كتاب Metal Forming Science And Practice
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 كتاب Metal Forming Science And Practice

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عدد المساهمات : 14273
التقييم : 22960
تاريخ التسجيل : 01/07/2009
العمر : 28
الدولة : مصر
العمل : مدير منتدى هندسة الإنتاج والتصميم الميكانيكى
الجامعة : المنوفية

مُساهمةموضوع: كتاب Metal Forming Science And Practice   الخميس 22 مارس 2012, 5:42 pm

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أحضرت لكم كتاب علم التشكيل

Metal Forming Science And Practice

ويتناول الموضوعات الأتية :

Recollections (graduate students)
John Schey and Value-Added Manufacturing (Brzustowski)
STRIKING CLARITY
AN ECONOMIC FACT
RICH IN IDEAS
JUST ONE OF MANY CONTRIBUTIONS
REFERENCES
Introduction - The Scheme of the Book (Lenard)
INTRODUCTION
THE TECHNICAL PRESENTATIONS
REFERENCES
Surface Finish and Friction in Cold Metal Rolling (Sutcliffe)
INTRODUCTION
UNLUBRICATED ROLLING
Without bulk deformation
With bulk deformation
Random rough surfaces
MIXED LUBRICATION
Modelling
Asperity deformation
Hydrodynamic equations
Method of solution
Friction modelling
Summary of models
Experimental methods
Theoretical results and comparison with experiments
Other experimental results
METAL FORMING SCIENCE AND PRACTICE
Foil and temper rolling
Thermal effects
MICRO-PLASTO-HYDRODYNAMIC LUBRICATION
(MPHL)
Micro-plasto-hydrodynamic lubrication in the mixed
lubrication regime
Micro-plasto-hydrodynamic lubrication of pits
Measurement of pit geometry
Modelling and comparison with
experiments
BOUNDARY LUBRICATION
TRANSFER LAYERS
CONCLUSIONS
REFERENCES
Direct Observation of Interface for Tribology in Metal Forming
(Azushima)
DIRECT OBSERVATION OF INTERFACE IN SHEET
DRAWING
Apparatus for direct observation
Direct observation of micro-PHL
Mechanism of micro-PHL
Speed dependence of coefficient of friction under
micro-PHL
DIRECT OBSERVATION OF INTERFACE IN FLAT
TOOL DRAWING
Direct observation of the interface
Pressure dependence of the coefficient of friction
Effect of surface topography of the workpiece
REFERENCES
An Examination of the Coefficient of Friction (Lenard)
INTRODUCTION
FUNDAMENTAL IDEAS
Mechanisms of friction
The adhesion hypothesis
The parameters affecting surface interactions
Determining the coefficient of friction
Experimental approach
Semi-empirical formulae - cold rolling
Inverse calculations
Application of a lubricant
The lubrication regimes
TABLE OF CONTENTS
The sensitivity of the lubricant's viscosity
to the pressure and the temperature
Entrainment of the lubricants
EXPERIMENTAL STUDIES
Equipment and procedure
THE COEFFICIENT OF FRICTION IN FLAT ROLLING
Dry rolling of aluminium alloy strips
Cold rolling of an aluminium alloy, using lubricants
with boundary additives
Cold rolling steel strips, using lubricants and emulsions
Neat oils
Neat oils and emulsions
Hot rolling aluminium alloys using emulsions
Hot rolling steel strips
THE DEPENDENCE OF THE COEFFICIENT OF
FRICTION ON PROCESS AND MATERIAL
PARAMETERS
REFERENCES
Studies on Micro Plasto Hydrodynamic Lubrication in Metal Forming
(Bay, Bech, Andreasen and Shimizu)
INTRODCUTION
EXPERIMENTAL INVESTIGATION
Equipment and basic procedures
Lubricant imprints on deformed strips
Influence of materials and process parameters on
lubricant escape
Influence of pocket geometry on lubricant escape
Hydrostatic pressure increase
Influence of pocket volume
Influence of angle to the edge
Influence of radius of curvature on the
edge
MATHEMATICAL MODEL OF MICRO PLASTO
HYDROSTATIC AND HYDRODYNAMIC
LUBRICATION
CONCLUSIONS
REFERENCES
Numerical Simulation of Sheet Metal Forming (Worswick)
INTRODUCTION TO STAMPING SIMULATION - A
DEEP DRAWN CUP
Finite element mesh
Boundary conditions and contact treatment
METAL FORMING SCIENCE AND PRACTICE
Forming predictions
EXPLICIT DYNAMIC VERSUS IMPLICIT
FORMULATIONS
Explicit dynamic method
Static implicit method
Choosing between implicit and explicit methods
MODELLING THE CONSTITUTIVE RESPONSE OF
SHEET METALS
Phenomenological yield loci
Formability predictions
Forming limit diagram approach
Damage-based constitutive models
SIMULATION OF STRETCH FLANGE FORMING
SIMULATION OF ALUMINUM ALLOY TAILOR
WELDED BLANKS
Simulation of small-scale TWBs
Simulation of large-scale TWBs
Damage prediction in the weld region
SIMULATION OF ELECTROMAGNETIC FORMING
EMF equations
Electromagnetic forming finite element model
EM field modelling
Structural modelling
MODELLING PRODUCT PERFORMANCE - DENT
RESISTANCE
Numerical simulation of panel forming and denting
Closure sheet-inner panel interactions
SUMMARY AND FUTURE
ACKNOWLEDGEMENTS
REFERENCES
Geometric and Mechanics Model of Sheet Forming (Duncan)
INTRODUCTION
PLANE STRESS DEFORMATION
