Metal working – Method of mechanical manufacture – Assembling or joining
Reexamination Certificate
2007-03-26
2011-12-20
Omgba, Essama (Department: 3726)
Metal working
Method of mechanical manufacture
Assembling or joining
C029S407010, C029S407050, C029S407090, C029S407100, C073S159000, C073S849000, C408S0010BD, C408S009000
Reexamination Certificate
active
08079130
ABSTRACT:
The invention relates to a method for assembling sheets by riveting, comprising a step for piercing a hole through the sheets, followed by a step for placing a rivet in the pierced hole, the step for piercing a hole being executed by supplying an advance speed instruction of a piercing tool as well as a rotation speed instruction of this tool. According to the invention, a previous step for determining information on the local stiffness of the sheets (Info_stiffness) is also carried out at the level of the hole to be pierced, the advance speed instruction and rotation speed instruction of the tool being a function of this information on the local stiffness of the sheets.Application most suited to the field of aircraft construction.
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Omgba Essama
Pearne & Gordon LLP
Sonaca S.A.
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