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1. (WO2018107002) KNURLING APPARATUS AND METHODS FOR ARCHITECTURAL ASSEMBLIES

Pub. No.:    WO/2018/107002    International Application No.:    PCT/US2017/065267
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Sat Dec 09 00:59:59 CET 2017
IPC: E06B 3/26
E06B 3/263
Applicants: ARCONIC INC.
Inventors: MARINACK, Martin, C.
CROWLEY, Mark
KUMAR, Sneh
CHILKO, Michael
HOOPER, Bill
BARBULESCU, Ion-horatiu
SERRANO, Deryck
Title: KNURLING APPARATUS AND METHODS FOR ARCHITECTURAL ASSEMBLIES
Abstract:
A composite architectural frame section with subcomponents that meet functional, strength and thermal isolation requirements is assembled using knurling and crimping operations as joining procedures. When properly designed the knurling and subcomponent geometries with proper crimping operations result in an optimal shearing strength between critical subcomponents, thus maximizing the structural performance aspect of the frame section. Various embodiments of this design address requirements for subcomponent features such as: hammer and anvil tips, orientation of knurled and crimped surfaces, design of the knurling wheel components, and the introduction of alternate surface topographies to additional regions of these contacting frame subcomponents. These embodiments serve to maximize the portion of available interface contact surfaces and their friction that can bear shearing forces and, thus, add to the overall shear strength of the frame section.