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The different techniques of laser cutting

There are several different machine tools for cutting metal plates. The most important techniques are plasma, water jet or laser. Each technique has specific advantages, depending on the application. However, when it comes to cutting sculpted contours and precise shapes, laser cutting represents the best solution. It also provides a good alternative to milling. Below, we will find out more about the different types of techniques that you can use in a laser engraver machine.

  • First, let’s understand the main advantages of laser cutting:
  • minimum thermal effort
  • very precise shapes, even in thicker material
  • precise cut
  • excellent repeatability thanks to the fact that there is no wear on the cutting tool
  • easy reanalysis

The different techniques of laser cutting

Beveling

With regard to bevelling, CO2 laser engraver and fiber cutting are both more accurate than plasma jet cutting, and faster than milling. A good CO2 laser engraver, for example, allows you to bevel ends up to 40 mm – the perfect solution for cutting steel sheets, for example.

Complex shapes and very small grooves

A good CO2 laser engraver enables you to cut complex shapes and reduced grooves up to a fraction of a millimeter.

Make sure you know the differences before picking your machine

When you have to opt for a laser engraver, it is essential to receive adequate support through the advice and experience of the specialists. What is your opinion regarding the integration of laser equipment into your machine? Is it supplied with the appropriate machining software and meets all cutting requirements for a wide range of materials? And why not set it and calibrate it? If it is starting from scratch, we recommend that you contact a qualified technician.

High Speed Recording / Marking

A laser machine that marks, engraves and cuts. It does not require two machines or transfer parts between them, and this inherent versatility further reduces costs per part.

Non-Metallic Materials

The laser engraver is ideal for cutting wood, plastic and Perspex. Provides a superb finish of Perspex ends, cuts plywood and can be used to punch paper and cardboard. As a versatile and economical method, laser cutting represents an excellent solution for suppliers in the communications and advertising industries. Learn more.

Simple re-updating

It is easy to achieve greater productivity with older or specialized machines by adding loading solutions, simply replace the laser system. The availability of ready-to-use solutions means you do not need to create your own configuration from multiple products. Dealing with any laser engraver is usually quite simple, so all you need to figure out is the kind of machine you need.

The alternative to milling: oxide-free cutting

The co2 laser engraver cut cleanly without leaving oxides of residue on the work piece. For this reason, the use of a co2 laser engraver is an excellent alternative to milling in stainless steel parts that require an exceptional finish. Given the additional productivity resulting from its speed, it makes sense to seek advice on the pros and cons of laser cutting as an alternative to milling.…

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Avoiding burn marks/smudges when engraving acrylic

Burn marks and laser cutting go hand in hand – you are cutting with a highly focused beam of light after all. Even so there are some tips and tricks to minimize this issue for different materials. Here we are going to focus on acrylic.

Solution

Most of the acrylic you will buy comes with a protective paper on both sides. It is possible for you to leave this paper on the acrylic while you laser cut you design. In our experience doing this does not interfere with the quality of the engraving at all. The biggest pitfall of this method is that you will need to peel the paper off both sides of your acrylic after you laser cut it, which can be extremely time consuming depending on how much cutting you and removing the paper can be fairly tricky depending on the complexity of your design.

Tips

As a rule: cut with paper on both sides if there is no raster engraving in the design, or if there is only heavy raster engraving. Heavy raster engravings will have no trouble burning through the paper.  Neither will heavy or medium vector engraving. However if the file has medium or light raster engraving you should remove the protective paper from your acrylic unless you have tested out that design in particular to find out if you can in fact leave the paper on.

Cutting

If you leave the paper on for a cut through acrylic you will see that the leaving the paper on produces a cut that appears much more clean that if you were to take the protective paper off the acrylic. Normally a cut can and will leave smudgy burn marks on the inside of your cuts. Which it may not be eliminated completely, these marks will be greatly reduced if you leave the paper on your acrylic while cutting.

Heavy Raster Engraving

If you leave the protective paper on while engraving you will notice that the paper produces a crisper result compared to engraving with the paper. The vaporized acrylic builds up around the outside of the letters when the paper is not use and produces this slightly ‘inflated’ look. This would probably polish off should you have the desire to do so.

Medium Raster Engraving

Again leaving on the protective paper and simply engraving through it will leave the design looking more crisp that if you were to remove the paper. However with medium raster you may have some sticky residue left over from the adhesive of the paper as it may not be as thoroughly burned as it will be from a heavy raster engraving.

So what does all this mean?

If you want to reduce some of the burning on your acrylic or get better and crisper engravings then simply leave the protective paper on while you cut or engrave it. However be sure to still remove the paper for some medium and basically all light raster engravings.…

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