Metal part engraved with a serial number and a dot peen Datamatrix code

Metal marking

Ensuring precision and durability in metal part identification

In the industrial world, the identification and traceability of metal parts are essential in many businesses. Proper identification ensures accurate tracking through manufacturing, aiding in quality control and regulatory compliance. Traceability allows for efficient maintenance and swift action in case of recalls, enhancing safety and operational efficiency. 

Metals are used for their durability, high strength, flexibility, and resistance to wear, making them ideal for industrial production. 

Our advanced metal marking machines deliver precision and durability, providing high-quality, permanent marks such as serial numbers or 2D codes. Explore our range of products to find the perfect solution for your metal part marking ​needs, ensuring reliable and effective part tracking throughout the lifecycle of your components.

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Are you interested in metal engraving for personalisation?  Please visit our dedicated page.

Our metal marking machines

Our metal laser marking machines can identify parts without contact and do not require it to go through pre-treatments or post-treatments. The result is a permanent, resistant, high contrast marking with a very high definition finish, all without damaging the metal :

  • Our integrable laser machines (Fiber, MOPA, Hybrid, Green) are tailored for industrial production lines and high marking rates. They are mainly used to identify parts one at a time, with low cycle-times. Whether small, large, plastic or metal parts.
  • Our laser stations (WeLase™, LW2, LW3) meet strict security standards and ensure Class 1 laser safety for the operator and his environment. Parts can be marked by unit or batch, all within the confines of the machine’s enclosure.

Integrated laser system to mark and engrave on all metals.

Fiber Laser marker for industrial production line

FIBER laser

INTEGRABLE LASER MARKER
  • Marking area: from 65 x 65 to 205 x 205 mm
  • Materials: All metals
  • Applications: Identification, manufacturing

Integrated laser system for high-quality marking on metals and plastics.

MOPA LASER Teaser card

MOPA Laser

INTEGRABLE LASER MARKER
  • Marking area: from 65 x 65 mm to 205 x 205 mm
  • Materials: Plastics and metals
  • Applications: Identification, manufacturing

Integrated laser system for high quality marking on plastics and metals.

Hybrid laser marker for industrial production line

HYBRID laser

INTEGRABLE LASER MARKER
  • Marking area: from 65 x 65 to 205 x 205 mm
  • Materials: Plastics and metals
  • Applications: Identification, manufacturing

Integrated laser system for high quality and cold marking on plastics and precious metals.

Green laser marker for production line

GREEN laser

INTEGRABLE LASER MARKER
  • Marking area: from 65 x 65 to 205 x 205 mm
  • Materials: Plastics and precious metals
  • Applications: Identification, manufacturing

Small laser engraver for all kind of engravings.

WeLase™ compact laser engraver

WELASE

LASER STATION
  • Marking area: 110 x 110 mm
  • Materials: Organic materials (wood, glass, leather, paper), painted surfaces, metals and plastics
  • Applications: Personalisation, Identification

Medium fully automated laser marking station.

LW2 fully automated laser marking station

LW2

LASER STATION
  • Marking area: up to 205 x 205 mm
  • Materials: Metals and plastics
  • Applications: Identification, personalisation

Large fully automated laser workstation with Fiber, Hybrid or Green sources

LW3 large fully automated laser marking station with Fiber, Hybrid or Green sources

LW3

LASER STATION
  • Marking area: up to 875 x 300 mm
  • Materials: Metals and plastics
  • Applications: Identification, personalization

    Metal part marking by dot peen or scribing equipment is performed thanks to a tungsten carbide stylus. 

    For dot peen marking, the stylus comes into contact with the surface and deforms the material through a succession of impacts, resulting in a hollow marking. Every of these metal marking machines (Impact, XF510p, XF510m, XF530) permanently marks industrial parts with a tamper-proof serial number, 2D code, etc. The XF series are to be fitted to a production line, while the Impact can be used on a benchtop.

    While for scribing, the stylus scratches the material’s surface, leaving a deep groove. This is performed more quietly by machines like the XF510r and SV530. This elegant marking method is primarily used for VIN codes.

    Different metal marking technologies

    Because of the very nature of lasers, their interaction with parts can be altered according to the marking parameters and the part itself. Identifying parts with a metal laser marking machine can produce the following effects: 

    • Metal laser etching: removes a very small amount of material and slightly changes the colour on the surface to enhance readability.
    • Deep metal engraving: ideal when post-treatment is expected or if the surface material is rough. This process applies more heat to the material, creating a visible cavity.
    • Metal annealing: a specialised process to ensure lasting marks.
    Metal marking code on a bearing ring

    Dot-peen marking has the advantage of being fast and durable. Using a hard carbide tip, this technology deforms the surface of any metal and creates a small cavity of up to 0.3mm. This technology has three main marking methods: 

    • Dot by dot: precise metal part marking with individual dots.
    • Continuous line: creates a smooth and constant line.
    • Deep marking: achieves deeper marks with multiple consecutive hits per dot.
    Pneumatic vs electromagnetic dot peen marking comparison on metal surface

    Simply put, this technology consists of a hard tip scraping and scratching the surface of the metal part. 

