Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : Deep Drawing

Effect of Blank Holder Force on Strains and Thickness Distribution in Deep Drawing Process

Ali Abbar Khleif; Karem Muhsin Younis; Ali Tuaimah

Engineering and Technology Journal, 2014, Volume 32, Issue 8, Pages 2009-2019

This work aims to study the effect of the blank holder force on strains and thickness distribution along cup wall of drawn part in deep drawing process. 2-D model of cylindrical cup of (40mm) outer diameter, and (0.5mm) thickness made from low carbon steel (1008–AISI), has been developed. A commercially available finite element package (ANSYS14.0) was used to perform the numerical simulation of deep drawing process. The experimental work carried out using digital image processing technique. Five values of blank holder force =5, 7.5, 10, 12, 15 KN) were adopted. The numerical results of this model were compared with experimental results and the results show that, the value of the thickness and hoop strain at cup rim decrease with increasing blank holder force, while radial strain increases with increasing blank holder force. The best thickness distribution over all zones in produced cup obtained when using blank holder force with value =10 KN).

A Computer Program for Calculating the Circular Product Dimensions During Deep Drawing Operations Steps

Ridha Alwan Ahmed

Engineering and Technology Journal, 2013, Volume 31, Issue 13, Pages 2580-2595

Deep drawing process is an important industrial processes where it has been
extensively used. It is a process for converting the blank metal to make cylindricalshape
in most of the cases. A research program for performing basic calculations
related to the product shape was utilized. Eighteen geometric shapes have been
selected for the production in this process. The program is include the general
equations for this controlling process for each form. When choosing one of the shapes
in the program, the dimensions of the desired product are selected. In other words, the
inputs to the program are the required dimensions of the product before reaching the
required deportation. In addition, diameter, height and other related dimension are
computed which were chosen for each stage throughout the operation. Visual Basic
language was used to implement this program because of its ability to deal with
graphical interface. The program also accounts for a large number of mathematical
equations. Computer program is aimed to help designers templates deep drawing
quickly through the implementation of the process, and this exceeds the designer
experience that is required to perform the require calculations.