Weld Design - Theory & Practice



1.1 Responsibility of the engineer

As we enter the third millennium annis domini, most of the world's

population continues increasingly to rely on man-made and centralised

systems for producing and distributing food and medicines and for

converting energy into usable forms. Much of these systems relies on the,

often unrecognised, work of engineers. The engineer's responsibility to

society requires that not only does he keep up to date with the ever faster

changing knowledge and practices but that he recognises the boundaries of

his own knowledge. The engineer devises and makes structures and devices

to perform duties or achieve results. In so doing he employs his knowledge

of the natural world and the way in which it works as revealed by scientists,

and he uses techniques of prediction and simulation developed by

mathematicians. He has to know which materials are available to meet

the requirements, their physical and chemical characteristics and how they

can be fashioned to produce an artefact and what treatment they must be

given to enable them to survive the environment.


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