These processes include hydroforming, hydromechanical deep drawing, aquadrawing, hydraulic deep drawing, the guerin process and the marform process. Analysis of deep drawing of sheet metal using the marform process. Numerical simulation and analysis on the deep drawing of. Analysis of an axisymmetric deep drawn part forming using reduced forming steps jian cao, shunping li. Process a stepbystep movement from a beginning point to an ending point. For both types of process analysis, however, it is often useful. Sheet metal forming is a complex process involving geometric, material and. A 3d explicitfinite element analysis is used to investigate the. In this paper, a finite element fe model is developed for the 3d numerical simulation of deep drawing process parametric analysis by using abaqusexplicit fea program with the. In this analysis, various friction coefficients are used for the vatious. A combination between experimental and finite element analysis fea of deep drawing process was made by colgan and monaghan 4. The sheet of metal is formed into 3d product by deep drawing process. The results were confirmed with a dedicated deep drawing analyses software package. This process is experimental and the keywords may be updated as the learning algorithm improves.
Forcedisplacement curve during deep drawing during the deep drawing process, the drawing force increases from zero up to a maximum value and then falls down again to zero, see figure 3704. Deep drawing, springback, finite element analysis, aa5754o. The process was simulated by finite element analysis using a commercial implicit fem package abaqusstandard to establish the base for our following analysis. Of deep drawing process the article deals with the analysis of formability of deep drawing dc06 steel sheets. Words in italic shall be typed in the command line. Recent experiments at the institute ifu indicated that the buckling test using modified specimens can enhance accuracy for the predication of wrinkling. The aim is to study analysis of optimization of blank holding force. The base is first formed in a manner similar to the stretch forming process and then the actual drawing process follows. The aim of the investigations is to verify possibilities of formability of sheet metal with thickness of 0. Analysis of elliptical cup drawing process of stainless sheet. The blank draw ability has been related both theoretically and experimentally with the initial diameter of the blank and deep drawing parameters. Start a data analysis session and load a quantitation or kinetics experiment. Experimental analysis can be useful in analyzing the process to determine the process parameters that produce a defect free product, and the analyticalnumerical modeling can be used to model and analyze the process through all stages of deformation. Analysis of elliptical cup drawing process of stainless.
In general, the following rule applies in forming process analysis. Drawing is sheet metal forming operation used to make cup shaped, box shaped, and complex curved and concave cup. Using this technique, higher limiting drawing ratios can be obtained compared with the conventional deep drawing process. The process is considered deep drawing when the depth of the drawn part exceeds its diameter. New approach for wrinkle prediction in deep drawing process.
Deep drawing deep drawing is one of the most widely used processes in sheet metal forming. This paper reports on the initial stages of a combined experimental and finite element analysis fea of a deep drawing process. Numerous unconventional deep drawing techniques have recently been implemented that have helped increase the industrial uses of deep drawing. It involves the cupping stage, partially drawn frustum cup, asymmetric cup drawing stage and the formation of the completed asymmetric cup.
Pdf in the deep drawing process, the blankholding force bhf is an. There are mainly two methods of deep drawing analysis. Deep drawing is a sheet metal forming process that involves complex material flow and force distributions. Friction in deep drawing pure eindhoven university. Analysis of intensified reverse deep drawing process toshko marinov kovachev. Pdf evaluation of drawing force and thickness distribution in the. Analysis of optimization of blank holding force in deep. Analysis of optimization of blank holding force in deep drawing by. The comprehensive discussions on material properties, friction and heat generation are provided to help to understand the. Investigation of forming speed and friction on drawability. Analysis of elliptical cup drawing process of stainless sheet metal yuungming huang, shiaocheng lu department of mechanical and computeraided engineering, st. Deep drawing process is a sheet metal forming process where a punch. This paper deals with the deep drawing of metal cups using the marform process.
Author links open overlay panel vedat savas omer secgin. Analysis of original drawing process the existing forming process consists of 10 steps, that is, 7step, 2step and 1step drawing to. Experimental formability analysis of bondal sandwich sheet. Comparison of wall thickness distribution between experiment and fe. Jun 01, 20 deep drawing stationtypes blanking drawing piercing trimming 8. Rule based dfm analysis for deep drawing wikipedia. Theoretical and experimental analysis of deep drawing.
Pdf analysis of deep drawing process for hemispherical. Deep drawing is an important process used for producing cups from sheet metal in large quantities. A new friction model based on local contact conditions is presented. Analysis of original drawing process the existing forming process consists of 10 steps, that is, 7step, 2step and 1step drawing to form zone i, zone ii and zone iii, respectively. Publishers pdf, also known as version of record includes final page, issue.
In this paper a new method to predict the onset of the wrinkling will be introduced, and results of this test will be compared with real deep drawing parts. The data acquisition and data analysis software for octet systems is available in an optional 21 cfr. This article presents an analysis of intensified process for manufacturing rotational parts from thin shin sheet material by means of reverse hydromechanical deep drawing. Optimization of forming load and variables in deep drawing process for automotive cup using genetic algorithm kakandikar g. Apart from its use in many other sectors, it is applied in the automotive industry for the manufacturing of car body parts. Figure 2 explain the sequences of the forming stages during asymmetric cup drawing process. The objective of this research is to determine the most important. Jul, 2017 deep drawing with its applications, defects and advantages explained. Analysis of deep drawing of sheet metal using the marform. Optimization of forming load and variables in deep drawing. Deep drawing deep drawing deep drawing is defined as a. The analytical model of the process is presented initially, followed by the finite element simulations using abaqus software. The depth of the cup created should not exceed the diameter of the blank sheet dieter, 1988 and the thinning should be kept bellow 20% of the original thickness t. Hamdi d proceedings of the world congress on engineering 2015 vol ii wce 2015, july 1 3, 2015, london, u.
