A Review on Deep Drawing Process

2018 ◽  
Vol 6 (6) ◽  
pp. 146
Author(s):  
D. Swapna ◽  
Ch, Srinivasa Rao ◽  
S. Radhika
Keyword(s):  
Sheet Metal ◽  
Deep Drawing ◽  
Room Temperature ◽  
Elevated Temperatures ◽  
Thin Sheet ◽  
High Strength ◽  
Drawing Process ◽  
Deep Drawing Process ◽  
Analysis And Design ◽  
Thin Sheet Metal

Deep Drawing (DD) process is the one in which a punch forces a flat sheet metal blank into a die cavity.  DD can also be described as the process which involves conversion of flat thin sheet metal blanks into parts of desired shape. Little work is available in the applications of DD processes at elevated temperatures which is going to be a very important manufacturing application in the coming decades. Deep Drawing (DD) is one of the sheet metal forming processes widely used in automobile, aerospace, electronics and allied industries to produce the hollow parts. The improvement in the deep drawing manufacturing process with latest methodologies leads to developments in the automobile and other sheet metal industries. Still today, this process of analysis and design is an art than science. Presently, the conventional deep drawing (CDD) operation is carried out at room temperature in industries. Although the deep drawing process of high strength / low formability metals has an extensive industrial application area, deep drawing at room temperature has serious difficulties because of the large amount of deformations revealed and high flow stresses of the materials. The present paper gives an overview of deep drawing process, its classification along with advantages, limitations and applications.

A study of vibro-acoustic behaviour variation of thin sheet metal components manufactured through deep drawing process

2019 ◽  
Vol 153 ◽  
pp. 110-126
Author(s):  
Vamsi Krishna Balla ◽  
Laurens Coox ◽  
Elke Deckers ◽  
Francesco Greco ◽  
Bert Pluymers ◽  
...  
Keyword(s):  
Sheet Metal ◽  
Deep Drawing ◽  
Thin Sheet ◽  
Drawing Process ◽  
Deep Drawing Process ◽  
Acoustic Behaviour ◽  
Thin Sheet Metal

Thinning and spring back prediction of sheet metal in the deep drawing process

2014 ◽  
Vol 53 ◽  
pp. 797-808 ◽  
Author(s):  
H. Zein ◽  
M. El Sherbiny ◽  
M. Abd-Rabou ◽  
M. El shazly
Keyword(s):  
Sheet Metal ◽  
Deep Drawing ◽  
Drawing Process ◽  
Spring Back ◽  
Deep Drawing Process

The Prediction of Press Loads in Deep Drawing With Various Conditions of Lubrication at Elevated Temperatures

1973 ◽  
Vol 95 (3) ◽  
pp. 895-903 ◽  
Author(s):  
M. H. Pope ◽  
J. T. Berry
Keyword(s):  
Experimental Work ◽  
Work Hardening ◽  
Deep Drawing ◽  
Numerical Evaluation ◽  
Elevated Temperatures ◽  
Drawing Process ◽  
Deep Drawing Process ◽  
Punch Load ◽  
Die Profile ◽  
Logical Extension

The present work is introduced and is shown to be a logical extension of work by Chung and Swift, Ray and Berry, et al. The authors introduce the deep drawing process and analyze the stresses due to radial drawing (including friction), bending the sheet, unbending the sheet, and die profile friction. From these stresses, an expression for the total punch load is developed. The authors also describe the experimental work in which determinations are made of the work hardening exponents, the anisotropic coefficients, the friction coefficients, and the total punch load. The paper concludes by comparing the numerical evaluation of the maximum punch load with that determined from experiments.

Study of the Parameters of Deep Drawing Process Based on the Simulation of Dynaform

2012 ◽  
Vol 249-250 ◽  
pp. 51-58
Author(s):  
Qing Wen Qu ◽  
Tian Ke Sun ◽  
Shao Qing Wang ◽  
Hong Juan Yu ◽  
Fang Li
Keyword(s):  
Friction Coefficient ◽  
Sheet Metal ◽  
Deep Drawing ◽  
Drawing Process ◽  
Blank Holder Force ◽  
Blank Holder ◽  
Deep Drawing Process ◽  
Drawing Die ◽  
Drawing Speed

A simulation of deep drawing process on the sheet metal was done by using Dynaform, the influence of blank holder force, deep drawing speed and friction coefficient on the forming speed of sheet metal in the deep drawing process were got. The forming speed of sheet metal determines the quality of deep drawing, in the deep drawing process the blank holder force and the deep drawing speed are controllable parameters, the friction coefficient can be intervened and controlled, and it’s a manifestation of the interaction of all parameters, the main factors which influence the friction coefficient just have blank holder force, deep drawing speed and lubrication except the material. The conclusion of this study provides the basic data for the analysis of the lubrication of mould, the study of lubricant and the prediction of the service life of deep drawing die.

FEM Simulation of Anisotropic Parameters Influencing the Earing in Sheet Metal Deep Drawing Process

2011 ◽  
Vol 88-89 ◽  
pp. 638-641 ◽  
Author(s):  
Lei Chen
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Sheet Metal ◽  
Deep Drawing ◽  
Fem Simulation ◽  
Element Model ◽  
Drawing Process ◽  
Deep Drawing Process ◽  
Material Characteristics

Earing is often undesirable in the production of deep drawn containers because it results in a nonuniform cup height. A finite element model for earring analysis is developed considering only the flange area of the sheet. It was found that the draw-in depth of the flange increases with the increase of the r value, and it remains invariable when r value is larger than 2. With the increase of the r value, the max thickness decreases and the min thickness increases. If △r>0, four earings are formed. If △r =0, the material characteristics in all the planar directions are same. The flange uniformly flows into the die cavity, no earing is formed. If △r<0, four earings are formed. The earing distribution is dominated by r0, r45 and r90. Both r and △r have much effect on the earing distribution.

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