Nextema cladding
Schermata 2021-06-16 alle 12.38.20

Nextema supports companies with technological innovation to improve and design new products and processes, to meet the needs of an increasingly dynamic and competitive market.
Our strength is the high specialization in the use of laser technology. The versatility of applications of the laser system allows our company to offer a wide range of processing possibilities, such as laser hardening, cladding, welding for lithium batteries and electric motors.

Utilize our decades of academic experience.
We do third-party laser hardening
Give us a try! 

impianto tempra laser

Laser Hardening

Nextema designs and manufactures plants based on laser technology for surface hardening applications. We also carry out machining for third parties through our robotic cell installed in the company.

Laser Cladding

Nextema integrates and manufactures plants for direct deposition or laser cladding applications. We also carry out cladding processing on behalf of third parties by means of our robotic cell.

 

Nextema Laser Processing

 

Nextema supports companies with technological innovation to improve and design new products and processes, to meet the needs of an increasingly dynamic and competitive market.

Our strength is the high specialization in the use of laser technology. The versatility of applications of the laser system allows our company to offer a wide range of processing possibilities, such as laser hardening, cladding, welding for lithium batteries and electric motors.

Laser hardening is a thermal treatment process used to improve the strength and durability of the components’ surfaces. A high powered laser diode is used in order to apply a significant amount of energy in very specific and precise areas of the surface. When the laser is working it heats instantly the material above the austenitizing temperature. Subsequently he metal cools down rapidly, forming a martenisitic structure. Compared to the other traditional hardening methods, laser hardening offers some advantages such as a minor risk of demormations, high precision and accuracy and a wide choice of suitable materials.

HOW TO PERFORM LASER HARDENING

The main steps of the process are:

  • Positioning of the piece under the diode laser. The laser hardening process is suitable to almost any kind of steel and cast iron which contains carbon.

  • Laser activation. Once the piece is in the correct position, the software activates the laser, which heats a localized surface just below its melting point. Triggered by the heat, the grid of carbon atoms rearrange itself.

  • Movement of the laser through the component’s surface. The area under the laser beam instantly reaches the target temperature. The sofware is programmed to move the laser across the surface of the component, following a prefixed path. The depth of the hardening is defined by the energy of the laser per unit area. After the has moved across an area, the surface rapidly cools by conduction. This process prevents the carbon atoms from reverting to their previous reticle, furthermore it causes the creation of a crystal structure known as martensite.

The effects of the laser hardening process can extend from 0.1 to 2 mm in the component, depending on the material and the parameters of the process.
Moreover, the laser hardening can be applied on the entire surface or only on certain sections of the material.

We carry out design projects and realization of robotic  systems for business usage of laser hardening and direct deposition applications.We also implement third-party projects through the robotic cell installed in our facility.

Nextema Laser Processing