    This method produces aesthetic metal markings, shallow or deep. Some key features are:

    • Light and fast: quick marking for less demanding applications.
    • Deep marking: for very durable identifications
    • Datamatrix kit: (optional kit for XF510r) reproduce the dot-peen technology and mark 2D codes or texts.
    Gravotech - metal marking machine

    Rotary metal part marking​ can produce a variety of thin to deep markings thanks to the range tools: cutters and diamond tips. In addition, rotary metal marking machines can hollow or cut parts. Here are the most common marking types in the industry:

    • Marking: standard mode for detailed and precise identification.
    • Deep marking: for more profound characters and codes in the metal.
    • Milling: combining marking and cutting for complex designs.
    Front panel made with a metal engraving machine

    Main metals used in the industry

    When choosing metals for industrial part marking, it is essential to understand the unique properties and benefits each metal offers. Common metals used in the industry are selected for their specific advantages, such as durability, corrosion resistance, strength, and other key features. These characteristics make them ideal for various metal part marking applications. Let's explore the key characteristics of stainless steel, aluminium, copper, titanium, and carbon steel.

    Identification marking showing permanent product traceability code on an industrial steel part

    Carbon steel

    • Strength: high tensile strength, suitable for structural applications.
    • Cost-effective: generally more affordable than other high-performance metals.
    • Versatility: used in a wide range of industrial applications.
    • Weldability: easily welded and fabricated into various shapes.

    Commonly named steel, this metal is easily marked with laser, dot peen, scribing and rotary marking technologies.

    Learn more about steel marking
    Stainless steel part

    Stainless steel

    • Corrosion resistance: highly resistant to rust and corrosion, making it ideal for harsh environments.
    • Durability: strong and durable, suitable for high-stress applications.
    • Aesthetic appeal: often used for its sleek and modern appearance.
    • Non-reactive surface: suitable for medical and food industries due to its non-reactive nature.

    This metal can be marked with either laser, dot peen, scribing or rotary marking machines.

    Learn more about stainless steel marking
    Aluminum automotive part marked with DataMatrix code for traceability

    Aluminium

    • Lightweight: significantly lighter than steel, reducing overall weight in applications.
    • Corrosion resistance: naturally forms a protective oxide layer that prevents corrosion.
    • Malleability: easy to form and machine, allowing for complex designs.
    • Thermal and electrical conductivity: excellent for heat sinks and electrical components.

    Aluminium is mainly marked with dot peen and scribing marking machines.

    Learn more about aluminium marking
    Rotary device holding a copper pipe inside a dot peen marking machine

    Copper

    • Electrical conductivity: exceptional electrical conductivity, widely used in electrical components.
    • Thermal conductivity: high thermal conductivity, making it useful for heat exchangers.
    • Corrosion resistance: good resistance to atmospheric and seawater corrosion.
    • Malleability: highly malleable, suitable for intricate marking and forming.

    The main marking technologies used on this metal are laser, dot peen, scribing and rotary.


     

    Want to mark copper?

    Contact us
    Hip prosthesis with metal marking including Datamatrix and serial number

    Titanium

    • High strength-to-weight ratio: strong yet lightweight, used in aerospace and medical applications.
    • Corrosion resistance: excellent resistance to corrosion, especially in saltwater environments.
    • Biocompatibility: non-toxic and compatible with human tissues, ideal for medical implants.
    • Heat resistance: maintains strength and integrity at high temperatures.

    Because of its hardness, our recommendation is to use laser, dot peen or scribing marking technologies to identify your titanium parts.

     

    Want to mark titanium?

    Contact us

    Coated and anodised metals

    In addition to raw metals, coated and anodised metals are widely used in industrial applications. Metal coating is the application of a protective or decorative layer to a metal surface, while anodisation is an electrochemical process that increases the thickness of the natural oxide layer on the surface of aluminium for example.

    These treatments are part of what is called pre- and post-treatments. Some notable examples would be:

    • Galvanised Steel
    • Powder-Coated Metals
    • Electroplated Metals
    • Anodised Aluminium

    These treatments significantly enhance the properties and qualities of metal parts, but come with constraints when identification and traceability of industrial metal components is to be considered.

    Sandblasting of an automotive metal part before the permanent marking process

    The impact of pre- and post-treatments

    on metal part identification

    Pre- and post-treatments of metal parts are crucial processes in the industry to increase durability, protection against abrasion or add features such as electrical conductivity and corrosion resistance. But they significantly impact part identification.

    • Pre-treatment involves cleaning, degreasing, and applying coatings or primers to the metal surface, ensuring optimal adhesion of subsequent layers, such as paint or plating, and removing contaminants that could lead to corrosion or defects. Common pre-treatments include sandblasting, chemical etching, and anodising.
       
    • Post-treatment focuses on improving the final properties of the metal part. It includes techniques like heat treatment, annealing, and surface hardening to enhance strength, hardness and friction level.

    When choosing an industrial marking technology, it is essential to consider these treatments, as they can affect the marking process and the durability of the marks. For instance, some markings may not withstand high-temperature post-treatments, while others may require specific surface conditions.

    Need advice for your project?

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