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Tables of Contents for Computer Applications in Near Net-Shape Operations
Chapter/Section Title
Page #
Page Count
List of Abbreviations
xv
List of Authors
xvii
Introduction to near net-shape operations
1
6
S.K. Ong
A.Y.C. Nee
Introduction
1
1
Classification of near net-shape operations
2
3
Sheet metal forming
2
1
Massive (bulk) metal forming processes
3
1
Injection moulding
4
1
Machines for near net-shape operations
4
1
Near net-shape operations: past, present and future
5
2
Bibliography
5
2
CAD/CAM for sheet metal forming and related processes
7
88
Z.G. Li
N.F. Choong
K.H. See Toh
H.T. Loh
A.Y.C. Nee
Introduction and basic techniques
7
10
Feature modelling of stampings
7
6
Application of expert systems to stamping die design
13
4
Optimisation of blank layout
17
9
Mathematical description of blank layout
18
2
The polygon method
20
1
The height function method
21
5
Fine blanking
26
8
Characteristics of the fine blanking process
26
1
Application of the fine blanking process
27
1
CAD/CAM of fine blanking dies
27
7
Progressive stamping
34
15
Software architecture of the system
35
1
Strip layout
36
6
Construction design of progressive dies
42
7
An overview of a flat patterning and bending simulation system
49
15
Design input module
49
1
Flat pattern development module
50
1
Bending simulation module
50
1
System details
51
6
Implementation of bending simulation module
57
7
CNC punching and nibbling
64
12
Computer-based system for CNC nibbling
64
1
Punch libraries
65
1
Profile classification
66
1
Punch selection and optimisation
67
1
An approach to automatic tool selection
68
6
A case study
74
2
Die construction design
76
8
Design of die and punch
76
3
Layout of ejectors
79
5
NC programming of wire EDM
84
11
Process consideration for NC programming of wire EDM
84
1
Geometric computation
85
3
NC programming procedure for wire EDM
88
3
References
91
1
Bibliography
92
3
CAD/CAM for massive (bulk) metal forming
95
50
J.C. Xia
Introduction
95
2
Cold upsetting
97
19
Determination of operations and sequences
97
6
Calculation of process parameters
103
6
Design of dies cavities, general parts and combined dies
109
5
The BNC CAD system
114
2
Closed-die forging
116
29
Selection and calculation of bars
116
2
Determination of operations and sequences
118
8
Calculation of forging load and stress
126
5
Design of dies
131
9
Program flowchart and description
140
4
References
144
1
CAD/CAE/CAM for injection moulding
145
42
D.Q. Li
X.G. Ye
Introduction
145
3
Brief history of development
145
1
Technological characteristics
146
2
Graphic input and geometry construction of injection moulded products
148
3
Wire-frame modelling
148
1
Surface modelling
149
1
Solid modelling
150
1
CAD for construction design of plastic injection moulds
151
8
Program flowchart
151
1
Standard mould base design
152
3
Cavity and core design
155
1
Runner bar design
156
3
Flow simulation of plastic injection moulding
159
10
One-dimensional flow analysis
159
5
Two-dimensional flow analysis
164
1
Three-dimensional flow analysis
165
4
Cooling simulation of plastic injection moulding
169
7
One-dimensional cooling analysis
169
2
Two-dimensional cooling analysis
171
3
Three-dimensional cooling analysis
174
2
CAM for plastic injection moulds
176
8
Integrated CAD/CAM system
177
1
Information transfer from CAD to CAM
178
2
Tool path generation in 2-D NC
180
2
Manufacturing for 3-D core and cavity
182
2
CAD/CAE/CAM system for plastic injection moulding
184
3
System configuration
184
1
CAD software functions
185
1
CAE software functions
185
1
CAM software functions
186
1
Bibliography
186
1
FEM applications in near net-shape operations
187
64
J.C. Xia
S.J. Li
Y.X. Ding
Introduction
187
1
FEM applications and developments in near net-shape operations
188
18
New algorithms for automatic triangular mesh generation
188
7
New algorithms for mesh rezoning in FEM simulation
195
4
Algorithms for generating isogram in FEM
199
4
Calculation of rigid regions using rigid-plastic FEM
203
3
FEM applications in massive (bulk) metal forming processes
206
9
Simulation of rigid-plastic finite element of radial extrusion process
206
2
Rigid-plastic finite element simulation of the upsetting-backward extrusion process
208
5
Simulation of forward extrusion and upsetting-backward extrusion process
213
2
FEM application in die design
215
22
Basic equations for FEM analysis of combined die and mathematical modelling of pre-stressing force
216
3
FEM solution and program flowchart
219
3
FEM analysis for combined backward extrusion die
222
5
FEM analysis for combined forward extrusion die
227
4
FEM analysis for precision forging die for blades
231
3
Optimisation design of combined dies
234
3
FEM application in analysis of hydraulic presses
237
14
Finite element analysis of fluid transients
237
3
Non-symmetrical frontal solution method for fluid FEM
240
10
References
250
1
CAE/CNC of machines for near net-shape operations
251
14
Y.G. Wang
Q.Z. Yang
Introduction
251
1
Universal CNC systems for near net-shape operations
252
4
Composition of universal CNC control system
252
1
Intelligent control module board
253
1
Module of control software
254
1
Communication in an integrated-distributed CNC system
254
2
CNC for sheet metal forming machines
256
3
CNC system for shearing machines
256
1
CNC system for press brakes
257
2
FMC for sheet metal bending
259
6
CNC and automatic generation of system software
259
3
Bending design based on features
262
1
Manufacturability criteria for sheet metal bending FMC
262
2
Bibliography
264
1
IMOLD®: an intelligent mould design and assembly system
265
20
Y.F. Zhang
J.Y.H. Fuh
K.S. Lee
A.Y.C. Nee
Introduction
265
1
Injection moulding
265
1
Computer applications in injection mould design
266
1
IMOLD®
267
6
IMOLD® functional modules
268
5
Design information management in IMOLD®: assembly tree
273
1
An example
273
10
Conclusions
283
2
References
284
1
Computer applications in intelligent progressive dies design (IPD)
285
30
B.T. Cheok
A.Y.C. Nee
Introduction
285
1
Overview of the computer architecture
285
2
Advanced knowledge-based techniques for the modelling and generation of progressive dies
287
8
A model-based reasoning (MBR) approach for die design
287
4
Shape representation and spatial reasoning techniques
291
2
A function-spatial language for the configuration of a die
293
2
An industrial case study
295
13
Introduction
295
1
Description of stamping
295
1
Features of the part
295
1
Modelling the part
296
2
The flat pattern
298
1
The strip layout
299
1
3-D strip layout
300
3
Configuration of the progressive die
303
4
Technical data generated by the system
307
1
Conclusions
308
7
Bibliography
310
5
Index
315