Deep drawing is a widely used cold sheet metal forming process to draw the sheet metal in forming dye of desirable crosssection using mechanical force of the punch. Finite element analysis of deep drawing and springback failure criteria two types of failures were followed through the modeling. American journal of mechanical engineering, 12, 2029. Prediction of the forming results, determination of the thickness distribution and the thinning of the sheet metal blank will decrease the production cost through saving material and production time. The objective of this research is to determine the most important factors influencing a drawing process, utilizing the help of a design of experiments and statistical analysis. Deep drawing deep drawing is defined as a tensilecompressive sheet forming process in which a plane blank is formed into a hollow part open on one side or an open hollow part is formed into another hollow part with a smaller crosssection. A blank holder, that surrounds the punch, applies pressure to the entire surface of the blank, except the area under the punch, holding the sheet metal work flat against.
The deep drawing process involves a great deal of sliding of the sheet material along the tools. Dfma stands for design for manufacture and assembly. The successful simulation of the deep drawing process is very much dependent on successful modeling of the deep drawing process for numerical analysis. Of deepdrawing process the article deals with the analysis of formability of deepdrawing dc06 steel sheets. Deep drawing for a circular cup a initial stage and. Pdf design and analysis of a deep drawing and inprocess. In order to prove the potential of this combined process, investigations were. Even the finite element package gives an approximation towards the solution. The deep drawing process is a forming process which occurs under a combination of tensile and compressive.
The presentation includes a comprehensive analysis of the analytical, numerical. This paper deals with the analysis of deep drawing of circular blanks into axisymmetric cylindrical cup using numerical modeling. Finite element simulation of single stage deep drawing. Pdf some aspects of blankholder force schemes in deep drawing. A copy of the deep drawing analysis is made and placed on a new tab.
It is thus a shape transformation process with material retention. Sheet forming process involves stretch forming and deep drawing in which. The mechanical parameters of the sheets have been determined in uniaxial tensile and bulge tests. Analytical drawing this tutorial shows how to make an analytical drawing using rhinoceros. Presented contribution deals with force parameters research drawing and blankholding in deepdrawing process of flat bottomed cylindrical cup.
Simulation of the drawing process for determining stress distribution in the drawn component for a particular displacement is explained in the presented work. The aim is to study analysis of optimization of blank holding force developed for cup drawing operation by using. Specifically, if the depth of the item created is equal to or greater than its radius, then the metal forming process can be called deep drawing. Detailed experimental and numerical analysis of a cylindrical. Deep drawing is a process for shaping flat sheets into cupshaped articles without fracture or excessive localized thinning. The manufacturing of deep, cuplike products from thin sheet metal is known as deep drawing. In the presented work, the single stage deep drawing process of thin walled, mild steel, conical back plate of radial impeller of blowers is approached by means of a finite element analysis. At a certain point for many businesses, the prospect of a merger or acquisition can come up. Failure of sheet metal parts during deep drawing processes. To validate the present model a comparison between the values.
Hani aziz ameen ansys deep drawing process 1 ansys analysis of deep drawing process asst. Blankingblanking is the process ofcutting the initial sheet coil stockinto round or shaped flatsrequired for deep drawing. Talat 3704 6 stress zones during deep drawing during the drawing process the cup can be divided into four characteristic zones, see figure 3704. Create a box measuring 10x10x10 units and two cones with radius 9, height 10 placed according to the drawing above. The design and control of a deep drawing process depends not only on the workpiece material, but also on the condition at the toolworkpiece interface, the mechanics of plastic deformation and the equipment used. All process analyses usually follow a chronological sequence, especially a directive analysis, in which order is important to the desired outcome. The common parts made by deep drawing process are beverage cans, ammunition shells, sinks, coking ports and automobile body parts. Jul 22, 2011 this paper deals with the deep drawing of metal cups using the marform process. Rightclick the original analysis tab and select copy rightclick again and select paste. The objective of this research is to determine the most important factors influencing. Researchers manual annotation to identify signs using transcription of childs narrative generated during drawing process.
As is wellestablished from simple deepdrawing mechanics. A comparison has been made between reverse hydromechanical deep drawing and available. Numerical simulation and analysis on the deep drawing of lpg bottles. Click the select process and material bu on to open the selec on dialog. Process analysis and design in micro deep drawing utilizing a. These aspects include the manufacturability of the product, the resulting product appearance, wear and. Under certain conditions, this sliding will cause friction between the tools and the material. Pdf design and analysis of deep drawing process on. Step 2 of semiotic analysis on mckenzies prompted drawing with a focus on three aspects of the drawing. Some aspects of blankholder force schemes in deep drawing process. Sheet forming process an overview sciencedirect topics. Analysis of an axisymmetric deep drawn part forming using. Deep drawing process, one of sheet metal forming methods, is very useful in industrial field because of its efficiency. Deep drawing is a class of sheet metal forming process used for manufacturing of cups.