Development of Metal Sheets Hydraulic Deep Drawing Tooling

2013 ◽  
Vol 706-708 ◽  
pp. 1286-1289
Author(s):  
Xian Chang Mao ◽  
Si Li
Keyword(s):  
Deep Drawing ◽  
Hydraulic System ◽  
Hydraulic Control ◽  
Blank Holder ◽  
Single Action ◽  
Drawing Test ◽  
Metal Sheets ◽  
Deep Drawing Test ◽  
Hydraulic Control System ◽  
Oriented System

A simple and practical hydraulic deep drawing test tooling is developed to investigate metal sheets formability. It is composed of two parts including the forming die and hydraulic control system. Experiments with varied material and dimensional sheets of hydraulic deep drawing and mechanical deep drawing can be fulfilled by the tooling on a Single-Action Press without complicate external hydraulic system, blank holder system and oriented system for punch, respectively. The tooling is testified to be simply, facile and reliable, which can perfectly perform the sheets forming in hydraulic deep drawing, and the formability of sheets was improved effectively with hydraulic deep drawing.

Cazacu and Barlat Criterion Identification Using the Cylindrical Cup Deep Drawing Test and the Coupled Artificial Neural Networks – Genetic Algorithm Method

2012 ◽  
Vol 504-506 ◽  
pp. 637-642 ◽  
Author(s):  
Hamdi Aguir ◽  
J.L. Alves ◽  
M.C. Oliveira ◽  
L.F. Menezes ◽  
Hedi BelHadjSalah
Keyword(s):  
Genetic Algorithm ◽  
Finite Element ◽  
Deep Drawing ◽  
Inverse Analysis ◽  
Computational Time ◽  
Ann Model ◽  
Drawing Test ◽  
Artificial Neural ◽  
Deep Drawing Test ◽  
Cylindrical Cup

This paper deals with the identification of the anisotropic parameters using an inverse strategy. In the classical inverse methods, the inverse analysis is generally coupled with a finite element code, which leads to a long computational time. In this work an inverse analysis strategy coupled with an artificial neural network (ANN) model is proposed. This method has the advantage of being faster than the classical one. To test and validate the proposed approach an experimental cylindrical cup deep drawing test is used in order to identify the orthotropic material behaviour. The ANN model is trained by finite element simulations of this experimental test. To reduce the gap between the experimental responses and the numerical ones, the proposed method is coupled with an optimization procedure based on the genetic algorithm (GA) to identify the Cazacu and Barlat’2001 material parameters of a standard mild steel DC06.

Evaluation of stamping lubricants using the deep drawing test

2007 ◽  
Vol 47 (14) ◽  
pp. 2120-2132 ◽  
Author(s):  
Hyunok Kim ◽  
Ji Hyun Sung ◽  
Rajesh Sivakumar ◽  
Taylan Altan
Keyword(s):  
Deep Drawing ◽  
Drawing Test ◽  
Deep Drawing Test

The Kinematic and Dynamic Analysis of Hydraulic Control System Based on the Lagrangian Force Method

2018 ◽  
Vol 15 (05) ◽  
pp. 1850041
Author(s):  
Thi-Na Ta ◽  
Cao-Sang Tran ◽  
Yunn-Lin Hwang
Keyword(s):  
Control System ◽  
Dynamic Analysis ◽  
Hydraulic System ◽  
Lagrange Equation ◽  
Control Parameters ◽  
Hydraulic Control ◽  
Hydraulic Systems ◽  
Dynamical Parameters ◽  
Characteristic Effect ◽  
Hydraulic Control System

In this paper, the hydraulic control system design and dynamic analysis are considered in superior calculation efficiency based on Lagrangian method and fundamental laws for getting control algorithms to investigate about hydraulic system how to control hydraulic system and take hydraulic controller to the optimization. The systems built in dynamical parameters are associated hydraulic control system achieved with control parameters. And then, an interface is achieved. The relations between control parameters are obtained. The numerical tools are going to determine all kinematic parameters of bodies such as displacement, velocities, accelerations as well as reaction forces are responded. The AMESim and RecurDyn are used such Computer Aided Engineering (CAE) techniques to solve the numerical examples in this paper. Those examples will imply that the equation of motion based on Euler–Lagrange equation and characteristic effect of force is executable. Through results, we could achieve control improvement at different hydraulic systems.

