To obtain the best deep drawing parameter in reducing wrinkle and tearing during deep draw process. The basics of mechanical drafting begin with understanding the concept of orthographic projection. Liang luo 1, zhengyi jiang 1, 3, dongbin wei 2, xiaogang wang 3, cunlong zhou 3, qingxue huang 3. Numerical simulation conducted by finite element method is one of the most powerful tools for analyzing metal forming processes.
With reduced dimensions, the hydraulic pressure development changes. A variety of metals can be deep drawn, including aluminum, stainless steel, aluminized steel, cold rolled steel, brass, bronze, cupro nickel, nickel, and titanium. The prediction of these type of defects, as well as formability, are. Tube drawing is very similar to bar drawing, except the. Microhydromechanical deep drawing of metal cups with hydraulic pressure effects. Expired lifetime application number inventor burk eugen current assignee the listed assignees may be. In this study, the effect of this relative tooling feature size on drawing characteristics and effects to improve the drawability, such as friction holding effect, hydrodynamic lubrication effect and compression effect by blank edge radial pressure, in micro hydromechanical deep drawing mhdd are investigated using plasticity theory and. The process parameters of the cylindrical cup deep drawing example are given in table 3. The first item needed is access to a mechanical drawing book.
Effect of various parameters on the wrinkling in deep. The prebulging hydromechanical deep drawing process was introduced on. Pdf analysis of the hydromechanical deep drawing of. Simulation of aluminium sheet metal deep drawing at elevated.
These requirements will increase tendency of wrinkling and other failure defects in the product. A grease trap is designed to prevent greasy substances from entering plumbing systems, septic tanks, and waste water treatment facilities where they are difficult to process and may create a number of environmental problems. Micro hydromechanical deep drawing of metal cups with hydraulic pressure effects liang luo 1, zhengyi jiang 1, 3, dongbin wei 2, xiaogang wang 3, cunlong zhou 3, qingxue huang 3 1. Comparative study of warm and hydromechanical deep drawing for. Industry requires many millions of drawings every year. With a few simple tools and knowledge of views, drawings can be understood and made. Hydromechanical definition of hydromechanical by the. Mechanical drive in the case of mechanical presses the blankholder is held by a knucklejoint system. A study on doe methods for hydromechanical deep drawing process parameters. For the optimization of the drawing process, described previously, less elements with the element type 2 are used to save calculation time 5. Ocz500sxs2 mechanical drawing power supply pdf manual download. Pdf finite element analysis of the hydromechanical deep. As a textbook and reference work in one, it provides an indepth study of the major metal forming technologies. The name or title of the drawing is the name by which in this case the detail drawing is commonly referred to by many parties involved.
Grease trap sizing guide a grease trap is designed to prevent greasy substances from entering plumbing systems, septic tanks, and waste water treatment facilities where they are difficult to process and may create a number of environmental problems. Limiting drawing ratioldr is the ratioofthe diameterofthe largestblankthat canbe successfully drawntothe diameterofthe punch. Deep drawing is a compressiontension forming process involving wide spectrum of operations and flow conditions. Us3208255a method and apparatus for hydraulic deep. An experimental and numerical study of micro deep drawing of sus304 circular cups article pdf available january 2015 with 90 reads how we measure reads. The study of the mechanics of fluids or the laws of equilibrium and motion concerning fluids. However, it is very important that the drawing produced to be accurate and clear. Simulation of aluminium sheet metal deep drawing at. Deep draw stamping materials ensuring performance trans. Browse through 85 potential providers in the deepdrawing industry on europages, a worldwide b2b sourcing platform. Among them, hydromechanical deep drawing hdd is, probably, the process which has gained the major interest in industries in the last few years. Journal of engineering sciences, assiut university, faculty of engineering, vol. Pdf warm hydromechanical deep drawing of aa 5754o and.
