In this thesis we have investigated influence of depth of interlocking clips and stamping depth on shrinkage and strain of rotor packages made with progressive die.
We put pressure on rotor packages, measured the shrinkage of packages and then observed, how packages expand in few days. When expanding stopped, we imprinted axles in packages and observed how much rotors expand. We have analysed results with regression analysis.
We came to a conclusion that shrinkages of rotor packages under pressure are very different among each other in deppendence to input parameters. On the other hand strains after the expansion do not vary greatly among each other. Because of that, it was hard to conclude which input parameters really have large influence on strains of rotor packages.
We also came to conclusion that rotor packages are shorter after the axle imprinting. Also observed input parameters have neglegible influence on strains of rotor packages.
We came to conclusion that depth of interlocking staples we observed do not have influence on strain of rotor package.
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