Intermediate Stage Build of Sheet Metal in Progressive Die Design

2014 ◽  
Vol 687-691 ◽  
pp. 504-507
Author(s):  
Xiao Da Li ◽  
Xiang Hui Zhan
Keyword(s):  
Sheet Metal ◽  
Intermediate Stage ◽  
Die Design ◽  
Product Configuration ◽  
Metal Part ◽  
Progressive Die ◽  
Metal Parts ◽  
Sheet Metal Parts ◽  
Intermediate Configuration ◽  
Progressive Die Design

Intermediate stage build of Multi-station progressive die is to get intermediate configuration of every station and blank by unfolding product configuration reversely. It needs complicated hand computation and drawing to design intermediate stage with traditional method. In this paper, NX PDW module is used to finish the work. According to the shape of sheet metal, parts are simply classified into three types, and for different type of sheet metal part, different method to unfold the product configuration is discussed. The process of building intermediate stage with PDW is intuitive, timesaving, and also easy to modify.

Design of Progressive Die Sequence by Considering the Effect of Friction, Temperature and Contact Pressure

2018 ◽  
Vol 767 ◽  
pp. 232-239 ◽  
Author(s):  
Esmeray Üstünyagiz ◽  
Taylan Altan
Keyword(s):  
Plastic Deformation ◽  
Sheet Metal ◽  
Empirical Data ◽  
Die Design ◽  
Interface Temperature ◽  
Process Conditions ◽  
Design Activity ◽  
Progressive Die ◽  
Metal Parts ◽  
Sheet Metal Parts

Progressive and transfer dies are used for forming of sheet metal parts in large quantities. For a given part, the design of progressive die sequence involves the selection of the number of forming stages as well as the determination of the punch and die dimensions at each stage. This design activity is largely experience-based and requires prototyping involving several trial and error operations. In some cases, empirical data and the experience based design procedure can be combined with Finite Element Method (FEM) based analysis to reduce time and cost. Often, when using FEM in progressive die design, friction and its effect upon temperatures is not adequately considered. However, at each forming station the plastic deformation and the tribological conditions influence the material flow as well as the temperatures and pressures at the tool/workpiece interface. The performance of the lubricant and coolant, used in progressive die forming, is affected significantly by interface pressure and temperatures. Therefore, a progressive process and die design methodology should include the consideration of metal flow as well as temperatures and pressures. Heat transfer coefficient, friction, plastic deformation, forming speed at each forming stage, time for part transfer from one stage to the next, and the ability of the used lubricant to cool the dies, have considerable effect upon a successful stamping. This paper describes a method for designing a progressive die sequence for forming axisymmetric sheet metal parts. The methodology for process sequence design combines experience based empirical data obtained through previous designs, design rules and numerical simulations including plastic deformation and friction. The initial experience-based design was refined using FEM and the thinning of the material in each successive drawing stage was calculated. The thermo-mechanical model was obtained using a constant friction coefficient along the tool/workpiece contact zone. Finally, the tool/workpiece interface temperature and the normal pressures were estimated in order that the lubricant can be selected based on these process conditions. The design predictions, made by using empirical data and FEM, were compared with experimental data.

A New Computerized System for Piercing and Bending Progressive Die Design

2011 ◽  
Vol 110-116 ◽  
pp. 4823-4831 ◽  
Author(s):  
Mohammad Ali Farsi
Keyword(s):  
Sheet Metal ◽  
Die Design ◽  
Network Systems ◽  
Progressive Die ◽  
Progressive Dies ◽  
Cad Cam ◽  
Formed Part ◽  
Design And Manufacture ◽  
Computerized System ◽  
Progressive Die Design

A Progressive die is used to transform flat strips of sheet metal into a formed part. This transformation is performed progressively by a series of stations that cut and bend the material into a desired shape. The progressive dies reduce the time and cost of producing complex sheet metal components. The design and manufacture of these dies are difficult. CAD/CAM systems have been proved very useful tools for this task. In this paper, a new system for design of the piercing and bending progressive die is described. In this system, piercing and bending operation are separated and the sequencing of each type is done individually. In this system first sequence of the piercing stations are determined then bending operations are sequenced based on a classification and fuzzy algorithm. Also, neural network systems are used to determine final angle of bends and die parameters. The capability of the system is shown using a sheet metal component.