Analysis of Construction Machinery Hydraulic Control System

2013 ◽  
Vol 401-403 ◽  
pp. 1590-1595 ◽  
Author(s):  
Li Zhang
Keyword(s):  
Power Control ◽  
Hydraulic System ◽  
Control Mode ◽  
Hydraulic Control ◽  
Hydraulic Power ◽  
Construction Machinery ◽  
Advantages And Disadvantages ◽  
Power And Control ◽  
And Control ◽  
Hydraulic Control System

This article analyses the use requirement of construction machinery, introduce the main features of typical construction machinery hydraulic system, derived power control modes of hydraulic system form hydraulic power form, compares the advantages and disadvantages of each power control mode, gives the optimization solutions, at last, sum up the full text of the construction machinery hydraulic power and control modes and prospect of the hydraulic system to precision control.

Design and Analysis of the Low-Speed Hydraulic Control System of 3.15MN Forging Press

2013 ◽  
Vol 690-693 ◽  
pp. 2210-2217
Author(s):  
Yi Bo Li ◽  
Ming Hui Huang ◽  
Qing Pan ◽  
Min Chen
Keyword(s):  
Control System ◽  
Hydraulic System ◽  
Hydraulic Press ◽  
System Structure ◽  
Hydraulic Control ◽  
Low Speed ◽  
Hydraulic Theory ◽  
Forging Press ◽  
The Mathematical Model ◽  
Hydraulic Control System

A low speed hydraulic control system applying to 3.15MN forging press isdesigned for isothermal forging processes. Based on the hydraulic theory andthe system structure, both the mathematical model and the simulation model ofthe hydraulic press are established with its features discussed. PID controlmethod is adopted and genetic algorithm is used to automatically tune theparameters of the controller to deal with nonlinearity and time-variant of thecontrolled plant. Co-simulation of the control system and hydraulic system isestablished to verify the feasibility of the design. It is proved by anisothermal forging of a turbine disc that the system has good performances andcan achieve an ultra speed control in the end.

Design and Analysis of Hydraulic Control System for Pipe Storage and Handling System

2011 ◽  
Vol 480-481 ◽  
pp. 1240-1245
Author(s):  
Yu Wang ◽  
Bao Lin Liu ◽  
Yuan Biao Hu
Keyword(s):  
Control System ◽  
Hydraulic System ◽  
Hydraulic Pressure ◽  
Hydraulic Control ◽  
Round Trip ◽  
Handling System ◽  
Piston Speed ◽  
Valve Operation ◽  
Hydraulic Control System ◽  
Pipe Joint

This paper research the hydraulic control system of pipe storage and handling system. The pipe storage and handling system (PSHS) is the key parts on rig to handle the drilling pipe and it can improve the efficiency during the drilling works. The hydraulic system of pipe storage and handling system have designed according to automatic round-trip operation in drilling engineering. The mathematical modeling of hydraulic components in PSHS have established and analyzed. The simulation model of hydraulic system of PSHS is also built and simulated to analysis the characteristics of reversal valve operation, Hydraulic pressure adjusting operation, piston speed control and state of accumulator based on the AMESim. The results prove that the operations of pipe storage and handle such as pipe storage, pipe clamping, pipe lifting, pipe transfer and pipe joint can be accomplished drive by hydraulic system. Meanwhile, AMESim have great views to research the geosciences equipment.

