DEVICE FOR MANUFACTURE OF CORRUGATED SINGLE CURVATURE FILLER Russian patent published in 2006 - IPC B29C59/00 B21D13/02 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to devices for bending sheet material to form corrugations and it can be used in devices for manufacture of folding single curvature filler used in production of curvilinear panels for aircraft and other transport vehicles. For manufacture of corrugated filler with saw-tooth corrugations with creates and hollows in form of zigzag lines device is used which contains forming mandrel consisting of row of flat forming members interconnected by tight cloth glued to their lower surfaces to form hinge joints at edges of forming members and to provide at compression by forming mandrel saw-tooth corrugations with crests and hollows in form of zigzag lines, device to change position of forming members in space and vacuum bag. Flat members are glued on cloth to provide forming saw-tooth lines of corrugated filler between rows of hinge joints in form of isosceles triangles with common bases along zigzag lines of crests formed at compression of forming mandrel to form zigzag line of crests of corrugated filler. Crests of isosceles triangles opposite to common base are orientated along saw-tooth corrugation formed at compression of forming mandrel to form zigzag line of hollows of corrugated filler.

EFFECT: provision of regular cylindrical form in cross direction of assembled multiple layer panel with corrugated filler with preset radius of curvature without internal stresses.

2 cl, 6 dwg