|Litron Lasers designed for Surface Processing & Ablation applications|
|ㆍ작성일: 2017-11-29 (수) 14:28||ㆍ조회: 217|
Litron Lasers designed for
|Laser Shock Peening (LSP)||LPY10J Series||LPY7000 Series||LPY742 HF Series|
|De-Flashing||LPY742 HF Series||TRLi Series|
|Pulsed Lasr Deposition (PLD)||LPY7000 Series||LPY700 Series||TRLi Series|
|Laser Cleaning||LPY742 HF Series||LPY700 Series||TRLi Series|
|LIBS||LPY Series||TRLi Series||Nano Series|
|Laser Marking||LPY Series||TRLi Series||Nano Series|
|Annealing||LPY10J Series||LPY7000 Series||LPY700 Series|
>Click here to see the case study of Laser Shock Peening (LSP) of Advanced Ceramics using Litron Lasers
Pulsed Nd:YAG lasers are used in a wide variety of materials processing applications. As well as obvious industrial applications such as cutting and welding, surface treatment is increasingly being done with lasers.
Laser marking has been used for many years to mark an increasing variety of materials. Typically, the beam from a Q-switched, continuously pumped laser such as Nd:YAG is scanned over the surface to be marked by computer controlled galvanometers.
Litron pulsed Nd:YAG lasers are in use at semiconductor plants for deflashing. This involves the selective removal by ablation of surplus resin encapsulation material from the lead frames of packaged chips. 532 nm is used as it is strongly absorbed by the resin but reflected by the metal lead frames. Using the differential absorption between a substrate and contaminant, the technique is extended to cleaning of a variety of materials, such as stone, paper and even works of art without the use of chemicals or abrasives.
Laser peening is analogous to shot peening to harden metal surfaces. An intense Q-switched pulse is sufficiently absorbed to create a shock wave, which propagates through the material causing work hardening. Lasers are also used for annealing materials during manufacture. A metal absorbs heat from a laser beam and this heat treatment can be used to reduce the brittleness of cast components.
Laser deposition is a technique where a surface coating can be created using the interaction between a laser and a gas containing the material to be deposited. Examples include photodissociation of silane to create a silicon film or of methane, which under special temperature and pressure conditions can yield a diamond film.
The most common Surface Processing disciplines are listed here with links to the most appropriate Litron laser for that application.
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