Modified rotating reusable preform
AssigneeThe Babcock & Wilcox Company
InventorsGregory D. Malone, Michael D. McAninch, Patrick M. Ryan
Life of this patent
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Abstract
An apparatus for building an axially symmetrical workpiece of desired geometry by deposit welding which uses a welding head 18 for depositing molten weld material 14 and a rotatable, reusable preform 10 which translates with the welding head 18. The reusable preform 10 is provided with means for varying its shape 22 to minimize the weight of the preform 10. The rotatable, reusable preform 10 forms, supports and cools the deposited molten weld material puddle 14 while the weld material is solidifying thereby eliminating the need for a conventional consumable preform.
Claims15
An apparatus for building a workpiece by deposit welding, comprising:
- a welding head for depositing molten weld material;
- a rotatable, reusable preform for forming, supporting, and cooling the molten weld material deposited directly on the surface thereof;
- means for varying the shape of rotatable, reusable preform;
- and
- means for moving the workpiece which continuously provides a new region of said rotatable, reusable preform surface underneath said welding head.
Dependencies are inferred from the claim text.