Among them, hydromechanical deep drawing hdd is, probably, the process which has gained the major. With the developments in the technology the design of deep drawing is an art than science still today. The drawing process is executed by a multilink drive. The influence of geometrical features of a pressure. Investigation of forming speed and friction on drawability. Hydromechanical deep drawing of fuel tanks 2000010415 deep drawing with hydraulic counter pressure presents numerous advantages compared to conventional deep drawing. Hydro mechanical deep drawing press isf series action. Microhydromechanical deep drawing mhdd, a typical microforming method, has been developed to take advantage of hydraulic force. In this variant of the of hydraulic deep drawing technique, the blank is preformed by an elevation of the pressure in the fluid medium in the opposite direction of the actual forming operation before the punch moves against the blank. Industryarena products, the research database for the. Based on the validated material data, a threedimensional lsdyna deep drawing simulation model of an example given in literature is set up.
Hydromechanical deep drawing of cups with stepped geometries. It has taken more than 100,000 working drawings to be able to manufacture the space shuttle. Only the last simulations are done with the fine net and the fully integrated shell. Hydromechanical deep drawing, geerts deep drawing and re. Effect of prebulging on wrinkling of curved surface part by. Deep drawing can achieve up to 43% reduction on a metal blank, and multiple successive deep draws can be used to achieve part size or shape requirements. The result of the process depends on the large number of parameters and their interdependence. Optimization of forming load and variables in deep drawing.
To investigate the effects of draw depth and blank holder force in deep drawing process. Determination of blank holder pressure in hydroforming deep drawing process r uday kumar1, p ravinder reddy2 and a v sitaramaraju3 corresponding author. Hydromechanical deep drawing is a capable process for producing complicated and taperedshaped stamping parts as well as parts which require excellent surface quality, i. On the scale dependence of micro hydromechanical deep drawing. See more ideas about cad drawing, drawings and mechanical design. Draw benches are available having capacities to provide pull force of upto 1 mn. The drawing speed attainable on a draw bench ranges from 5 mmin to 50 mmin. Mech 211, mechanical engineering drawing welcome to. Similar to conventional deepdraw forming, our press shapes metal sheets into a predefined geometry by using a fluid under high pressure. Transmatic produces precise, high quality deep drawn parts using a wide range of deep draw stamping materials. Deep drawing metal parts fabrication american aluminum.
These drawings communicate the details to a skilled craftswoman or man so the item can be correctly manufactured. Increasing the drawing height of conical square cups using antilock. The deepdrawing process is simply and widely used in the. It is a language of communication between architects and engineers, usually to convey information about the object. Deep drawing is affected by many factors such as material properties, tool geometry, lubrication etc. Isf150b50mp2 the deep drawing press offers new advanced hydroforming capabilities needed for complex part designs. In the hydromechanical deep drawing process, the fluid pressure is used for postponing the fracture occurrence in the blank, while the thtb technique allows to create a material property gradient through a suitable artificial aging treatment carried out prior to the forming process.
Finite element analysis of the hydromechanical deepdrawing process of tapered rectangular boxes. Deepdyve is the easiest way to get instant access to the academic journals you need. Deepdyve is the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. 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. Us3208255a method and apparatus for hydraulic deepdrawing. The information contained in a drawing must be used to build an accurate componentsystem. Deep drawing characteristics of square cups through. Warm forming hydromechanical deep drawing finite element. The deep drawing of cylindrical cups has also been extensively studied see e. Differences in strains obtained for the conventional and hydromechanical deep drawing process as well as process limitations are presented. In this paper a numerical study of hdd of a can box is presented. Yossifon s, tirosh j 1992 deep drawing with a fluid pressure assisted blank holder. Analysis of the hydromechanical deep drawing of cylindrical cups.
