TRADE OF VEHICLE BODY REPAIR - eCollege

Module 3– Unit 4
Computer-aided Design (CAD): Computer assisted design work,
basically using graphics.
Computer-aided Engineering (CAE): All computer aided
activities with respect to technical data processing, from idea to
preparation for production, integrated in an optimum way.
Computer-aided Manufacturing (CAM):
production and analysis of production processes.
Preparation of
Computer-integrated manufacturing (CIM): All computeraided
activities from idea to serial production.
The use of CAE is growing in the automotive industry and will
probably result in further widespread changes. Historically, the
aerospace industry was the leader in CAE development. The three
major motor companies of GM, Ford and Chrysler started their
CAE activities as soon as computers became readily available in the
early 1960s. the larger automotive companies in Europe started
CAE activities in the early 1970s – about the same time as the
Japanese companies.
Each new project starts with a series of detailed paper studies,
aimed at identifying the most competitive and innovative product in
whichever part of the market is under review. Original research into
systems and concepts is then balanced against careful analysis of
operating characteristics, features performance and economy
targets, the projected cost of ownership and essential dimensional
requirements. Research into competitors’ vehicles, market research
to judge tastes in future years, and possible changes in legislation are
all factors that have to be taken into account by the product
planners when determining the specification of a new vehicle.
The various stages of the design process are as follows:
• Vehicle styling, ergonomics and safety
• Production of scale and full-size models
• Engine performance and testing
• Wind tunnel testing
• Prototype production
• Prototype testing
• Body engineering for production
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