Getting Started with Laser Welding

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Getting Started with Laser Welding
Laser welding is a process to join together
metals or thermoplastics using a laser beam to
form a weld. It needs the high-intensity laser
beam to form metals or thermoplastics. The laser
weld formation takes place with intense laser
light and heats the material rapidly. It allows
small size perfect welding with the help of amada
parts and bystronic parts in small areas and is
the new emerging technology with precision, high
speed, flexibility, and less distortion.
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Now, lets understand the way laser welding
operates Laser welding is the continuous process
of pulsed laser beams. We can divide the laser
welding principle in heat conduction welding and
deep penetration laser welding. It combines with
conventional welding processes and is useful in
soldering. When the power density is less than
10105 W/cm 2, it is called a heat conduction
welding. During this time the welding depth is
shallow. You can easily join the thin parts like
amada parts and bystronic parts and visible
edges. The depth is normally below 2.5mm and
maximum its ratio is 31. When the power density
is more than 105107 W/cm2, the metal surfaces
recess into a hole while heating, forming deep
penetration welding. Deep penetration welding
features provide fast welding speed and large
depth to width ratio (D/W). Usually, the D/W
ratio of welding can be up to 121 and can go up
to 51mm.
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• Going further, here are its types
• Heat conduction laser welding
• In heat conduction laser welding, the laser beam
  melts the mating parts along with common points.
  The molten materials flow and solidify to form
  the weld.
• While following this method, the laser energy
  shifts to the workpieces solely via heat
  conduction. Heat conductivity of the workpiece
  limits maximum weld depth. Hence, the width of
  the weld is greater than its depth.
• Usually, it is useful for applications which
  require an aesthetic welding or when
  particulates concerns such as certain battery
  sealing applications.
• Deep Laser Penetration
• When the power density is big, the heat is not
  able to disperse it quickly. The workpiece is
  beyond melting and it just vaporizes.
• The vaporizing material expands and creates a
  keyhole from the surface to the depth of the
  weld. The laser beam moves

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• across the surface of the workpiece, this in turn
  helps the keyhole follow and create the deep and
  narrow weld.
• Hybrid Laser Arc Welding
• Laser welding is useful in conjunction along arc
  welding to create a Hybrid Laser Arc Welding.
• In hybrid laser arc welding, we can use any one
  of the arc welding processes like MIG, TIG, or
  SAW with deep penetration laser welding.
• This results in having deep penetration joints
  and also improves tolerance. Other undesirable
  effects like cracking and internal porosity also
  reduces.
• Weld Joint Configurations
• Welding joints are the configuration of two
  pieces of metal or more which we weld together.
  This configuration is an important factor to
  determine whether a joint will withstand the
  load on it or not.
• There are 5 basic joints which follow the
  American Welding Society (AWS) and many other
  standards.

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• Additionally, there are different types of
  welding joints like butt welding, tee welding,
  lap welding, corner welding, and edge welding
  and they require parts like amada parts,
  bystronic parts and many others which are very
  famous.
• The types of welding lasers
• There are numerous types of laser welding
  machines and each of them has unique advantages
  and features that are perfect for specific
  applications.
• Fiber laser
• Fiber lasers are useful for applications like
  welding small parts together which are useful in
  engineering, medical, or electronic industries.
  Also welding thick materials in the automotive
  and aerospace industries. Fiber lasers are very
  versatile and a low-cost way of achieving
  high-quality spot welds.
• Nd YAG Laser
• Nd YAG Pulsed Laser creates different pulses of
  controllable energy which we can shape to create
  perfect weld. This type of laser is suitable for
  producing large spot welds, as well as deep.

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• This type of Laser is suitable for producing
  large spot welds, as well as deep spot and seam
  welds.
• 3) Diode laser
• Diode lasers are perfect for high-speed welding
  and deep penetration welding. They produce high
  welds at very low heat input.
• Why laser welders are perfect for beginners
• The laser welder does not need design software.
  They are easy to operate and one can learn to
  handle them easily within a few hours. While
  working with them you only have to focus on the
  area on which you want to weld and press the
  button and start welding.
• The handheld laser welder replaces the previously
  fixed light path with a handheld type, this
  makes laser welding possible not only in the
  long-distance outdoor operation but also for
  small and hard to reach points.
• It adopts a high power laser source and creates a
  firm and high-quality well in a short time.
• The machine is compact and does not need
  installation, you just need to plug and play!

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Final words Having laser welding is the first
step for setting up your business. Working with
laser welding machines can be easy and
comfortable if you know which one is suitable for
your use. This Article Post is Originally Posted
here https//penzu.com/public/58b72d57
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