Manufacturing method of vehicle tailgate inner panel
AssigneesHyundai Motor Company, Kia Motors Corporation, Seojin Industrial Co., Ltd.
InventorsYoun-Il Jung, Heung-Jun Oh, Sang-Il Lee, Young-Hyun Kim
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Abstract
Disclosed herein is a method of manufacturing an inner panel of a vehicle tailgate, which is formed in a bending plate shape and to which reinforcing members are coupled to improve rigidity, including: temporarily coupling a plurality of sub-blanks to a main blank by spot welding; forming the main blank into an inner panel and the plurality of sub-blanks into a plurality of reinforcing members, using a forming mold; and permanently coupling the plurality of reinforcing members to the inner panel.
Claims3
A method of manufacturing an inner panel of a vehicle tailgate, comprising:
- temporarily coupling a plurality of sub-blanks to a main blank by a temporary welding process;
- forming the main blank into an inner panel and the plurality of sub-blanks into a plurality of reinforcing members, using a forming mold;
- and
- permanently coupling the plurality of reinforcing members to the inner panel, using a cutting mold,
- wherein the permanently coupling the plurality of reinforcing members comprises:
- clinching the plurality of reinforcing members and the inner panel into a space between a fixing die having a groove and a clinching punch on a clinching core to push the plurality of reinforcing members into inner panel,
- wherein the fixing die is disposed on an upper mold plate of the cutting mold and the clinching core is disposed on a lower mold plate of the cutting mold so as to trim and clinch the inner panel simultaneously.
Dependencies are inferred from the claim text.