Patent ID: 9145277
Filing Date: 2015-09-29
Classification: B29C,B29D,B65H,Y02T

Abstract:
1. A method of wrapping a mandrel with a composite material, the method comprising: securing the mandrel and a first coupling with a winding jig such that the first coupling is located adjacent to a first end of the mandrel while sharing a central axis with the mandrel, the mandrel and the first coupling each having a same hexagonal shape and hexagonal circumference, wherein the mandrel has a hollow interior extending along a length of the mandrel to provide a fluid passage for heating of the mandrel during a curing process; orienting the composite material at a wrap angle to the mandrel and the first coupling and depositing the composite material around the hexagonal circumference of the mandrel and the first coupling starting from the first coupling, such that the composite material completely covers the hexagonal circumference of the first end of the mandrel.