PRESS FORMING METHOD FOR COMPOSITE MATERIAL
First Claim
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.
1 Assignment
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Accused Products
Abstract
Provided is a press forming method for a composite material. A press forming method for a composite material including an upper metal member, a resin member, and a lower metal member, and including: producing the lower metal member having first and second coating films respectively bonded to upper and lower surfaces 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; 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.
0 Citations
6 Claims
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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:
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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 Dependent Claims (2, 3, 4, 5, 6)
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Specification