How Deep Laser Engraving Works

Laser engraverinvolves using a beam of light to remove the surface of the material, leaving the surface hollow. The amount of material removed from the workpiece depends on the type of laser marking machine you are using, and the process is controlled to ensure the holes do not become too deep. HTPOWgives you the best advice and expertise through years of research.
>https://www.htpow.net/ortur-master-3-laser-engraver
Laser power is important, and if properly controlled, deep laser engraving can be achieved. The Ortur Laser Master 3can mark metal and plastic, leaving deep visible, and highly readable marks. This article will show you how to apply it to your project with Orturlaser engraver.

What is Laser Depth Engraving?

Deep Steel Laser Engraving

Deep laser engraving is a type of laser engraving that involves a higher penetration of the material surface by the beam produced by a pulsed fiber laser. The process is like traditional laser engraving. However, as the name suggests, deep laser engraving is deeper, takes longer, and has some additional requirements.
Deep laser engraving requires a skilled and experienced operator as the process takes a long time. You also need the right marking machine. Pulsed fiber laser marking machines are the only machines you can use because they are the only ones that can generate the necessary laser power to make deep marks.

The Purpose of Laser Deep Engraving

Deep laser engraving enables you to easily mark different types of materials to provide highly visible, readable, and permanent marks. This method is generally suitable for identification markings and stampings, especially those used in adverse conditions. You can also use the Ortur Laser Master 2for products such as equipment, jewelry, and large industrial equipment, which are in high demand.

What is The Deepest Depth of Laser Engraving?

Before diving into laser engraving, you should know the answer to this question. However, as with most things in marking, there is no direct answer to how deep a material will be laser engraved.
Mark enthusiasts will say that is acceptable as long as the product is affected. However, we strongly recommend that you mark for readability and the nature of the material.

Do I Need to Deep Laser Engrave My Product?

Laser engraving products should take into account the type of material you use; deep laser engraving is no exception. No, not all products are compatible with deep laser engraving. For example, deep laser engraving is not the best laser marking process for materials that will rust when exposed to moisture, such as iron.
Also not suitable for materials with protective coatings such as stainless steel. Stainless steel is a popular iron-based alloy that is impervious to corrosion. This adaptable material is strong, lightweight, and comes in different colors. However, it is not suitable for deep laser engraving. While it is possible to mark stainless steel with a laser beam, the process must be performed carefully to preserve its ability to resist corrosion.
Deep laser engraving is not suitable for stainless steel as it results in the removal of the outer layer responsible for its corrosion resistance. The outer layer is chromium oxide formed by the reaction of chromium and oxygen. Due to the formation of oxides, oxygen cannot enter the underlying steel, making it resistant to corrosion.
It will be best if you are a little cautious when marking stainless steel. It is also important to note that when removing the outer coating you will need to use other methods such as painting to avoid corrosion. So unless you have a finishing option for your product, you should consider it.

Things You Need to Consider About Deep Laser Engravers

Laser Power

Laser power is a key factor when choosing a laser for deep laser engraving. Many marking enthusiasts recommend at least 100W of laser power for such demanding marking tasks.
The results produced depend on the laser power used. However, you should also consider the material you are working with. For example, engraving metal generally requires more energy than plastic. Higher laser power should be used to cut thicker materials to obtain deep and good marks.

Lens

Laser power is not the only important factor to be aware of. Beyond that, most marking enthusiasts will look for deep laser engraving with the most compatible lenses. The lens is very important here as it determines the engraving rate as controls how the laser beam is focused. The correct lens should produce a highly focused beam to achieve the desired intensity. With the right lens, the engraving rate increases.

Material Temperature

Another important factor you need to consider is the temperature of the material. Some metals and non-metals such as plastics are easily engraved when heated. As a result, both the speed and depth of marking are increased.

Hatch Width

The laser beam crosses one line, then switches to a new line. This distance is called the hatch width. There is usually a delay before the laser starts another line. This delay is about 0.03 seconds. While this interruption may seem negligible, it is significant.
When the hatch width is less than 1mm, the delayed time lag can account for more than half of the marking time. For wider lines of 50 mm, it may only contribute up to 10%.

Scanning Speed

Scanning speed refers to the speed at which the laser beam marks the material. A low scanning speed results in a slow marking process because the laser beam stays on the same part longer. However, this results in deep sculpting due to increased energy in specific areas. Make sure you're not focusing too much on the part though, as it can cause overheating and discoloration.

Safety Precautions

In terms of security, there are two things you should be aware of. Laser beam protection is an important requirement for workers regarding the necessary regulations. Therefore, you must provide a Class I laser safety system that complies with international standards and regulations.
Additionally, engraving wears away the outer layers of the material, causing dust and fumes. Because of the many by-products of this process, you may need a laser fume extraction system to ensure your employees can breathe clean air.
What can HTPOW do for you?
Deep carving is a time-consuming process with special requirements. Sometimes these can be a huge challenge. However, what you need is to get a really good deep laser engraver. Discuss your needs with our professionals at HTPOW and realize your next project without panic.

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