Looking At The Working
Principle Behind Laser Welding
By: Muna Wanjiru
The modern use of laser welding is rooted in the
scientific discovery of the first laser in the
1960s, when the effects of an amplified light
beam forced by radiation emission were put into
practice. The working principle behind laser
welding actually lies in the emission generated
at the meeting point between light and metal,
with the latter emitting force radiation.
Presently, laser welding is expanding in various
domains of activity since it brings enormous
advantages with it such as a very deep weld
penetration and minimal levels of heat inputs
which cannot be achieved with traditional
welding technologies.
The energy transfer is the one that makes the
difference between classical welding and laser
welding in various domains of activity. We can
talk about two elements that characterize the
efficiency of laser welding; first of all the
heat ratio required by a specific workpiece and
then the melting power in the fusion area.
Furthermore, laser welding does not depend on AC
or DC outputs and it is not limited by the
conductive property of a specific material. The
contact and fusion are possible with almost any
material without even creating x-rays or
requiring the formation of a vacuum.
The working principle in laser welding is the
energy of light, hence the results are almost
impeccable with a welded joint that has highly
superior resistant properties. The penetration
of a metal piece is directly influenced by its
physical properties like conductivity, thickness
or density; when a concentrated beam of energy
is applied to a workpiece, the melting is
immediate before heat may affect the operational
area as such. The force of the energy beam in a
focal point is given by the careful choice of
special lenses. Correct mirror and lens
applications in laser welding may guarantee the
concentration of the light beam on spots smaller
that 0.005.
The main industries to profit from the use of
laser welding are aerospace building, military
and defense, medical research, instrumentation,
electronics and so on. Laser welding actually
improved the execution of many delicate works
that were almost impossible to achieve before,
and here we refer to the creation of very deep
or narrow welds and the absence of any
distortions in the process. Small or very thin
items could not be joint very well before the
development of laser welding, not to mention
that the resistance of the welds is incredible
as compared to those resulted from classical
welding procedures.
Muna wa Wanjiru Has Been Researching and
Reporting on Welding for Years. For More
Information on Laser Welding, Visit His Site at
LASER WELDING
Article Source: http://www.articlesnatch.com
About the Author:
Muna wa Wanjiru Has Been Researching and
Reporting on Welding for Years. For More
Information on Laser Welding, Visit His Site at
LASER WELDING
Tags: home-and-family, home-improvement, laser
welding
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