B3.5 - Production technologies for hybrid suction designs - Bonding of micro-perforated sheets for hybrid laminar flow control suction panels

Summary

The project “Production technologies for hybrid suction designs - Bonding of micro-perforated sheets for hybrid laminar flow control suction panels” focusses on a novel method to adhesively bond the outer perforated skin to the inner core-structure of an extended hybrid laminar flow control suction panel. The novelty is that the adhesive is applied before the drilling of the microholes. Furthermore, the applied drilling technology will be electron beam drilling, which has not been investigated for larger area production and provides additional advantages such as high control of inner microhole morphology and size. The project will be an important step for the applied production technology of hybrid suction panels.

Objectives

• Development of suitable adhesive systems for bonding outer metal sheets with the inner cores in xHLFC suction panels.
• Advancing electron beam drilling as the new perforation method for suction skins with pre applied adhesive.
• Development of this method towards series production.