Automatic Welding Without Removing the Protective Film: The CEMSA Case Study in Brazil

CEMSA International strengthens its position as a technology partner for automatic welding thanks to a successful collaboration with a Brazilian company specializing in the production of door locks and window and door systems.

A Complex Production Need: Welding Without Scratching

The new project involved the introduction of a lock with a stainless steel faceplate, with one non-negotiable condition: maintaining the scratch-resistant protective film intact on the exposed side throughout the production process. This was a significant technical challenge, requiring a complete rethinking of the welding approach.

CEMSA responded by developing a high-productivity automatic system capable of welding one piece every 5 seconds in a continuous cycle. The system uses “indirect” projection welding, ideal for avoiding damage to sensitive surfaces.

Quality Control, Integration, and Parameter Traceability

The system is based on a 6-station rotary table, where each phase is monitored in real time. Each individual component is associated with the welding parameters used, enabling automatic statistical control. A dedicated station verifies the mechanical integrity, while any process deviations are immediately detected and corrected. Non-compliant parts are automatically separated to ensure overall quality.

This case demonstrates how listening skills, technical expertise and design flexibility make CEMSA a reliable partner for the development of customized solutions, even in the most demanding production environments.
For more information on automatic welding solutions and system customization options, please contact CEMSA directly using the contact information on this page.