Deep drawing is a sheet metal forming process in which a sheet metal blank is radially drawn. Deep drawing of paper is the process in which a paper blank is placed over a female. The deep drawing process involves a great deal of sliding of the sheet material along the tools. Specifically, if the depth of the item created is equal to or greater than its radius, then the. Deepdrawing operations are performed to produce a light weight, high strength, low density, and corrosion resistible product. 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. It is a language of communication between architects and engineers, usually to convey information about the object. This example problem illustrates the use of multiple steps to model a complicated manufacturing procedure.
Talat lecture 3704 deep drawing 15 pages, 16 figures advanced level prepared by k. Pdf design and analysis of deep drawing process on angular. Analysis of an axisymmetric deep drawn part forming using. Learn how and when to remove this template message. The drawing force is limited by the stress which the workpiece material can support at the point where the punch curvature ceases. We aim to provide a vast range of textbooks, rare and collectible books at a great price. This newly updated edition focuses on the drawing skills and information that are vital to a successful career in drafting. If you attempt to see in the way prescribed by any mechanical system of drawing, old or new, you will lose the understanding of the fundamental impulse. Special considerations for deep drawing of aluminium sheet metal. Mech 211, mechanical engineering drawing welcome to. These processes include hydroforming, hydromechanical deep drawing, aquadrawing, hydraulic deep drawing, the guerin process and the marform process.
Engineering drawing, also called technical drawing and engineering graphics, is the. Technical drawing is concerned mainly with using lines, circles, arcs etc. Here you can download engineering drawing book by n. However, it is very important that the drawing produced to be accurate and clear. However, the method requires high fluid pressure and punch loads. Cook basic engineering drawing pitman publishing ltd. These requirements will increase tendency of wrinkling and other failure defects in the product.
Oct 26, 2012 nowadays, deep drawing is one of the most important processes for sheet metal forming, once it allows high rate of production with good quality and low cost per part. Hydromechanical deep drawing with uniform pressure on the. Hydromechanical deep drawing, geerts deep drawing and re. Hydromechanical deepdrawing of fuel tanks 2000010415 deepdrawing with hydraulic counter pressure presents numerous advantages compared to conventional deepdrawing. Blankingblanking is the process ofcutting the initial sheet coil stockinto round or shaped flatsrequired for deep drawing. He conducted deep drawing of irregular cups and used the slip line field slf theory to determine the optimum blank size. Some of re searchers represent the following equations to evaluate thin ring plate behavior during deep drawing process by taking into account work hardening and thickness changes and strains during deep drawing of cylindrical cups 4447. A cup deep drawing example from literature is used for the validation of the simulation methods available in lsdyna. Deep drawing draw ratio blank holder blank holder force tube hydroforming these keywords were added by machine and not by the authors. Through our work with acet we have helped give hundreds of young people in africa the vital chance to get an. The hydromechanical deepdrawing process has different performances during operation. The deep drawing of cylindrical cups has also been extensively studied see e.
The prediction of these type of defects, as well as formability, are. Influence of process parameters in deep drawing pdf. Deep drawing dd is one of the sheet metal forming processes widely used in automobile. Friction in deep drawing technische universiteit eindhoven. Pdf design and analysis of deep drawing process on. Deep drawing for a circular cup a initial stage and. A study on doe methods for hydromechanical deep drawing. Shallow drawing for drawing deeper cups it is necessary to make specific provisions to confine the metal in order to prevent excess wrinkling of the edges. Engineering drawing text book by nd bhatt pdf latest.
Data that has been imported, or calculated based upon imported. The information contained in a drawing must be used to build an accurate componentsystem. Deep drawing using a novel hydromechanical tooling. This book on machine drawing is written, following the principles of drawing, as recommended by bureau of indian standards bis, in their standards titled engineering drawing practice for schools and colleges. Triform deep draw sheet hydroforming press animation youtube. Data that has been imported, or calculated based upon imported informa on, are shown in responses with a gold background. Modelling of contact and friction in deep drawing processes. Simulation of aluminium sheet metal deep drawing at. A new type of passivepressurized hydromechanical deepdrawing phdd tooling with two pistons is designed and manufactured. The process parameters of the cylindrical cup deep drawing example are given in table 3.
Engineering drawing, most commonly referred to as engineering graphics, is the art of manipulation of designs of a variety of components, especially those related to engineering. Nowadays, deep drawing is one of the most important processes for sheet metal forming, once it allows high rate of production with good quality and low cost per part. In this operation, forming of a flat metal sheet into a hollow or concave shape like a cup, is performed by stretching the metal in some. Our approach combines optimization scheme, design rules and numerical tests using finite element analysis incorporated with a damage model.
