×

PRESS FORMING METHOD FOR COMPOSITE MATERIAL

  • US 20200136084A1
  • Filed: 03/08/2019
  • Published: 04/30/2020
  • Est. Priority Date: 10/29/2018
  • Status: Active Grant
First Claim
Patent Images

1. A press forming method for a composite material including an upper metal member, a resin member, and a lower metal member, the method comprising:

  • producing the lower metal member having a first coating film and a second coating film respectively bonded to an upper surface and a lower surface thereof;

    producing the composite material including the upper metal member, a first hot melt member, the resin member, a second hot melt member, and the lower metal member sequentially layered and bonded together;

    cutting an area spaced inward a predetermined distance from a lengthwise edge of the composite material by using a T-cutter, such that only the lower metal member remains;

    removing the upper metal member, the first hot melt member, the resin member, and the second hot melt member that are located outside the cut area; and

    folding the lower metal member by an angle of 180 degrees by using a hemming die such that side surfaces of the upper metal member and the resin member are prevented from being exposed to outside.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×