Patent ID: 7781698

Claim:
A process for manufacturing a coiled insert of coated filaments, each filament comprising a ceramic fiber coated with a metal sheath, the process comprising: manufacturing a sheet of coated filaments by laser welding; and winding a sheet of coated filaments around a piece, wherein at the start of winding, a first metal shim is placed beneath the sheet and coiled such that the first metal shim provides an internal part of the coiled insert, wherein at the end of winding, a second metal shim is placed on the sheet and coiled such that the second metal shim provides an external part of the coiled insert, wherein a portion of an innermost layer of the coiled insert is sandwiched between a first end portion of the first metal shim and a second end portion of the first metal shim, and wherein a portion of an outermost layer of the coiled insert is sandwiched between a first end portion of the second metal shim and a second end portion of the second metal shim.