|
Over the years a large
number of techniques has been developed to join materials.
Well known joining techniques are soldering, brazing,
adhesive joining and welding, each playing an important role
in the present manufacturing industry. In particular welding
is applied on a wide scale, ranging from small products to
large industrial constructions.
In welding the parts to be
joined are heated, sometimes in combination with the
application of pressure. The necessary heat can be provided
by various sources. Use can be made, for instance, of heat
produced by electric current passage, by chemical reactions,
by radiation and by friction. Usually, a distinction is made
between fusion welding and solid state welding.
The essential feature of
fusion welding is that local melting of the material(s)
takes place during the welding process followed by
solidification, whereas in the case of solid state welding
no melting takes place and the weld is formed by plastic
deformation and solid state reactions.
During welding the material
to be welded is subjected to a thermal cycle, consisting of
rapid heating, followed by relatively slow cooling. As a
result of this thermal cycle different physical and chemical
reactions take place in the liquid and solid phase, which
are decisive for the properties of the welded
joint.
This textbook deals with the
different aspects of welding and is based on courses given
at Delft University of Technology in the period 1980 - 2008.
It is intended primarily for undergraduate and graduate
students in materials science and mechanical engineering,
but may also provide useful background information to
engineers and researchers, who are professionally involved
in welding.
The book is divided into
three parts.
In
Part I (Processes) the most important welding processes
applied in industry are addressed. Specific attention is
given to arc welding (Chapter 1), whereas a number of other
processes are reviewed in Chapter 2.
Part II
(Metallurgical aspects) deals with the effect of the thermal
cycle due to welding on the structure and properties of the
welded joint, including the development of residual
stresses.
In Part III
(Applications) the possibilities and limitations of welding
carbon and lowalloy steel (Chapter 4), stainless steel
(Chapter 5) and aluminium (Chapter 6) are discussed. Chapter
7 deals with non-destructive testing of welded
joints.
0-415-34622-3
ISBN 0415346223
|