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Glossary of laser cutting terms - M
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Machine-Readable Code
Special machine programming language code designed for industrial
machines to carry out unique and repeatable commands accurately
and quickly. See G Code.
Material Thickness
One of the primary considerations is laser size. This depends
on the materials to be cut, and their thickness. Basically,
the thicker the material, the higher the KW rating needed
for a laser to achieve a satisfactory cutting rate.
Maximum
Permissible Exposure (MPE)
The level of laser radiation to which a person may be exposed
without hazardous effects or adverse biological changes in
the eye or skin. See Nominal
Hazard Zone.
Maximum Sheet Thickness
The maximum thickness (in mm or inches) that a particular
laser will cut for a specific material. The maximum cutting
limit for a particular material.
Melt Shearing
A laser cutting process which produces a melt that is blown
out of the melt zone by a gas jet, which is usually air. The
cut edge that is the result of this cutting process is of
good quality but covered in microscopic ripples. It is also
referred to as “fusion cutting."
Melting Point
The temperature at which the material melts. Materials with
high melting points must be laser cut more slowly because
more energy is required to melt them. Ceramics and some metals
have high melting points.
Micrometer
A "MY-kro' mee-ter" is a unit of length equal to one millionth
of a meter, or one micron.
Mild and
Carbon Steels
Steels that are almost totally iron (99%+). Both are easily
cut by laser cutting using a combination of melt shearing
and a chemical reaction with a cutting
gas jet, usually oxygen.
Mode Locked
A method of producing laser pulses in which short pulses
(approximately 10-12 second) are produced and emitted in bursts
or a continuous train.
Monochromatic
A light that consists of only one wavelength. An industrial
laser beam consists of a very narrow band of wavelengths around
a central wavelength.
Moving Optics Laser
A laser which uses moving mirrors to reflect the laser beam
to the cutting head while the workpiece material remains stationary.
Moving Workpiece Laser
A laser which has a stationary cutting head and where the
workpiece moves to produce the desired cutting.
Multi-Axis Laser Cutting
A type of laser cutting using multiple axes instead of one.
Their advantage is the ability to cut three-dimensional shapes.
However, multi-axis cutting is more expensive than flat bed
cutting, is slower to set up, and introduces more complex
safety hazards.
Multi-Axis Machining
The ability to machine materials from multiple axes instead
on one or two typically coordinated utilizing the latest CAD/CAM
hardware and software. Multi-axis machining provides fast
and high precision machining for the tightest tolerances and
most complex jobs.
If you would like more information about our laser cutting and metal fabrication services, please use our contact
form or email us at info@teskolaser.com.
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