公开(公告)号：US20200086609A1

公开(公告)日：2020-03-19

申请号：US16133457

申请日：2018-09-17

Applicant: AISIN TECHNICAL CENTER OF AMERICA, INC.

Inventor： Saida KHAN ,  Santosh SARANG ,  Ichiro HIRATSUKA

IPC: B32B15/085 ,  B32B15/20 ,  B32B27/32 ,  B32B27/18 ,  B32B37/10 ,  B32B37/04 ,  B32B38/00 ,  B32B1/08 ,  B32B7/12

Abstract: A method to prepare a composite laminate object containing an extrusion grade 7xxx Al substrate and a fiber-reinforced polypropylene layer adhesively laminated to the substrate; is provided. The process includes shaping and cutting an extruded 7xxx aluminum to a profile, assembling a layered arrangement of the 7xxx Al profile as substrate, an adhesive film and a fiber reinforced polypropylene preform, heating the layered arrangement to a temperature of 160-175° C. to melt the polypropylene and activate the adhesive film, applying pressure to at least a surface of the fiber reinforced polypropylene preform to mold the preform to the shape of the extruded 7xxxAl substrate and obtain a semi-finished laminate object, cooling the semi-finished laminate object to 90° C., optionally, cooling the semi-finished laminate object to room temperature for inventory storage; heat treating the semi-finished laminate object at 90° C. for 2 to 8 hours; and then heat treating the semi-finished laminate object at 130° C. to 150° C. for 8 to 16 hours; and cooling the heat treated object to obtain the composite laminate object.