The Amazing Qualities of Laser Cutting
Laser (Light Amplified Stimulated Emission of Radiation), as the name suggests is basically a device that optically amplifies and emits a strong beam of light through stimulated emission of electro-magnetic radiation.
Its properties of
• monochromaticity (single wavelength);
• directionality (low divergence which does not let the beam spread);
• intensity (high density of usable photons);
• coherence (same phase relationship) allow lasers to be used for a variety of useful things; especially coherence enables it to be used for applications like laser cutting and laser lithography.
Spatial coherence allows the light beam to be focused on a tight spot, thereby enhancing the ease of laser cutting. The whole process involves concentrating the beam on the material to be cut, after which the material melts, burns, vaporizes or is blown by a jet of gas. Other methods of laser cutting are reactive cutting, thermal stress cracking and stealth dicing of silicon wafers.
Developed in 1965, laser cutting was first used to drill holes in diamond dies and then in the early 1970’s to cut titanium for aerospace purposes. At that time laser cutting was done a using oxygen jet. The British had introduced oxygen-assisted laser jets in 1967. Laser cutting is a process where laser is used to cut materials, mainly for manufacturing purposes. In the recent years things have changed and laser cutting is being used at homes, schools and hobbyists.
Among the many companies providing services in laser cutting, LLTI is one of the most renowned ones all over the world. They use the technique on a wide range of materials like glass, lenses, ceramics, stainless steel, diamonds and crystals. This also enables them to cater to a larger number of people. The major types of lasers used for laser cutting are CO2 lasers, neodymium (Nd) laser and neodymium-yttrium-aluminium-garnet (Nd-YAG) laser.
CO2 lasers are mainly used for boring, cutting, scribing and etching. Neodymium (Nd) laser are used for high energy pulses, low repetition speed (1 kHz) and boring. The neodymium-yttrium-aluminium-garnet (Nd-YAG) laser is very similar to the neodymium (Nd) laser and finds its applications in very high energy pulses, boring, engraving and trimming.
• monochromaticity (single wavelength);
• directionality (low divergence which does not let the beam spread);
• intensity (high density of usable photons);
• coherence (same phase relationship) allow lasers to be used for a variety of useful things; especially coherence enables it to be used for applications like laser cutting and laser lithography.
Spatial coherence allows the light beam to be focused on a tight spot, thereby enhancing the ease of laser cutting. The whole process involves concentrating the beam on the material to be cut, after which the material melts, burns, vaporizes or is blown by a jet of gas. Other methods of laser cutting are reactive cutting, thermal stress cracking and stealth dicing of silicon wafers.
Developed in 1965, laser cutting was first used to drill holes in diamond dies and then in the early 1970’s to cut titanium for aerospace purposes. At that time laser cutting was done a using oxygen jet. The British had introduced oxygen-assisted laser jets in 1967. Laser cutting is a process where laser is used to cut materials, mainly for manufacturing purposes. In the recent years things have changed and laser cutting is being used at homes, schools and hobbyists.
Among the many companies providing services in laser cutting, LLTI is one of the most renowned ones all over the world. They use the technique on a wide range of materials like glass, lenses, ceramics, stainless steel, diamonds and crystals. This also enables them to cater to a larger number of people. The major types of lasers used for laser cutting are CO2 lasers, neodymium (Nd) laser and neodymium-yttrium-aluminium-garnet (Nd-YAG) laser.
CO2 lasers are mainly used for boring, cutting, scribing and etching. Neodymium (Nd) laser are used for high energy pulses, low repetition speed (1 kHz) and boring. The neodymium-yttrium-aluminium-garnet (Nd-YAG) laser is very similar to the neodymium (Nd) laser and finds its applications in very high energy pulses, boring, engraving and trimming.
Some of the applications in which LLTI excel are:
(a) Dicing and shaping of semiconductor wafers: This provides a huge market to them in the field of electronics. Repair and fabrication of IC is done using lasers now-a-days.
(b) Cutting metal and various polymers: The chemical industry is thus benefitted too. Usage can be found in the bio-absorbable materials too.
(c) Gaskets, gears, washers, stencils, etc.
(d) 2-D ceramic parts and nitinol parts: This has applications in electronics as it can be used for IC substrates.
LLTI produces customised parts (holes, slots, custom patterns) for its customers. They get exactly what they need; all they need to do is let LLTI know what their requirements and specifications are. They have already done laser cutting on steel (tool steel, Haste alloy, SS), aluminium, magnesium, nitninol, copper, brass, platinum, gold, tungsten, tantalum, titanium and molybdenum. Their applications are not only confined to metals and have done laser cutting successfully on polymers, acrylic, ceramics, sapphire, graphite, polymides, diamond, semiconductor wafers, circuits and even recently on plastics.
(a) Dicing and shaping of semiconductor wafers: This provides a huge market to them in the field of electronics. Repair and fabrication of IC is done using lasers now-a-days.
(b) Cutting metal and various polymers: The chemical industry is thus benefitted too. Usage can be found in the bio-absorbable materials too.
(c) Gaskets, gears, washers, stencils, etc.
(d) 2-D ceramic parts and nitinol parts: This has applications in electronics as it can be used for IC substrates.
LLTI produces customised parts (holes, slots, custom patterns) for its customers. They get exactly what they need; all they need to do is let LLTI know what their requirements and specifications are. They have already done laser cutting on steel (tool steel, Haste alloy, SS), aluminium, magnesium, nitninol, copper, brass, platinum, gold, tungsten, tantalum, titanium and molybdenum. Their applications are not only confined to metals and have done laser cutting successfully on polymers, acrylic, ceramics, sapphire, graphite, polymides, diamond, semiconductor wafers, circuits and even recently on plastics.
LLTI Laser Cutting believes in customer satisfaction and thus always provides the best quality products and services only. This has gained them global recognition as one of the best. Their research has helped them produce specially focused systems and can now produce kerfs having widths below 10 micrometer level. Their motion systems allow them the best possible positional accuracy within the working area.
Get introduced to laser cutting with the best. Be a part of the many that are doing so and still hold your own identity using your innovations.
Get introduced to laser cutting with the best. Be a part of the many that are doing so and still hold your own identity using your innovations.