It is also seen an increase in strain hardening index. Fall 20 mech 211, mechanical engineering drawing welcome to. In this exercise we analyze a manufacturing process which stamps a steel cup. To obtain the best deep drawing parameter in reducing wrinkle and tearing during deep draw process. There are mainly two methods of deep drawing analysis. Appendix 6 deep drawing of a cylindrical cup patran 322 exercise workbook a63 model description. Anwar 8 studied the hydroforming deep drawing process and claimed that complex shapes can be easily formed using the process. Theoretical and experimental analysis of deep drawing.
The deep drawing process, as one of the most applicable sheet metal forming process, is widely used in many industries. Within this, cylindrical cups is one of the most widely studied deep drawing process since it allows analysing the effect of different process parameters in phenomena such as. Jun 01, 20 deep drawing stationtypes blanking drawing piercing trimming 8. Numerous unconventional deep drawing techniques have recently been implemented that have helped increase the industrial uses of deep drawing. This is the only book on machine drawing, incorporating the latest standards published. Simulation of aluminium sheet metal deep drawing at elevated. Hydromechanical deep drawing is a capable process for producing complicated and taperedshaped stamping parts as well as parts which require excellent surface quality, i. Publishers pdf, also known as version of record includes final page, issue and. Hydromechanical deepdrawing is a capable process for producing complicated and taperedshaped stamping parts as well as parts which require excellent surface quality, i. If hd jun 06, 2014 animation hydromechanical deep drawing, geerts deepdrawing, the specialist in deep drawing metall. The ability of transferring complex features from the punch onto the blank surface with high deep drawing ratios is investigated. In a cabinet drawing, receding surfaces are drawn onehalf size. All that you need in the way of technique for drawing is bound up in the technique of seeing that is, of understanding, which after all is mainly dependent on feeling. Deep drawing is affected by many factors such as material properties, tool geometry, lubrication etc.
A new type of passivepressurized hydromechanical deep drawing phdd tooling with two pistons is designed and manufactured. To investigate the effects of draw depth and blank holder force in deep drawing process. Hydromechanical deep drawing technology was first developed in 1890. Detailed experimental and numerical analysis of a cylindrical. This process is experimental and the keywords may be updated as the learning algorithm improves. Click on the link below to download the book click here download free. In this study, the effects of material properties and initial sheet thickness on forming and thickness reduction of the part were examined by using hydromechanical deep drawing assisted by radial pressure. Coverage spans from basic to advanced aspects of engineering and industrial technology, providing readers with fundamental exposure to design and visualization for computer modeling, as well as the more traditional methods of technical drawing. Among the forming processes for producing conical parts, the most capable one is hydroforming deep drawing. Journal of engineering sciences, assiut university, faculty of engineering, vol. In sheet metal forming smf processes, such as deep drawing, friction plays an important role. Multistage deep drawing with ironing of alkilled aisi 1040. It primarily consists of sketching the actual component, for example, a machine, with its exact dimensions.
Tech 1styear subject engineering graphics or engineering. Al1050, sheet metal forming, multistage deep drawing. However, the real development began after the second world war. Quintus technologies deep draw hydroforming press qfm 0. Hydromechanical deep drawing of fuel tanks 2000010415 deep drawing with hydraulic counter pressure presents numerous advantages compared to conventional deep drawing. This thesis friction in deep dra wing considers some aspects of friction on the deep drawing process. A study on doe methods for hydromechanical deep drawing process parameters article pdf available in applied mechanics and materials 217219. Introduction deep drawing operation is frequently used in the. Download engineering drawing text book by nd bhatt pdf latest edition for b. Engineering drawing text book by nd bhatt pdf latest edition. Wagner, institut fur umformtechnik, universitat stuttgart objectives.
Limiting drawing ratioldr is the ratioofthe diameterofthe largestblankthat canbe successfully drawntothe diameterofthe punch. Deep drawing is a process for shaping flat sheets into cupshaped articles without fracture or excessive localized thinning. Our approach combines optimization scheme, design rules and numerical tests using finite element analysis incorporated with a. Drawing tools nageswara rao posinasetti 1 february 6, 2012 2 february 6, 2012 sheet metal operations drawing is the process of making cups, shells, and similar articles from metal blanks. Development of hydromechanical deep drawing sciencedirect. 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. Read, highlight, and take notes, across web, tablet, and phone. Teaching the most important fundamental laws governing deep drawing. The hydromechanical deep drawing process can replace some other metal forming processes, because this process can improve the quality of the product without losing productivity. Check out the new look and enjoy easier access to your favorite features. Under certain conditions, this sliding will cause friction between the tools and the material. Rule based dfm analysis for deep drawing wikipedia. Hydromechanical deep drawing of cups with stepped geometries.
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