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NWS Laser EXPERTISE · UV 355 NM

Mark without
altering.

The UV laser targets applications where the marking must coexist with the surface: anodizing, passivation, PVD, DLC, rhodium plating and other sensitive coatings.

See applications
WAVELENGTH355nmPHOTOABLATION
COLD
01

THE CHALLENGE

When the coating
is part of the part.

A useful mark must remain legible, durable and controlled. When the part carries a functional or aesthetic layer, the process must be qualified both for the desired contrast and for its interaction with the surface.

THE PROCESS

An interaction
at the surface scale.

This local page covers the key aspects of the UV dossier: focused energy, control of thermal impact and marking precision.

01

Photo‑chemical interaction

A short wavelength promotes a surface action suited to applications that require controlled intervention.

02

Controlled thermal impact

The UV regime enables exploration of contrasts or surface changes when heat diffusion must be managed.

03

Marking precision

Beam, fixture and cycle settings must be qualified on real parts before selecting a solution.

UV laser beam over a metal surface
UV 355 NM · IN SITUA surface interaction to be qualified directly on the part.

SEE THE PROCESS

Light becomes
a surface datum.

The original visual shows the tangible interaction between the physical principle and the part to be marked.

CHOOSE THE PROCESS

UV and IR:
a matter of interaction.

Reading spotIR LaserUV Laser
Dominant mode of actionThermalSurface photo‑chemical
Main considerationEnergy and throughputSurface and coating
Recommended evaluationContrast and depthContrast, integrity and precision

Indicative comparison: the final choice depends on the material, the coating, the geometry, the desired finish and production conditions.

APPLICATIONS TO QUALIFY

Three families of
sensitive surfaces.

01

AEROSPACE · INDUSTRY

Anodizing

Identification, locating or customization on anodized parts, with attention to visual appearance and the surface layer.

  • Treated aluminium parts
  • Codes, serials and logos
  • Contrast study on a sample
02

MEDICAL · TECHNICAL

Passivation & thin films

Applications where surface finish and service cycles require marking qualification directly on the part.

  • Instruments and components
  • Permanent traceability
  • Validation on actual material
03

LUXURY · MICROTECHNOLOGY

PVD, DLC & rhodium plating

Cases where contrast, fineness and preservation of the part’s aesthetics are part of the specifications.

Watch case and laser beam on surface coating
  • Watch cases and casebacks
  • Jewellery and fine components
  • Decorative or functional finish

UV APPLICATION STUDY

Let’s start from your surface,
not from a promise.

Send a part or describe your material, its treatment and the expected result. NWS Laser qualifies the process with you.