Page 1 - Laserline-Case-Study-Laser-assisted-non-destructive-testing
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Laser Assisted Non-Destructive Testing
Task Result
Due to increasing demand from manufacturers for Utilising infrared thermography equipment combined with
advanced quality control and testing without incurring the an LDM 1500-100 diode laser fitted with specialized
significant costs of conventional testing, Ken Automation optics from Laserline GmbH to produce a large and
of Japan has developed a process for testing large scale extremely homogenous energy distribution on the
components in a highly cost effective manner. Conven- inspected component, Ken Automation has now installed
tional non-destructive testing (NDT) e.g. X-ray and many systems worldwide for NDT.
ultrasonic, are too costly and time consuming to imple-
ment in mass production. The NDT must prove to be The process can be applied to welding of all types
completely reliable, and yet work at high speed and with (especially automotive). Additionally, if the system is
little or no pre and post handling procedures required for it utilized to test laser welding it is also possible for the
to be applicable to high volume manufacturing. welding diode laser to be utilized for the inspection
heating, helping to reduce inspection costs even further.
Procedure
Due to the extremely short rise time, and high power of
the diode laser it is highly effective as a heat source for
non-destructive testing of various materials. When this is
combined with a variety of specalised optics and ho-
mogenising components from Laserline, a large test area
can be precisely and uniformly heated.
To internally visualise the joint or material condition, the
inspection object is irradiated with a homogenous laser
beam, then through detection with an infrared camera the Material: Various
changes in radiant heat can be analysed. Task: Internal weld inspection
Laser: LDM 1500-100
Optics: Various homogenous profiles to suit parts
Parameters: 1 kW, short duration pulse
Result: Reliable, cost effective NDT
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