Traceability and Performance: EVLASER Innovation in Laser Marking of Brake Discs

When to use Laser Marking on brake discs and Automotive components

Unlike other marking technologies, laser is adopted in automotive production processes when it is necessary to ensure high performance in terms of durability, precision, and in-line integration.

Laser technology makes it possible to obtain permanent, high-precision, and contactless markings, reducing the risk of deformation or surface alteration of the component, even in the presence of complex geometries.

The most widely used solutions include fiber lasers, particularly suitable for metal marking such as cast iron and steels used in brake discs.

This approach is particularly effective in production environments where high standards of quality, traceability, and operational continuity are required, such as:

• components subject to high thermal and mechanical stress, such as brake discs,
• high-throughput production processes where it is essential to avoid slowdowns or bottlenecks,
• the need for integration with MES/ERP systems for traceability management,
• stringent requirements from OEMs and Tier 1 suppliers in terms of code quality and readability.

In these scenarios, laser marking makes it possible to maintain high quality standards without impacting the production cycle, making it particularly suitable for automated lines and complex industrial environments.

Automotive Laser Marking vs alternative technologies

In industrial production, component marking can also be carried out using technologies alternative to laser, such as dot peen, inkjet, or micro-percussion.

However, these solutions present significant limitations when applied to components subject to high stress, such as brake discs.

Compared to these technologies, laser marking offers concrete advantages in terms of:

• greater marking durability, even in the presence of high temperatures and surface treatments,
• better code readability over time,
• no mechanical contact and therefore no impact on the material structure.

This makes laser the preferred choice for automotive applications where reliability and traceability are essential requirements.

The EVLASER Case History: a Laser Marking system for brake discs

EVLASER has addressed this challenge with a high-speed rotary table marking system, enhanced by proprietary vision software for dynamic part centering.

Maximizing OEE: the Advantage of the Rotary Table

In a mass production context, “cycle time” is the key KPI. A static marking system inevitably creates bottlenecks during loading and unloading phases.

The EVLASER rotary table solution eliminates these inefficiencies by operating in masked time:

• Continuous Cycle: While the laser marks a disc in a closed chamber (ensuring maximum Class 1 safety), the operator or a robotic arm unloads the finished part and loads a new raw piece on the external station, in compliance with European regulations on machine and laser system safety, ensuring operator protection even in high-intensity production environments.
• Proven Reliability: This technology now represents a consolidated solution for the national market: EVLASER boasts installations of these rotary table systems in the main plants of the most important automotive component manufacturers in Italy, confirming the robustness of the machine in intensive production contexts.
• Increased Output: This architecture enables a productivity increase of up to 40% compared to single stations.

This approach allows significant optimization of OEE (Overall Equipment Effectiveness), reducing downtime related to loading and unloading operations and ensuring greater operational continuity throughout the entire production line.

Artificial Vision and software-based centering: beyond mechanical positioning

Unlike traditional systems that require costly mechanical tooling for each disc model, EVLASER has introduced a smart alignment technology via side camera.

Many brake discs feature complex geometries (ventilation holes, asymmetric hubs) that require marking in extremely precise areas.

Our custom software manages this process in three steps:

1. Real-time Scanning: The side camera identifies the geometric features of the newly positioned disc.
2. Data Processing: The software calculates the angular deviation from the ideal marking position.
3. Automatic Centering: The system controls the precise rotation of the table or spindle, ensuring that the laser hits the predefined point with surgical precision.

This approach also makes it possible to drastically reduce setup and format changeover times, improving production flexibility and making the system particularly suitable for highly variable contexts typical of automotive components manufacturing.

Deep Marking: resistance and full readability

A key concept for the B2B supply chain is marking durability. Brake discs are subject to thermal stress, chemical washing, and oxidation.

EVLASER uses high energy density fiber laser sources designed for Deep Marking.

This ensures that DataMatrix codes and logos remain perfectly readable even after post-production treatments, ensuring component traceability throughout the entire lifecycle of the vehicle.

This technology is particularly effective on materials such as cast iron and alloy steels, commonly used in the production of brake discs, where it is necessary to ensure marking resistant to wear, oxidation, and heat treatments.

The role of DataMatrix in Automotive component traceability

In the automotive sector, the DataMatrix code represents the reference standard for component identification, thanks to its high data storage capacity and the ability to be read even in difficult conditions.

Compared to other coding systems, DataMatrix allows to:

• store a large amount of information in a small space,
• maintain readability even in case of partial damage,
• easily integrate with MES and ERP systems for production data management.

The quality of the marking and its readability can be verified according to international standards such as ISO/IEC 15415 and ISO/IEC 15416, ensuring compliance with automotive supply chain requirements.

Smart Factory and Industry 4.0 integration

The EVLASER system is not a standalone machine, but an intelligent node of the modern factory.

• MES/ERP Connectivity: Bidirectional data exchange for managing batches, serial numbers, and casting codes.
• Certified Quality: Ability to integrate post-marking verification systems for code grading (ISO/IEC).
• Heavy-Duty Hardware: Designed to withstand metal dust and vibrations typical of mechanical workshops.

Integration with industrial automation systems and PLCs makes it possible to synchronize marking with the production flow, turning the EVLASER system into an active element within the line rather than an isolated station.

This approach supports production continuity and enables real-time performance monitoring, contributing to the improvement of overall line efficiency.

The value of the EVLASER solution for Laser Marking of brake discs

Adopting an EVLASER rotary table system represents a strategic investment for brake disc manufacturers aiming to excel in terms of speed, precision, and compliance.

Our leadership is demonstrated by the widespread presence of our technologies among leading Italian manufacturers, where operational continuity is a non-negotiable requirement.

Choosing EVLASER means relying on a partner with deep expertise in production line dynamics and advanced vision software precision.

Laser marking of brake discs therefore confirms itself as a strategic technology to ensure traceability, production efficiency, and integration within modern industrial production environments.