NIOBIUM BASED SUPERCONDUCTING RADIO FREQUENCY(SCRF) CAVITIES COMPRISING NIOBIUM COMPONENTS JOINED BY LASER WELDING, METHOD AND APPARATUS FOR MANUFACTURING SUCH CAVITIES

摘要

Niobium or its alloy based Superconducting Radio Frequency (SCRF) Cavities involving at least one laser beam welded components in the SCRF cavity welded from inside surface of the wall of cavity directed to achieving more than half the thickness to full depth penetration with minimum HAZ, minimizing distortion and shrinkage. The method ensures improved weld quality and surface finish substantially free of any weld defects. Also disclosed is the welding nozzle system and welding rigs adapted to facilitate such laser welding of the Niobium or its alloy based Superconducting Radio Frequency (SCRF) Cavities. The invention is thus directed to enhancing productivity, ensuring consistent quality and reliability, enhanced weld penetration with minimum HAZ, smooth finish of weld joints at possible reduced costs.

主权项

1. Niobium or it's alloys based superconducting radio frequency (SCRF) cavities, comprising of at least one component made of Niobium or it's alloys which are joined by laser welding from inside surface of the wall of the cavity with depth of penetration of welding ranging from greater than half the thickness to full depth of the material being welded.