Pit Reuse Workstation Weld Positioning System demonstration test report.

摘要

We tested the ability of the Reuse Workstation Weld Positioning System to meet its performance requirements as outlined in a memorandum from Richard Schenz to Dave Shikany. A copy of that memo is attached for reference. We fabricated an artifact that was representative of a pit waist weld in its worst conceivable alignment. First, we mounted the artifact in a fixture that was a mock-up of the weld station in the weld box portion of the workstation. Then we mounted two linear variable displacement transducers (LVDTs) on the X, Y, Z stage to simulate the focus of the laser weld beam where they were used to ''teach'' the controller the weld path and, subsequently, to measure how accurately the control system could track the desired weld path.