Benefits of Laser Ablation
Laser ablation is a process by which a laser beam is focused on a specific area of solid metal or industrial compound to remove a layer or layers of materials. Due to the advancements in fiber laser technology, the process itself can be conducted at an extremely high level of accuracy, precision and efficiency, resulting in numerous benefits for both the process and the industries that it is applied to. We explore these benefits.
The benefits of the process
One benefit is that it can be conducted using both a pulsed wave and continuous wave laser, although the former is the primary method as a high level of intensity is needed with the laser beam being used.
Minimal heat transfer
Despite this high level of intensity, very little heat energy is transferred to the area surrounding the spot which you are performing the ablation on. This is extremely beneficial in that you can rest easy knowing you won’t be causing damage to the rest of the material that you are working with. And, as you can focus on a small spot, you can remove as much or as little material as you like.
It is also an extremely cost-effective solution for many different processes. For example, with thin film removal, traditional methods require a multi-step approach; having to create a pattern for the area that is to be removed and then using chemicals to complete the task. Laser-based ablation, on the other hand, is quick, efficient, and highly cost-effective, making it the natural solution to any thin film removal process.
As well as its cost-effective and low energy waste benefits, laser-based ablation is a safer and more environmentally-friendly approach as it uses no solvents, it is relatively easy to automate with robots and is much gentler than using more abrasive techniques such as dry-ice blasting. This results in it being the ideal choice for a wide range of materials, including metals, ceramics, and plastics.
The different uses for laser ablation
Not only are there many applications for materials in industries such as the electronics sector, for applications such as thin film removal. It is a proven method for treating epilepsy, removing brain tumours, treating spine tumours and even for the resurfacing of human skin. Other industries laser ablation is popular within include Aerospace and Automotive.
Alongside the clear benefits for the removal and treatment of certain conditions, it is also used for:
- Propulsion – the process can transfer momentum to a surface, which is used to work-harden metal surfaces
- Manufacturing – electronic semiconductors and microprocessors are laser ablated as standard now, and it is also used in processes such as the removal of barriers from gas turbine components
- Science – the process is regularly used within the scientific field to study the function of nerves and tissue by destroying them
While its primary function is to remove layers of a material, it is also used to deposit film, which is useful for nanocrystals and nanotubes, for material characterisation, which is the process of determining which materials are present on an object, and for micro-structuring, which is the fabricating of miniature structures of objects.
As can be seen, laser ablation is a multi-functioning, multi-purpose process which can be accurately controlled to provide extremely precise and efficient results. Its ability to adapt to a variety of different industries, whether this is manufacturing or science, makes it extremely useful, particularly as it can be used on everything from metal to human skin.
Laser ablation with SPI Lasers
Think that laser ablation might be just the right laser process for you? Get in contact with us here to find out more or contact us on +44(0)1489 779 696, or by email at firstname.lastname@example.org. You may also like to read our related FAQs.
Image Credit: Science Daily
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