FORCE PER UNIT WIDTH, OR "TENSION"
"Constant tension" assumption
BENDING AND UNBENDING MODELS
SUPPORTING SOFTWARE
CONCLUSIONS
ACKNOWLEDGEMENTS
Modelling and Optimization of Metal Forming Processes (Manninen,
Larkiola, Cser, Revuelta and Korhonen)
INTRODUCTION
TABLE OF CONTENTS
ON MODELLING AND OPTIMIZATION
ROLLING OF METALS
Prediction of the rolling force
Analysis of factors influencing the product quality
DEEP DRAWING OF STAINLESS STEEL
CONTINUOUS EXTRUSION
DRY TURNING OF Ca-TREATED STEEL
OPTIMIZING THE TUBE HYDROFORMING PROCESS
Principles of the hydroforming process
Hydroforming process simulation
Optimization of the parameters
Qualitative definition
Quantitative definition
Optimization setup
Optimizing and results
SUMMARY AND CONCLUSIONS
REFERENCES
The Mathematical Modelling of Hot Rolling of Steel (Yue)
OVERVIEW
THE CANMET- McGILL MATHEMATICAL MODEL
FOR MICROSTRUCTURAL EVOLUTION OF STEELS
DURING HOT ROLLING
Stages of hot rolling
Model inputs
Model outputs
Calculation steps
Transformation during cooling to coiling (on the
runout table)
Effective austenite surface area per unit volume
Ferrite grain size
Austenite transformation to ferrite, pearlite and
bainite
Precipitation in transformed austenite
Mechanical properties
DISCUSSION
REFERENCES
Identification of Rheological and Tribological Parameters (Szeliga and
Pietrzyk)
THE INVERSE METHOD
Definition of the inverse problem
Experiment
Direct problem
METAL FORMING SCIENCE AND PRACTICE
Goal function and optimization procedure
Two-step inverse algorithm
RESULTS
Identification of rheological and friction properties
Identification of internal variable model parameters
and friction properties
Identification of material properties from
axisymmetrical test performed using various
plastometric simulators
Identification of material properties from
axisymmetrical and plane strain compression test
DISCUSSION
CONCLUSIONS
ACKNOWLEDGEMENTS
REFERENCES
Oxide Behaviour in Hot Rolling (Krzyzanowski and Beynon)
FACTORS INFLUENCING FRICTION, HEAT
TRANSFER AND QUALITY OF THE PRODUCT IN
HOT ROLLING
OXIDE FAILURE DURING HOT TENSILE TESTING
Experimental
Modes of oxide scale failure in tension and
measurement of separation loads
MATHEMATICAL MODEL
Model of oxide scale failure
EFFECT OF CHANGING STEEL COMPOSITION
Comparison of oxide scale growth and morphology
Comparison of failure modes
ANALYSIS OF OXIDE SCALE FAILURE AT ENTRY INTO
THE ROLL GAP
Effecto f initial stock temperature
Effect of oxide scale thickness
Verification of the model prediction using stalled hot
rolling tests
OXIDE SCALE FAILURE IN THE ROLL GAP
ANALYSIS OF DESCALING EVENTS
Hydraulic descaling
Mechanical descaling
ACKNOWLEDGEMENTS
REFERENCES
TABLE OF CONTENTS
Friction, Lubrication and Surface Response in Wire Drawing
(Wright)
BASIC CONCEPTS
Frictional stress characterization
Determining friction mode by wire surface analysis
THE EFFECT OF TEMPERATURE
VELOCITY- TEMPERATURE INTERACTIONS
PROCESS DESIGN EFFECTS
Lubricant selection
Die material and die angle
Sequential drawing effects
THE DRAWING OF SHAPES
THE GENERATION OF FINES
REFERENCES
Modelling and Control of Temper Rolling and Skin Pass Rolling
(Wiklund and Sandberg)
INTRODUCTION
What do we mean by temper rolling and skin pass
rolling?
Why
How
MODELLING OF THE ROLL GAP
Failure of conventional cold rolling models
Fleck and Johnson
A hybrid model
FEM
Mechanical properties
Coining and smoothing of the surface
Improving the flatness
The FEM tool
Simulations with a simple constitutive
model
Simulations with an advanced
constitutive model
Making fast predicting models from FEM
simulations
MODELLING OF THE ROLL FORCE
FEM
Hybrid modelling
The neural network tool
Process data set
Modelling with process data set
METAL FORMING SCIENCE AND PRACTICE
Process data set
The old set-up model and a neural
network model
A physically based model, a neural
network model and a hybrid model
Classic cold rolling theory
Detection of fiat zones within the roll
gap
Process data set and a neural model
Hybrid model combining a classic
model and a neural network model
CONCLUSIONS FROM THE MODELLING EXERCISES
PROCESS CONTROL
Set-up before the rolling pass
Feed-back control during the rolling pass using the
mass flow method
Forward and backward tension
DEVELOPMENT TRENDS
Modelling and control
Temper rolling and tension levelling
ACKNOWLEDGEMENTS
REFERENCES
AUTHOR INDEX
SUBJECT INDEX

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عدد المساهمات : 14273
التقييم : 22960
تاريخ التسجيل : 01/07/2009
العمر : 28
الدولة : مصر
العمل : مدير منتدى هندسة الإنتاج والتصميم الميكانيكى
الجامعة : المنوفية

مُساهمةموضوع: رد: كتاب Metal Forming Science And Practice   الخميس 08 نوفمبر 2012, 9:14 pm

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