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US 11,529,790 B2Granted
Joint body of different materials and method for manufacturing the same
AssigneeLG Chem, Ltd.
InventorsJin Mi Jung, Yu Jin Jeong, Bu Gon Shin, Tae Hwan Roh, Sung Gon Kim, Jung Jin Han
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Abstract
The present specification relates to a joint body of different materials, and a method of manufacturing the same. The joint body includes a metal layer; and a resin layer provided on and in contact with one surface of the metal layer. The metal layer comprises two or more etching grooves and two or more burrs provided on a surface of the metal layer adjacent to the etching grooves.
Claims12
A joint body of different materials, comprising:
- a metal layer;
- and
- a resin layer provided on and in contact with one surface of the metal layer,
- wherein the metal layer comprises two or more etching grooves and two or more burrs provided on a surface of the metal layer adjacent to the etching grooves,
- wherein each of the two or more burrs form an acute angle with respect to the surface of the metal layer,
- wherein the resin layer is fixed to the metal layer by filling an interior of each of the two or more etching grooves, the surface of the metal layer, and a space between the two or more burrs with the resin layer,
- wherein a ratio of a depth of each of the two or more etching grooves to a width of an entrance of each of the two or more etching grooves is 3:1 to 14:1,
- wherein the width of the entrance of each of the two or more etching grooves is 10 μm or more and 25 μm or less,
- wherein the depth of each of the two or more etching grooves is 50 μm or more and 250 μm or less, and
- wherein a ratio of a width of a center of each of the two or more etching grooves to the width of the entrance of each of the two or more etching grooves is 1.3:1 to 3:1.
7 more elements
A method of manufacturing a joint body of different materials, the method comprising;
- etching a metal layer by irradiating a surface of the metal layer with a first laser to form an etched metal layer having two or more etching grooves and two or more burrs the surface of the metal layer;
- and
- forming a resin layer on one surface of the etched metal layer,
- wherein each of the two or more burrs form an acute angle with respect to the surface of the metal layer,
- wherein the resin layer is fixed to the metal layer by filling an interior of each of the two or more etching grooves, the surface of the metal layer, and a space between the two or more burrs with the resin layer, and
- wherein a ratio of a depth of each of the two or more etching grooves to a width of an entrance of each of the two or more etching grooves is 3:1 to 14:1,
- wherein the width of the entrance of each of the two or more etching grooves is 10 μm or more and 25 μm or less,
- wherein the depth of each of the two or more etching grooves is 50 μm or more and 250 μm or less, and
- wherein a ratio of a width of a center of each of the two or more etching grooves to the width of the entrance of each of the two or more etching grooves is 1.3:1 to 3:1.
6 more elements
Dependencies are inferred from the claim text.