Analysis and Optimization of Sheet Metal Flanging and Hemming Processes PDF Download
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Author: Guohua Zhang
Publisher:
ISBN:
Category :
Languages : en
Pages : 372
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Book Description
Author: Guohua Zhang
Publisher:
ISBN:
Category :
Languages : en
Pages : 372
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Book Description
Author: Amrut Mulay
Publisher: CRC Press
ISBN: 1040027318
Category : Technology & Engineering
Languages : en
Pages : 371
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Book Description
Analysis and Optimization of Sheet Metal Forming Processes comprehensively covers sheet metal forming, from choosing materials, tools and the forming method to optimising the entire process through finite element analysis and computer-aided engineering. Beginning with an introduction to sheet metal forming, the book provides a guide to the various techniques used within the industry. It provides a discussion of sheet metal properties relevant to forming processes, such as ductility, formability, and strength, and analyses how materials should be selected with factors including material properties, cost, and availability. Forming processes including shearing, bending, deep drawing, and stamping are also discussed, along with tools such as dies, punches, and moulds. Simulation and modelling are key to optimising the sheet metal forming process, including finite element analysis and computer-aided engineering. Other topics included are quality control, design, industry applications, and future trends. The book will be of interest to students and professionals working in the field of sheet metal and metal forming, materials science, mechanical engineering, and metallurgy.
Author: Hsien-Chih Wu
Publisher:
ISBN:
Category :
Languages : en
Pages : 316
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Book Description
Quality and preciseness requirements for automobile parts are getting more severe year by year. One of the significant factors to determine a high quality automobile is their appearance. The outer panel surface quality includes the matching quality among press- formed parts and fitting quality which involves the dimensions of uniformity in clearance and level-mismatch between panels. A number of automotive interior and exterior panels are formed by press brake bending or flanging, then joined by hemming. Therefore, the way to get higher quality appearance is to improve press brake technologies. Traditionally the design process for bending, flanging and hemming tools are based on trial-and-error processes and on the skill of experienced die-makers. This approach results in high development cost and long lead-times. Computer simulations are good tools to predict and evaluate the tool and process design. The improvement of computer hardware and software has permitted "virtual" metal forming processes to be conducted on digital computers. Finite element method (FEM) is a numerical procedure for analyzing problems that are too complex to be solved by classical analysis methods. The main objectives of this study are to investigate the flat surface-straight edge, flat surface-contour edge and curved surface-straight edge flanging and hemming processes. Furthermore, The development of new tool design method for flanging and hemming is included. To achieve these goals, numerical models and finite element analysis were performed to compare with experimental data. Besides, industrial flanging and hemming case studies were conducted by commercial FEM package. Consequently, a set of part, process and die design rules and guidelines for bending, flanging and hemming were developed.
Author: Thaweepat Buranathiti
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Through the integration of these features, the current research establishes a framework for design under uncertainty in sheet metal forming. The robust design model takes into account producibility requirements through failure analysis and uncertainties from forming conditions and material properties. The approach was demonstrated through a demonstration example of a wheelhouse stamping process used in automobile industry. In addition, model validation approaches taking uncertainty into account are demonstrated in a simulation of a sample flanging process. Overall, this research presents the methodology and feasibility of implementing the framework for design and optimization under uncertainty, which can certainly be generalized for other industrial cases.
Author: Ganesh M. Kakandikar
Publisher: CRC Press
ISBN: 1351652184
Category : Technology & Engineering
Languages : en
Pages : 239
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Book Description
Automotive and aerospace components, utensils, and many other products are manufactured by a forming/drawing process on press machines of very thin sheet metal, 0.8 to 1.2 mm. It is imperative to study the effect of all involved parameters on output of this type of manufacturing process. This book offers the readers with application and suitability of various evolutionary, swarm, and bio-inspired optimization algorithms for sheet metal forming processes. Book initiates by presenting basics of metal forming, formability followed by discussion of process parameters in detail, prominent modes of failure, basics of optimization and various bioinspired approaches followed by optimization studies on various industrial components applying bioinspired optimization algorithms. Key Features: • Focus on description of basic investigation of metal forming, as well as evolutionary optimization • Presentation of innovative optimization methodologies to close the gap between those formulations and industrial problems, aimed at industrial professionals • Includes mathematical modeling of drawing/forming process • Discusses key performance parameters, such as Thinning, Fracture, and Wrinkling • Includes both numerical and experimental analysis
Author: Tomas Jansson
Publisher:
ISBN: 9789185297740
Category : Sheet-metal
Languages : en
Pages : 30
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Book Description
Author: R. H. Wagoner
Publisher: Cambridge University Press
ISBN: 9780521642675
Category : Mathematics
Languages : en
Pages : 396
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Book Description
This 2001 book describes the most important numerical techniques for simulating metal forming operations.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 386
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Book Description
Author: Dr B V S rao
Publisher: Archers & Elevators Publishing House
ISBN: 9386501759
Category : Antiques & Collectibles
Languages : en
Pages :
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Book Description
Author: Ganesh Kakandikar
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659159688
Category :
Languages : en
Pages : 112
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Book Description
Drawing/Forming/Stamping is a compression-tension forming process, which are widely used sheet metal working processes in the industries, to produce cup shaped components at a very high rate. In this process the blank is generally constrained over the draw punch into the die to give required shape of cavity. In drawing the sheet material is subject to a large plastic deformation combined with a complex flow of material. When a metal sheet is deep drawn, the development of wrinkling and a decrease in the limit drawing ratio should be simultaneously suppressed. Blank holder is applied to prevent the wrinkling in the flange & cup wall. Wrinkling is basically initiated by localized buckling due to compressive stresses in circumferential direction. Tensile stress in radial direction causes tearing. Friction coefficient is usually used as a main indicator of friction, which is dependent on material, contact surface and lubricant. Appropriate Punch nose radius & Die profile radius should be selected. The success of process depends upon various parameters and their interactions. It important to understand the influence of all parameters on process output and to optimize them."
