5 Tips for Laser Cutting and Engraving Wood

14. March 2020 19:58

Technical Advice from Trotec Laser

Laser engraving wood offers the freedom of creating precise and personalized custom-made materials, which adds value to any business. Make your products unique by engraving images, names, or even logos into your materials. Laser cutting provides precision to custom-fit parts within a tenth of a millimeter, even with small or fine shapes. Compared to other technology, laser systems save time and can accommodate even the thinnest materials with its non-contact processing. 

Does laser cutting wood cause burning?
Yes. However, laser cutting wood is a sublimation process and is often considered highly desirable. Laser cutters offer accurate focusing, customized selections of the appropriate parameters, as well as use of suitable optics and compressed air supply for cutting and engraving of the highest quality. 

Can all woods be laser processed?
Since wood is a natural and organic material, laser users must evaluate a number of parameters including density and resin content prior to processing. For example, softwoods such as balsa will require less laser power, and cutting can be completed more quickly. On the other hand, hardwood, which is typically a dense material, will require more laser power. We recommend using compressed air for processing MDF since it consists of wood fibers that are glued.

 https://iwf20.mapyourshow.com/8_0/exhibitor/exhibitor-details.cfm?exhid=12602

Trotec Laser will be in Booth BC 1233 at IWF.  

 

Will the laser engraving always become dark?
Laser processing wood can result in a brownish-coloration on the material depending on a variety of factors. However, when processing varnished wood utilizing the appropriate settings can avoid this issue and a white engraving can be achieved. We recommend using a very low power at a high speed for this application

Can dark engraving be achieved?
Yes. Defocusing the laser beam to about 0.5-2 mm will result in the laser spot becoming larger, and the power density is then reduced. Some details may be lost in processing, but this method will produce a particularly dark engraving and we highly recommend trying it for these types of applications.

Should there be smoke in the processing area?
Laser processing wood is a sublimation process, and since the material is solid it is converted directly into a gaseous state from combustion. 

 

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