SCOPE OF CAD/CAM/CAE
Integrated CAD/CAM/CAE Software like
Pro/Engineer, I-DEAS & CATIA help manufacturers optimize product concept
early in Design process, enabling them to significantly improve product
quality, while reducing product development time and cost.
Moreover people having 3D CAD/CAM/CAE
knowledge have better chances of growth, immediate employability after
completion of course, graduation and chances of jobs abroad.
As the market economy opens more and more
it has become extremely competitive and with this state of economy, skilled
people play the most important role in organization. Hence it becomes
imperative on the part of top Tool Room Training centers and Engg. Colleges to
especially look for new initiatives towards improving the skills and knowledge
of students. An emerging trend of Engg. Education in Tool Room and the world is
the rapid incrementation of CAD/CAM/CAE software as an essential part of
curriculum.
The primary reasons for this trend are
enumerated as follows:
v
Rapid
shift from manual Design and Production system of Engg. Industry to highly
productive quality and cost effective CAD/CAM/CAE system. In fact most of Tool
and Die, Automotive, Heavy Engg., Industrial Equipment industry etc. in India
and the World are totally working on CAD/CAM/CAE equipment. In continuation in
above points many of companies as recruiters are looking at CAD/CAM/CAE
knowledge as part of essential profile of recruiting students.
v
Knowledge
of CAD/CAM/CAE system shall be an added weapon for students seeking admission
to post graduate M.S. courses and jobs abroad.
v
These
CAD/CAM/CAE systems shall prove to be an excellent tool for Industry, Research
setup for Professors and Academically Bent Students. The question, Which are
the industries that need more skilled man power and what for these segments
skill sets are available, such of these segments are:
Tool Room Process
M/C
M/C Tool Defence
Automobile Auto Ancillaries
GEOMETRIC MODELLING: -
Design involves the development of
the shape and dimensions of a component. During designing several factors are
to be considered simultaneously. Some of them are stress requirements, method
of manufacture. Geometric modeling is the first step in CAD. A geometric model
is created on the screen using different techniques. Once creating this model
can be easily altered in geometry and configuration to yield a satisfactory
shape. The next step is deciding on the exact dimensions. The results of
geometric modeling will further be use by CAM in the preparation of NC tapes
for the component.
ENGINEERING ANALYSIS: -
The most important function of CAD is
engineering analysis. Engineering analysis basically involves deciding the
exact dimensions of the component. These values have to be arrived at by
analyzing the component in terms of the loads it has to withstand in function.
CAD provides sophisticated method like the finite element technique.
Unsatisfactory design may require several iteration of the whole process. The
computer scores over the human in its capabilities of rapid information
retrieval, numerical processing and repeating a process without fatigue.
SIMULATION: -
Simulation, in the CAD/CAM context, means duplicating on the video
screen a replica of the actual physical situation the designed component is
likely to be in. for instance, an aeroplane will be subjected to wind loads. In
the conventional method, the aeroplane will be tested in a wind tunnel using a
prototype. This is an expensive and inflexible process, expensive because of
the physical construction of the wind tunnel and the prototype, inflexible
because it may not be possible to test various sizes and shape under a set of
test condition. Computer simulation gets rid of both these limitations. It
involves the testing of a graphic model whose size and shape can be varied at
will. Computer simulation does not completely do away with prototype testing. A
near perfect shape can be determined using simulation, which can later be
tested with a prototype under test conditions.
DRAFTING: -
The logical step would be to produce a drawing of the component. A
drawing is dispensable for the production of the component. Not only the
components designed by engineering analysis, but also complex layouts, assemblies
can be created interactively and plotted in about one tenth of the normal time.
Automated drafting has resulted in enormous productivity gains in terms of
time, labour and expenses.
EXPERT SYSTEMS: -
The latest development in CAD is the use of Expert systems. An Expert
system has an “ intelligent data-base” called knowledge base and reasoning
logic. It may contain, for example, the details of the breakdowns that occurred
in the industry. On a later date, the user has only to feed in the conditions
under which a breakdown occurred. The expert system discovers the reason for
the breakdown. This is only one application of expert systems. Wherever
decision making under multiple constraints is involved expert systems are used
as logic support systems.
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