Panel manufacturing method, involves cutting plates, sectioning plates, and integrating plates to two opposite sides of frame, where each plate is made of micro-perforated metallic sheet having perforations with three millimeter diameter

摘要

The method involves cutting plates (2) made of micro-perforated metallic sheets, and sectioning the plates by longitudinal folding, where the sheets have perforations with diameter of 3 millimeter. The plates are integrated to two opposite sides of a frame (1) by their ends. Each plate has flat or curved lateral edges (2a, 2b) situated in respective planes (P1, P2). An independent claim is also included for a panel obtained by the implementation of the manufacturing method.