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Laser fine welding of metals
Lasers can be used for seam butt and overlap welding
of nearly all metal used in medical device technology, like stainless
steel, gold, platinum or shape memory alloys and especially titanium
resp. titanium alloys. With this material used abundantly in this
industrial sector, traditional processing methods come up against
their limitations.
Highest mechanical strength
With up to date laser technology, spot and seam
welds in the micron range can easily be produced, even in places
that are difficult to access. Using the flexible, material adapted
pulse shaping, the heat-affected zone remains minimal and allows
the joining of highly sensitive components previously impossible
to weld with other technologies. This filigree joining technology
allows for new product designs that had previously been impossible
or uneconomic to realize.
Easy automation
The laser is a tool that is very flexible
in adapting to the production environment: manually operated and
controlled through a microscope, at a manual workstation or in automated
production, with fixed or fiber optics and with image recognition
and scanner heads for high processing speeds. Its typical process
advantages, though, are preserved for all applications: laser welded
joints are high-strength, compatible with high-temperature sterilization
(unlike adhesive joints) and, without finishing, yield pore-free,
sterile surfaces that are essential for biocompatible materials.
In medical device technology, laser welding of polymers
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