Curtis W Hayes

US Patent:

20180148194, May 31, 2018

Filed:

Nov 29, 2016

Appl. No.:

15/364208

Inventors:

Donald Brian Peterson - Mill Creek WA, US
Curtis Leon Hayes - Kirkland WA, US
Paul Michael Haworth - Mill Creek WA, US
Tyler James Kumley - Lake Stevens WA, US

International Classification:

B64F 5/10
B21J 15/04
B21J 15/14
B64C 1/12
C23C 14/06
C23C 14/34
C23C 14/22
C23C 14/24
C23C 16/27

Abstract:

Systems and methods are provided for installing fasteners. One exemplary embodiment is a method that includes inserting a fastener into a hole, and gripping ends of the fastener via dies. At least one of the dies includes a permanent coating having a static friction coefficient of less than 0.2 at a surface contacting the fastener. The method further includes plastically deforming the fastener via force from the dies, thereby expanding the fastener into interference with the hole along a length of the fastener such that an amount of interference between the fastener and the hole along the length of the fastener is greater than one and a half thousandths of an inch and less than twenty thousandths of an inch.