Composite molded article
AssigneesDaicel Polymer Ltd., Daicel Corporation
InventorsDaiji Ikeda, Yoshihiro Asami
Life of this patent
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Abstract
A composite molded article contains a metal molded article and a resin molded article, which are bonded to each other, in which the metal molded article has a roughened bonding surface, a surface layer portion of the metal molded article including the roughened bonding surface has: open holes containing: a stem hole that is formed in a thickness direction and has an opening on the side of the bonding surface, and a branch hole that is formed from an inner wall of the stem hole in a different direction from the stem hole, and the composite molded article is bonded in such a state that the resin permeates into the open holes formed on the bonding surface of the metal molded article.
Claims8
A monolithic metal molded article with a roughened surface,
- wherein an integral surface layer portion of the monolithic metal molded article includes the roughened surface and comprises:
- open holes containing stem holes and branch holes, the stem holes being formed in a thickness direction and having openings on the side of the surface, and the branch holes being formed from inner walls of the stem holes in a direction different from the stem holes, and
- internal spaces formed in a thickness direction, the internal spaces having no openings on the side of the surface,
- the surface layer portion is a portion extending from the surface to the depth of the open holes formed by roughening and further comprises
- tunnel connecting channels that connect the open holes and the internal spaces and tunnel connecting channels that connect the open holes with each other.
Dependencies are inferred from the claim text.