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Laser Marking

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Laser Marking is a form of engraving used to lightly etch a surface, similar to a shallow scratch. In manufacturing, marking is commonly used for identification, design or customization purposes. Marking differs from engraving in a few ways. It is important to keep these differences in mind when selecting a process. Read More…

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Leading Manufacturers

Zanesville, OH  |  740-453-1000

Is your facility in need of high performance dot peen machines? Our top of the line machinery is guaranteed to meet all of your needs. We are your worry-free provider of identification systems. We will work with your team to implement our products into your business and our services are beyond compare. Our company has proven ourselves as an industry leader!

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Sprinter Marking, Inc. $$$

Lakeway, TX  |  512-593-7100

At Automark, our team of experts is ready and willing to tackle any of your challenging assignments. We supply marking systems for a multitude of industries such as medical, cosmetic, industrial, automotive, and more. All of our machines are manufactured to the highest quality, offered at a competitive price, and are guaranteed to last. Give us a call and a representative will speak with you today!

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Automark $$$

Franklin Park, IL  |  866-344-7721

Durable Technologies was founded in 1952 and manufactures a wide range of marking machinery. This includes numbering machines, engraving machines, marking systems, hot stamping machines & marking tools. Today Durable Technologies has become a leader in its industry. We market our products through wholesale OEM’s, through wholesale channels & direct to end-user manufactures. Contact us today for a quote!

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Durable Technologies $$$

Detroit, MI  |  313-925-9000

We offer a range of marking systems such as ink marking machines. Available are hand-held markers and automatic marking machines, contact and non-contact marking systems plus permanent and water-based inks. We offer custom-made products and supplies if standard ink or machinery doesn't fit your needs.

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Carco Inc. $$$

Plymouth, MI  |  734-720-9997

Trotec specializes in manufacturing laser machines for engraving, cutting and marking. We offer international service and sales network with over 250 employees in 13 different international sales branches. We are recognized as the technological leader in the international market for laser cutting machines and laser engravers.

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Trotec Laser, Inc. $$$
placeholder image Sprinter Marking, Inc. Automark Durable Technologies Carco Inc. Trotec Laser, Inc.

Laser Marking Effect on Materials

Laser engraving creates a cone-shaped indent in the surface of the material. The indent can be as deep as 1/8 of an inch. Laser marking creates a shallower cut of one-thousandth of an inch. Marking does not cut into the material. Rather it uses oxidation to remove the surface layer.

Laser Power

To cut through material, laser engraving requires a high-heat laser. This is important because the laser must vaporize the material. Otherwise, there can be quality issues and risks of burning. Laser marking requires a low-powered laser capable of oxidation. The laser beam is slow-moving to allow for discoloration.

Durability

Because laser marking creates a shallow indent, it is often subject to wear. Marking is recommended for safety-critical parts that should not lose their structural integrity. Or surfaces that will encounter low levels of wear and tear. Marking is often used for traceability in medical devices or aerospace parts. Engraving is recommended for items that will encounter high levels of wear and tear. Because of the deep indent, engraving will last longer.

Laser marking is broken into four types: annealing, carbon migration, foaming, and coloration.

Annealing

Annealing laser marking is only used on carbon-containing metals. The process involves applying heat to the surface metal without applying aggression. This results in a solid black mark. Or depending on temperature colors can vary between shades of yellow, green and red. Annealing is used in the medical industry for internal tracking and branding.

Carbon Migration

Carbon migration laser marking is applied to most metals. During carbon migration, metal is heated causing it to bond with its carbon molecules. This process brings out metals carbon properties and results in a dark marking. Carbon migration is typically used in aerospace, jewelry engraving, and metalworking.

Foaming

Foaming laser marking is strictly used on plastics where light marking is needed. The process involves creating a molten burn on the plastic until it releases foaming gas bubbles. The bubbles change the light refraction properties of plastic. Foaming is typically used with marking ink cartridges, keyboards or cosmetics packaging.

Coloration

Coloration laser marking is used for metal and plastic. The process varies based on the material involved but mostly utilizes a foaming or oxidation process. This process results in a custom colored marking. Coloration is typically used for adding graphics, designs or images to a product. Coloration is common in decorative jewelry, color coating ear tags for cattle or marking bottle caps.