scholarly journals AUTOMATION OF SHEET METAL COMBINATION DIE DESIGN PROCESS

2021 ◽  
Vol 13 (2) ◽  
pp. 39-44
Author(s):  
Hussein M.A. Hussein ◽  
◽  
Hossam Salem ◽  
Walla Abdelzaher ◽  
Vishal Naranje ◽  
...  
Keyword(s):  
Sheet Metal ◽  
Computer Aided Design ◽  
Die Design ◽  
Second Phase ◽  
Seamless Integration ◽  
Metal Parts ◽  
Sheet Metal Parts ◽  
Computer Aided ◽  
Two Phases ◽  
Aided Design

This paper proposed a novel methodology for designing and manufacturing of sheet metal dies based on features of sheet parts. Also, combination is designed according to die cupping and punching features of sheet metal parts. The proposed approach is an attempt to make seamless integration of computer aided design with computer aided manufacturing. The features used in this study are taken from MusumiTM Catalogue as well as from various small and medium scale sheet metal industries. Work is divided into two phases. In the first phase, the relevant geometrical and topological data is extracted by reading STEP AP 203. In the second phase, a combine adjacency matrix and rule-based system is developed to recognize sheet metal features for die manufacturing. The system showed excellent performance for all types of features contained in the MusumiTM catalog and for different sheet metal industries. The proposed system for automated design of combination dies for sheet metal parts has been tested successfully for various types of industrial deep drawn parts. It reduces the die compoment design time from hours to minutes. selection of die components and drawings generated by the system were found to be reasonable and very similar to those actually used in the sheet metal industries for production of these typical components on combination dies.

Manufacturing-Oriented Multi-State Model for Aircraft Sheet Metal Parts

2006 ◽  
Vol 532-533 ◽  
pp. 933-936
Author(s):  
Jun Biao Wang ◽  
Chuang Liu ◽  
Xiao Ning Han ◽  
Bing Feng
Keyword(s):  
Sheet Metal ◽  
Intelligent Manufacturing ◽  
State Model ◽  
Digital Manufacturing ◽  
Model Structure ◽  
Metal Part ◽  
State Information ◽  
Metal Parts ◽  
Sheet Metal Parts ◽  
State Feature

In order to define the intermediate workpiece information for the digital manufacturing of aircraft sheet metal parts, the Manufacturing-Oriented Multi-State Model for Sheet Metal Part (MOSS) is further studied. The model structure is constructed by the hierarchy of State, Feature, Element and Data (SFED). The hierarchy represents its content and relationship among its components in detail. The model application scheme shows that state information can be integrated with the systems of process planning and tool design, and the model provides a foundation for digital and intelligent manufacturing of aircraft sheet metal parts.

Digital Strip Layout Design of Multi-Station Progressive Die

2014 ◽  
Vol 687-691 ◽  
pp. 3433-3436
Author(s):  
Xiao Da Li ◽  
Xiang Hui Zhan
Keyword(s):  
Sheet Metal ◽  
Traditional Method ◽  
Layout Design ◽  
Die Design ◽  
Suitable Method ◽  
Progressive Die ◽  
Strip Layout ◽  
Building Layout ◽  
Assembly Structure ◽  
Progressive Die Design

Strip Layout design plays a key role in multi-station progressive die design, and the traditional method of designing layout is complicated, timewasting. To design layout of progressive die with PDW is efficient, easy to be modified. In this paper, the process of building layout is discussed. First of all, sheet metal should be pretreated to build immediate stage, and the suitable method can be chosen to unfold sheet metal according the configuration feature of the product. Secondly, it needs to build the assembly structure of progressive die, called initialization. Thirdly, with tools including Blank Generator, Blank Layout, Scrap Design, and Strip Layout to finish layout design. In the end, the paper takes a sheet metal for instance to finish the layout. The method of designing layout with PDW improves the traditional method’s deficiencies, and improves the efficiency greatly.

