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Oven door silicone application line

Role: Process Engineering Manager

“Silicone application on oven doors has always been a critical stage for us. We are talking about an application where precision and repeatability truly make the difference in final quality.”

Requirement

  • Silicone application on complex geometries (glass + metal)
  • Tight tolerances on the bead (continuity and thickness)
  • Non-uniform adhesion issues
  • Cycle times not aligned with the main line

“With the manual process, we had clear variations: too much silicone in some areas, too little in others. This resulted in scrap or rework.”

Solution implemented

  • Robotized cell with ABB robot for silicone application
  • Controlled dosing system synchronized with the path
  • Optimized trajectory programming for each door model
  • Precise speed/flow-rate control to ensure bead continuity

“We worked extensively on the trajectory and flow management: that is where everything is decided.”

Results

  • Perfectly uniform and continuous bead
  • Significant improvement in adhesion
  • Reduction in scrap and rework
  • Reduced cycle times, perfectly synchronized with the line

“Today the process is stable. It no longer depends on the operator, and quality is consistent.”