Complete Guide to Laser Engraving Machines for Metals

Metal engraving is a method used to engrave text, logos, photos, and dates on metal surfaces. Metals are marked for part identification and traceability. However, out of the several marking methods and techniques available, laser engraving on metal is the most popular. Different industries use a laser engraving machine for this purpose. This technique is excellent as it offers durable and long-lasting engraving output. You can engrave different metal products like keyrings, reusable bottles, and jewelry. 

Why use a laser engraving machine?

Laser engraving, which uses a high-powered laser beam, removes the substrate material at higher temperatures. This high temperature vaporizes the substrate, which leaves a deeper depression and permanent branding. As a consequence, whether it’s information display, traceability, attractive designs, or profile creation, laser engraving is the preferred method.

What are the applications of metal laser engraving machines?

These engraving machines are used in the automotive, machine, pipe, hardware, and tool industries to add barcodes, serial numbers, logo etching, and tracking numbers to parts and products.

Industries that require traceability

Every small and large firm strives to include traceability in their products because it allows them to check quality and keep their distinctive character. For such uses, a metal laser engraving machine creates a lasting mark. In the medical business, for example, metal laser marking devices are used to keep medical equipment identifiable and traceable.

Industries that require clear markings

These engravings are not only readable but also lasting. This characteristic makes it a once-in-a-lifetime task that does not wear off and prevents product tampering.

Industries that require accurate markings

Metal laser engravers are quite accurate. As a result, they’re ideal for marking heavy industrial metallic parts and graded measurement equipment. This distinguishes laser engravers from other types of engravers. Even dot peen engravers cannot achieve the same level of precision as laser engraving machines when engraving the smallest details on measurement equipment. Laser engraving eliminates the potential of human mistakes.

Here are several types of laser engraving machines  

Fiber Laser Marking Machines for Metals 

The fiber laser is a solid-state laser that can mark or engrave metallic surfaces. The wavelength of the lasers used in fiber laser engraving machines is around 1.06 micrometers. This provides metal engraving machines with a narrow focus diameter.  Because of their lower wavelengths, fiber laser engraving tools have a hundred times the intensity of CO2 technology.

CO2 lasers

CO2 lasers have a wavelength of 10,600nm and are fitted with sealed-tube systems and galvo-steered beams, making them perfect for engraving a variety of organic materials such as wood, glass, ceramics, and plastic. These lasers can also be used on metals, but they require a specific marking agent that adheres to the surface and leaves a permanent, high-contrast mark.

UV lasers

UV lasers use ultraviolet light with a wavelength of 355nm to produce very little heat.  This low-heat property makes them excellent for engraving materials with low temperature thresholds, such as those typically used in the electronics sector, such as circuit boards and microchips.

Final Words

When engraving on metals, laser technology is unrivaled owing to its efficiency, speed, dependability, precision, and lack of maintenance. Are you in a metal-only sector and need marking done? Metal laser engraving machines should be at the top of your checklist. Understand your metals and select the best laser marking machine for your business. It’s time to take charge of your business like a true professional, and Micro Industrial Solutions can help you do so. We build and supply top-notch, customized laser engravers to suit your requirements.