Robot-Forming - An Incremental Forming Process Using an Industrial Robot by Means of DELMIA Software Package

2013 ◽  
Vol 371 ◽  
pp. 416-420 ◽  
Author(s):  
Ionut Chera ◽  
Octavian Bologa ◽  
Sever Gabriel Racz ◽  
Radu Eugen Breaz
Keyword(s):  
Sheet Metal ◽  
Software Package ◽  
Incremental Forming ◽  
Industrial Robot ◽  
Metal Part ◽  
Forming Process ◽  
Program Code ◽  
Metal Parts ◽  
Sheet Metal Parts ◽  
Custom Made

The purpose of this research is to present an alternative method for manufacturing sheet metal parts using an asymmetric incremental forming process by means of an industrial robot. This method is based on designing, simulating and generating the toolpath for the tool attached to the robot using DELMIA software package. The proposed approach allows users to check for system collisions, robot joins limitations and singularity problems. After a comprehensive simulation of the movements of the robot is performed, the program code can be generated by means of a specific DELMIA function. The program can be used afterwards to control the robot during the experimental work. In order to demonstrate the capabilities of robot-forming, a truncated pyramid sheet metal part was manufactured using a custom made stand and with the help of a KUKA KR6 anthropomorphic robot.

scholarly journals Tool and Die Design for a Piercing Operation of Strip

2019 ◽  
pp. 26-34
Author(s):  
S. R. Dheringe ◽  
S. N. Shelke
Keyword(s):  
Sheet Metal ◽  
Manufacturing Process ◽  
Theoretical Calculations ◽  
Die Design ◽  
Ansys Software ◽  
Metal Parts ◽  
Sheet Metal Parts

The sheet-metal parts have already replaced many expensive cast, forged, and machined products in today’s practical and cost-conscious world. The factor is obviously the relative cheapness of these methods, or otherwise mass-produced parts, as well as greater control of their technical and aesthetic parameters. Press working is generally defined as a chip less manufacturing process by which various components are made from sheet metal. To produce a particular component in large quantity press tools are used. Metals having thickness less than 6mm is generally considered as strip. Metals having thickness greater than 6mm is considered as plate. In this work, According to organization need that the required strip part should have semi circular ends at both the ends. So in this work an attempt is made on to design the die for the strip to meet the actual operations requirement, materials, and calculations involved in it. The theoretical calculations for die are done and the parts are drawn with the help of software. The analysis of these parts is done on Ansys software and the results are taken.

Methods of Metal Parts Unfolding

2014 ◽  
Vol 989-994 ◽  
pp. 3310-3313
Author(s):  
Yang Li ◽  
Jie Gang Zhang ◽  
Ji Guang Li ◽  
Yu Chen Li
Keyword(s):  
Sheet Metal ◽  
Metal Structure ◽  
Body Structure ◽  
Sheet Metal Part ◽  
Metal Part ◽  
Metal Parts ◽  
Sheet Metal Parts

There are a variety of sheet metal parts in rocket body structure. The exact length calculation of sheet metal structure work is the key to ensure better quality of product. This paper describes two methods of sheet metal part unfolding which are method of formula and method of software. Two quick unfolding ways using AUTOCAD and EXCEL are described aim at method of formula. Summarize the notes of using Pro/E to unfold aim at method of software. span>Parts Unfolding

Experimental and Numerical Analysis of Blanking for Thin Sheet Metal Parts

2001 ◽  
Vol 4 (3-4) ◽  
pp. 319-333
Author(s):  
Vincent Lemiale ◽  
Philippe Picart ◽  
Sébastien Meunier
Keyword(s):  
Numerical Analysis ◽  
Sheet Metal ◽  
Thin Sheet ◽  
Metal Parts ◽  
Sheet Metal Parts ◽  
Thin Sheet Metal
Sign in / Sign up

Export Citation Format

Share Document