Metal working – Method of mechanical manufacture – With testing or indicating
Reexamination Certificate
2008-09-11
2011-12-27
Omgba, Essama (Department: 3726)
Metal working
Method of mechanical manufacture
With testing or indicating
C029S407050, C029S407010, C029S525010, C227S002000, C073S789000, C073S760000, C073S791000
Reexamination Certificate
active
08082647
ABSTRACT:
Force data is monitored by a strain gauge during a preparatory setup operation of an insertion process during which a sample fastener is installed into a host material by a fastener press. Mathematical algorithms are utilized to determine an optimal insertion force, while a predetermined insertion velocity is maintained throughout the installation process regardless of the force required. With the ram velocity held constant, the insertion force is measured during the installation process and compared to the elapsed time to obtain a force slope. A data point on the force slope which corresponds to the point at which the force slope abruptly increases is captured and recorded as the optimal insertion force. This optimal force is then used by the press for all fasteners/host-material installations of the sample type.
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Improving the Prediction of the Roll Separating Force in a Hot Steel Finishing Mill (Frayman et al.).
Gore & Associates, PLLC
Omgba Essama
PEM Management, Inc.
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