Reduction in Locking error of Bearing Slippers
Reduction in Locking error of Bearing Slippers
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This project, performed at ASML (May 2023- Aug. 2023) entailed the design of a test rig to accommodate bearing slippers and capacitive gauges to test, analyze, and post-process the results of locking errors generated in complex assemblies. This state-of-the-art test rig was meticulously designed using Siemens NX software, integrating the principles of Geometric Dimensioning and Tolerancing (GD&T). The mission of this project was to establish a new benchmark for evaluating bearing slippers, with a focus on enhancing efficiency and reducing locking errors..
An illustrated depiction of the methodology for recording locking error.
An illustrated depiction of the methodology for recording locking error.
I studied and analyzed different bearing slippers used to reduce locking errors in complex assemblies. Designed a test rig using Siemens NX and applied GD&T to conduct tests on these bearing slippers for benchmarking them as per efficiency and quantifying the reduction in locking error.
• Conducted FEA and DFM analyses on the test rig model before machining and prototyping.
• Performed various tests on bearing slippers upon this test rig using capacitive gauges to calculate locking error within 50 microns.
• Tabulated the test results to show that bearing slippers helped reduce locking error by 68% upon selecting the right screw locking sequence and preloads applied on these screws.
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