Abstract
Micro gears are particularly complex to manufacture in many respects, as their deviations are relatively high concerning their component size. In addition, tolerance specifications of common gear standards are currently not defined for small gear modules. To make a quantitative statement about the rolling behavior of a micro gear, the single flank rolling test is considered, since this method can provide information about the functional behavior of a gear. This novel approach investigates a single flank rolling test facility for micro spur gears specifically developed for this application and evaluates measurement uncertainties of single flank rolling deviation parameters. After a detailed description of the test facility, a task-specific measurement uncertainty budget is developed based on the experimental structure of the measuring instrument. Intensive experiments revealed expanded uncertainties of less than 1.5 µm. In addition, a process suitability analysis of the measurement system was carried out, which was proven for all investigated gear deviation parameters by extrapolated standard tolerances. This demonstrates that single flank rolling tests on micro gears with low measurement uncertainties are technically possible and forms a basis for further investigations in quantifying uncertainties of micro test facilities.
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More From: CIRP Journal of Manufacturing Science and Technology
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