Back to results
US 4,020,542 AGranted
Sandwich panel fabrication
AssigneeUnited Technologies Corporation
InventorEdward R. Slaughter
Life of this patent
Estimating the term…
Abstract
In the manufacture of sandwich panels, a filler assembly is made up of rib elements and core elements that are roll bonded into a unitary structure, and slices are then cut from the unitary structure forming filler assemblies to be positioned between surface sheets. The surface sheets and the filler assemblies are then bonded together to form the panel.
Claims8
In the manufacture of sandwich panels the steps of:
- making a core composite stack consisting of a stack of alternating core alloy and rib alloy sheets;
- bonding all said sheets together into a unit;
- slicing core composite filler assemblies from said unit substantially at right angles to the sheets;
- assembling a plurality of filler assemblies between overlying surface panel sheets;
- roll bonding said sheets and assemblies together to form a panel;
- and
- leaching the core alloy from the roll bonded structure.
4 more elements
In the manufacture of sandwich panels comprising panel sheets and parallel spacing ribs extending between said panel sheets and bonded thereto, the process including the steps of:
- making a stack of rib material sheets interleaved with core material sheets;
- roll bonding the rib sheets and core sheets together and reducing the thickness of the stack such that the spacing of the rib sheets in the stack corresponds substantially with the desired spacing of the ribs in the finished panel thereby forming a unit;
- cutting the unit into filler assemblies at right angles to the sheets of the unit, each assembly being at least as thick as the spacing of the panel sheets in the finished sandwich panel;
- positioning a plurality of filler assemblies in side by side relation between panel surface sheets;
- and
- bonding the panel sheets to the elements of the rib sheets in the filler assembly.
3 more elements
Dependencies are inferred from the claim text.