Laser Cutting Dust Collection
Laser metal cutting is a technology that is typically used in industrial manufacturing shops but is also starting to be used in schools, small businesses, and hobbyists. Laser cutting works by directing the output of a high-power laser, by computer, at the material to be cut. The material then either melts, burns, vaporizes, or is blown away by a jet of gas leaving an edge with a high-quality surface finish. Industrial laser cutters are used to cut flat-sheet material as well as structural and piping material. Laser cutting plays a dominant role in metal processing. High-power beam sources fiber delivery and highly automated peripheral material handling systems allow for high cutting speeds, extreme precision and high productivity in both 2D and 3D applications.
Laser Metal Cutting is Divided into Three Processes
Laser metal cutting – Cutting with Oxygen
- When laser metal cutting with oxygen, material is burned and vaporized when heated by the laser beam to ignition temperature. the reaction between the oxygen and the metal creates additional energy in the form of heat, supporting the cutting process.
Laser metal cutting – Cutting with Nitrogen
- When laser metal cutting with nitrogen, material is melted solely by the laser power and blown out of the cut kerf by the gas jet’s kinetic energy. Since these gases do not react with molten metal and the material is not overheated by exothermic reactions, laser power and cutting gas pressure are much higher than with oxygen cutting.
Laser metal cutting – Cutting with LASOX
- LASOX technology uses a cutting head that directs a laser beam through the center of a gas nozzle. The laser beam preheats the steel work piece to ignition temperature, and a high-speed oxygen jet targeted at the beam’s footprint oxidizes the steel in a narrow cut. The head is mechanically moved relative to the plate, and the work-piece is severed as the force of a supersonic stream of oxygen expels molten metal and metal oxides from the kerf.
Common Types of Laser Metal Cutting
- Vaporization Cutting – the focused beam heats the surface of the material to boiling point and generates a keyhole. the keyhole leads
- Melt and Blow – uses high-pressure gas to blow molten material for the cutting area.
- Thermal Stress Cracking – Brittle materials are particularly sensitive to thermal fracture, a feature exploited in thermal stress cracking. A beam is focused on the surface causing localized heating and thermal expansion.
- Stealth dicing of silicon wafers – the seperation of microelectronic chips as prepared in semiconductor device fabrication from silicon wafers may be performed by the so-called stealth dicing process, which operates with a pulsed Nd: YAG
- Reactive Cutting – AKA ‘flame cutting’. Reactive cutting, or flame cutting, is like oxygen torch cutting but with a laser beam as the ignition source. Mostly used for cutting carbon steel in thicknesses over 1mm.
Why should I consider a Laser Cutting Dust Collector?
Laser cutting may generate gasses, fumes and various oxides that are dangerous to breathe. When returning the air from the dust collector it may require HEPA filtration. The DeltaMAXX Dust Collector Cartridge Filters are very effective at removing the larger particles all the way down to the very fine particles. MERV rating 99%+ 0.3-0.4 micron. • Imperial System’s CMAXX Laser Cutting Dust Collector is the perfect modular collector for all laser cutting jobs. The CMAXX Laser Cutting Dust Collector comes in many different variations and is modular in design so making a standard CMAXX Dust Collector model custom is an easy task. The CMAXX family is so well-designed to handle laser metal cutting dust and fume that we even named one of the collectors the “Laser”. The CMAXX Laser Cutting Dust Collector is a standard CMAXX Dust Collector with all of the specific needs to handle laser cutting dust and fume. The CMAXX Laser Cutting Dust Collector is a “packaged” dust and fume collector with everything included from an integrated spark trap to a motor starter package. This is a true plug and play industrial dust collector. We work with customers that are concerned about being compliant with EPA and OSHA. We understand the risks and concerns of handling combustible and toxic dusts. Our equipment and systems are custom designed to fit into your existing operation with little or no down time. The CMAXX Laser Dust Collector’s heavy-gauge construction along with being the first modular dust collector with no external bolt holes, creates a safe environment for your workers as well as total field flexibility. With no external bolt holes it’s easy for us to say “NO LEAKS GUARANTEED”! We specialize in OSHA and NFPA compliant systems to meet all of the newest codes. Laser cutting Dust can be highly explosive and may require chemical or mechanical isolation equipment as well as explosion venting.
Bromberg, Joan (1991). The Laser in America, 1950-1970. MIT Press. p. 202. “Laser Cutting.” – Industries & Applications Manufacturing & Fabrication Laser Processes. Linde North America Inc., n.d. Web. 10 Dec. 2013. Oberg, Erik; Franklin D. Jones, Holbrook L. Horton, Henry H. Ryffel (2004). Machinery’s Handbook (27th ed.). New York, NY: Industrial Press Inc. Todd, Robert H.; Allen, Dell K.; Alting, Leo (1994). Manufacturing Processes Reference Guide. Industrial Press Inc.