Improvement in Material Flow During Non-Isothermal Warm Deep Drawing of Non-Heat Treatable Aluminum Alloy Sheets

2016 ◽  
Author(s):  
Sudhy S. Panicker ◽  
Sushanta Kumar Panda
Keyword(s):  
Aluminum Alloy ◽  
Temperature Gradient ◽  
Deep Drawing ◽  
Material Flow ◽  
Element Model ◽  
Alloy Sheet ◽  
Effect Of Temperature ◽  
Drawing Test ◽  
Warm Deep Drawing ◽  
Deep Drawing Test

Automotive industries are very much interested in implementing warm forming technology for fabrication of light weight auto-body panels using aluminum alloys without localized thinning or splitting. A non-heat treatable and low formable AA5754-H22 aluminum alloy sheet was selected in the present work, and a laboratory scale warm deep drawing test set-up and process sequences were designed to improve material flow through independent heating of punch and dies. Significant enhancement in cup depth was observed when the temperature of punch and dies were set to 30°C and 200°C respectively. Thermo-mechanical finite element model of the non-isothermal deep drawing test was developed successfully to study the improvement in material flow incorporating Barlat-89 yield theory using temperature dependent anisotropy coefficients and Cowper-Symonds hardening model of AA5754-H22 material. It was found that a non-isothermal temperature gradient of approximately 93°C was established within the blank from the center to flange at the start of deformation, and subsequent evolution of temperature gradient helped in improving material flow into the die cavity. The effect of temperature gradient on forming behavior in terms of cup height, ear profile and thinning development across flange, cup wall, and blank center were predicted and validated with experimental results.

scholarly journals Deep Drawing Test of Vinyl Polymers and Copolymers

1971 ◽  
Vol 28 (319) ◽  
pp. 893-897,941
Author(s):  
Katsuhiro Maeda ◽  
Akira Kobayashi
Keyword(s):  
Deep Drawing ◽  
Vinyl Polymers ◽  
Drawing Test ◽  
Deep Drawing Test

Bracket Electro-Hydraulic Control System Based on PLC Hydraulic Research

2014 ◽  
Vol 1049-1050 ◽  
pp. 1042-1047
Author(s):  
Guo Wei ◽  
Li Ji
Keyword(s):  
Control System ◽  
System Control ◽  
Hydraulic Control ◽  
Hydraulic Support ◽  
Single Action ◽  
Position Detection ◽  
Basic Functions ◽  
Working Principle ◽  
Hydraulic Supports ◽  
Hydraulic Control System

Adopt a PLC controller as the core and combined hydraulic supports CAN bus technology to build electro-hydraulic control system, the composition and working principle of hydraulic support electro-hydraulic control system will be described; according to the control system control requirements to achieve a single frame single action moving, single rack sequential linkage, group exercise, shearer position detection and the overall program design, while the stent control system software and hardware design. Verification shows that the system is able to achieve its basic functions. Reference to automate the development of the growing coal mine hydraulic support electro-hydraulic control system.

Measurement of Coefficient of Friction in Hot Stamping by Hot Deep Drawing Test

2016 ◽  
Vol 716 ◽  
pp. 184-189
Author(s):  
Hironori Sasaki ◽  
Tomonori Mukai ◽  
Akira Yanagida
Keyword(s):  
Coefficient Of Friction ◽  
Deep Drawing ◽  
Hot Stamping ◽  
High Strength ◽  
Local Deformation ◽  
Wall Area ◽  
Scale Thickness ◽  
Drawing Test ◽  
The Coefficient Of Friction ◽  
Deep Drawing Test

Hot stamping process has been developed to produce the steel automobile parts with an ultra-high-strength of 1500 MPa. The effect of scale thickness on the formability in hot stamping was investigated by a hot deep drawing test in our previous research. The draw-in lengths of flange increased with decreasing the scale thickness. It is supposed that thin scale thickness resulted in low coefficient of friction at the flange area. The other reason is the temperature of wall zone would become low according to decreasing the scale thickness or increasing of the thermal transfer coefficient and it slightly inhibits local deformation at the wall area. It is difficult to separate these phenomena. To quantify the effect of scale thickness on the friction at the flange area during hot deep drawing, the coefficient of friction was directly measured. The coefficient of friction decreases with decreasing scale thickness.

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