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al. developed a system for electric product with bending
and piecing operations written in AutoLISP on the
AutoCAD with a PC [8]. Tor et al. investigated the
suitability of using a blackboard framework for stamping
process planning in progressive die design [9]. Li et al.
adopted feature- and rule-based approach and developed an
integrated modeling and process planning system for
planning bending operations of progressive dies using
C++ and ObjectARX of AutoCAD [10]. Farsi and Arezoo
described a two-stage method to determine bending
sequence in progressive dies [11]. Chang et al. established
a genetic algorithm to solve the problems of ranking the
working steps in progressive dies using AutoCAD as a
drawing tool [12]. Taking advantage of neural network and
computer-aided design (CAD) software, Pilani et al.
proposed a method for automatically generating an optimal
die face design based on die face formability parameters
[13]. Based on sheet metal operations, Singh and Sekhou
developed a punch machine selection expert system, which
was built in AutoCAD and used AutoLISP [14]. Jiang et al.
proposed a flexible and complete insert representation
scheme and analyzed the complex assembly relationships
and constraints between inserts and components [15].
Almost all the design systems mentioned above belong to
2D patterns.
As it is not easy to find defects, check interference,
modify correlated drawings, etc. in 2D patterns, the
development of 3D software and PC technology, which
describes parts in solid modeling, can dramatically help to
resolve the above problems. This technique has gradually
become a mainstream tool in the design industry.
In recent years, more and more systems were developed on
top of 3D software. An automated nesting and piloting system
for progressive die according to minimum scrap strategy on
3D SolidWorks was developed by Ghatrehnaby and Arezoo
[16]. Roh and Lee proposed a hull structural modeling
system for ship design, built on top of C++ and 3D CAD
software [17]. Chu et al. developed a computer-aided
parametric design system for 3D tire mold production by
in CATIA [18]. Kong et al. developed a Windows native 3D
plastic injection mold design system based on SolidWorks
with Visual C++ [19]. Lin et al. in National Kaohsiung First
University of Science and Technology developed structural
design systems for 3D drawing dies based on functionalfeatures in Pro/E and CATIA software [20, 21]. Lin and Kuo
also developed an integrated RE/RP/CAD/CAE/CAM
system for magnesium alloy shell of mobile phone in 3D
software [22].
Compared with the much work done in the computer-aided
process planning, less work in structure design has been done.
Most of the work is concentrated in the computer-aided
process planning [1–4, 7–13, 16–19]. Jia et al. presented a
relationship model of structural relevance in progressive dies
[23]. Wang et al. discussed association technology in
assembly design for precision progressive die on AutoCAD
[2]. Jiang et al. discussed the inserts design automation [15].
They proposed a representation scheme of inserts using an
object-oriented, feature-based approach. Methods of standard
part library construction and modeling methods of punches
and dies were discussed in references on SolidWorks [24,
25]. Zhao et al. in HuaZhong University of Science and
Technology discussed correlated design of standardized parts
and components in CAD system for progressive die on
AutoCAD [26].
For die structure design, the designer can treat each
function feature as a design unit [15, 20]. According to the
design norm and standard part library of our partner who is