):  
Sergey Tipalin ◽  
Michael A. Petrov ◽  
Boris Saprikin ◽  
Nikolay Kosatchyov ◽  
Nikolay Shpunkin ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Experimental Investigation ◽  
Deep Drawing ◽  
Mechanical Tests ◽  
Drawing Process ◽  
Deep Drawing Process ◽  
Test Part ◽  
Composite Fabrication ◽  
Process Characterization ◽  
Material Fracture

Commonly investigated problem on composite fabrication and forming for weight reduction in transportation and aerospace area is not completely cleared. The main difficulties on composites forming without building any defects caused new ways on process characterization due to the key parameters. In the paper two main problems were investigated, i.e. material fracture and material thinning during deep drawing. Through mechanical tests and numerical simulation the authors tried to couple the fracture with the technological boundary conditions of the deep drawing process and form a housing test part from a three-layer material.

Effect of resonant frequency variation on the ultrasonically assisted deep drawing process: numerical and experimental study

2019 ◽  
Vol 106 (5-6) ◽  
pp. 2243-2264
Author(s):  
Ehsan Malekipour ◽  
Hossein Heidary ◽  
Nafiseh Shahbazi Majd ◽  
Siamak Mazdak ◽  
Ebrahim Sharifi
Keyword(s):  
Experimental Study ◽  
Resonant Frequency ◽  
Deep Drawing ◽  
Frequency Variation ◽  
Drawing Process ◽  
Deep Drawing Process

scholarly journals Advanced Techniques used in Numerical Simulation for Deep-drawing Process

2019 ◽  
Vol 290 ◽  
pp. 03012
Author(s):  
Valentin Oleksik ◽  
Radu Breaz ◽  
Gabriel Racz ◽  
Paul Dan Brindasu ◽  
Octavian Bologa
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Deep Drawing ◽  
Metal Forming ◽  
Inverse Analysis ◽  
Direct Analysis ◽  
Simulation Software ◽  
Drawing Process ◽  
Mathematical Apparatus ◽  
Deep Drawing Process

The present paper analyse the main characteristics of the numerical simulation by finite element method of the deep-drawing processes. Also the authors’ highlights the mathematical apparatus and the calculus method used for numerical simulations of metal forming processes in many of the current simulation software. The authors present the capabilities of the inverse analysis, direct analysis, implicit analysis (for springback simulation) and the optimisation analysis applied to explicit formulations.

Experimental Study of Drawing Load Curves in Forming Conical Parts by Hydroforming and Conventional Deep Drawing Processes

2011 ◽  
Vol 291-294 ◽  
pp. 556-560 ◽  
Author(s):  
Salman Norouzi ◽  
Amir Reza Yaghoubi ◽  
Mohammad Bakhshi-Jooybari ◽  
Abdolhamid Gorji
Keyword(s):  
Experimental Study ◽  
Sheet Metal Forming ◽  
Deep Drawing ◽  
Metal Forming ◽  
Pure Copper ◽  
Experimental Program ◽  
Drawing Process ◽  
Deep Drawing Process ◽  
Load Variation ◽  
Hydroforming Process

Since conical parts have wide applications in the industry and forming these parts is one of the most complex and difficult fields in sheet metal forming processes, the study on different methods in forming these parts can be useful. Hydroforming and conventional multistage deep drawing are two deep drawing processes which have been used to form conical parts. Hydroforming deep drawing is one of the special deep drawing processes which have been introduced in order to overcome some inherent problems in the conventional deep drawing with rigid tools. In the present work, an experimental program has been carried out to compare the drawing load variation and maximum drawing load in forming pure copper conical-cylindrical cups with the thickness of 2.5 mm by hydroforming and conventional multistage deep drawing processes. The results of the study demonstrate that drawing load variation is more uniform in the forming of conical parts by hydroforming deep drawing process. The maximum drawing load for drawing copper blank occurs at a higher amount in hydroforming process.

Numerical Simulation and Experimental Research on Superplasticity of Ceramic/Ceramic Laminated Composite

2007 ◽  
Vol 551-552 ◽  
pp. 533-538
Author(s):  
Guo Feng Wang ◽  
D.Z. Wu ◽  
C.W. Wang ◽  
Wen Bo Han
Keyword(s):  
Numerical Simulation ◽  
Deep Drawing ◽  
Tape Casting ◽  
Laminated Composite ◽  
Drawing Process ◽  
Hot Press ◽  
Deep Drawing Process ◽  
Forming Temperature ◽  
Hot Press Sintering ◽  
Better Than

In order to investigate the superplasticity of ceramic/ceramic laminated composite under tensile stress, the superplastic deep-drawing process was simulated by FEM. The results shown that, the strain and stress conditions of laminated composite, made by ceramic with different superplastic formability, are better than that of monolithic ceramic. Consequently, the material may exhibit high superplasticity. To testify this, some experiments were carried out. Tape casting and hot-press sintering are used to fabricate Al2O3/3Y-TZP laminated composite. As-received material is deep-drawing at high temperature to research its superplasticity. The results shown that, when suitable strain rate and forming temperature were used, the as-received material has excellent superplasticity.

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