Request pdf hydromechanical deep drawing an experimental. A variety of metals can be deep drawn, including aluminum, stainless steel, aluminized steel, cold rolled steel. Various types of presses are used for the deep drawing of sheet metal, including doubleacting presses with mechanical or hydraulic drive. Pdf an experimental and numerical study of micro deep. Hydromechanical definition of hydromechanical by the free. In this study, the effect of this relative tooling feature size on drawing characteristics and effects to improve the drawability, such as friction holding effect, hydrodynamic lubrication effect and compression effect by blank. Microhydromechanical deep drawing of metal cups with. Special considerations for deep drawing of aluminium sheet metal. This chinese edition of the metal forming handbook presents the fundamentals of metal forming processes and press design. A cup deep drawing example from literature is used for the validation of the simulation methods available in lsdyna. The experimental investigation of effects of multiple parameters on. A typical steel storage pallet rack system the uprights are open thinwalled members. Industryarena products, the leading productresearchdatabase with more than 3,000 product categories. Wagner, institut fur umformtechnik, universitat stuttgart objectives.
Teaching the most important fundamental laws governing deep drawing. Pdf a study on doe methods for hydromechanical deep. In the hydromechanical deepdrawing process, the fluid pressure is used for postponing the fracture occurrence in the blank, while the thtb technique allows to create a material property gradient through a suitable artificial aging treatment carried out prior to the forming process. Pdf warm hydromechanical deep drawing whdd has increasingly been. In this process the pressurized fluid is used as a medium. We will work with you, as needed, to determine the best material for your parts based on application, performance and. Under certain conditions, this sliding will cause friction between the tools and the material.
Tooling feature size to minimum thickness becomes small in micro scale products and its ratio affects the deformation behavior in micro sheet forming significantly. This thesis friction in deep dra wing considers some aspects of friction on the deep drawing process. View and download ocz ocz500sxs2 mechanical drawing manual online. Effect of various parameters on the wrinkling in deep drawing. Oct 18, 2018 micro hydromechanical deep drawing mhdd, a typical microforming method, has been developed to take advantage of hydraulic force. The deep drawing process involves a great deal of sliding of the sheet material along the tools. Their section shape is a c like section stiffened by lips and, in some cases, by rear flanges and additional lips. Hydromechanical deep drawing request pdf researchgate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.
Detailed experimental and numerical analysis of a cylindrical. Jun 06, 2014 animation hydromechanical deep drawing, geerts deepdrawing, the specialist in deep drawing metall. Learning mechanical drawing is similar to learning another language. Us3286496a apparatus for hydraulic deepdrawing of sheet. Us3208255a us20731162a us3208255a us 3208255 a us3208255 a us 3208255a us 20731162 a us20731162 a us 20731162a us 3208255 a us3208255 a us 3208255a authority us united states prior art keywords pressure blank drawing workpiece punch prior art date 19610707 legal status the legal status is an assumption and is not a legal conclusion. Talat lecture 3704 deep drawing 15 pages, 16 figures advanced level prepared by k. Experimental deep drawing tooling assembled in the 300 ton servo press 2.
Applications car body roof and trim european aluminium. Hydromechanical deepdrawing is a capable process for producing complicated and taperedshaped stamping parts as well as parts which require excellent surface quality, i. Hydromechanical deepdrawing of fuel tanks 2000010415 deep drawing with hydraulic counter pressure presents numerous advantages compared to conventional deep drawing. Improving the hydromechanical deepdrawing process using. Hydromechanical deepdrawing of fuel tanks 2000010415 deepdrawing with hydraulic counter pressure presents numerous advantages compared to conventional deepdrawing. The drawing shows its name, wall bracket within the title block. Deepdrawing operations are performed to produce a light weight, high strength, low density, and corrosion resistible product. Iac specialise in the area of deep draw transferprogression pressing and rack anodising. Deep drawing is the forming of smooth sheet blanks into hollow parts. Written by qualified, practicallyoriented experts for practical implementation, supplemented by. Technical drawing is concerned mainly with using lines, circles, arcs etc.
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