Title:
BUMPER LOWER STIFFENER WITH IMPROVED PERFORMANCE USING ULTRA HIGH STRENGTH STEEL PIPE AND MANUFACTURING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2011/102601
Kind Code:
A2
Abstract:
The present invention relates to a bumper lower stiffener formed at the lower portion of the front bumper of a vehicle and a manufacturing method thereof. More specifically, the present invention relates to a bumper lower stiffener manufactured using a steel pipe formed by hot pressing and a manufacturing method thereof. The present invention provides a method for manufacturing the horizontal member of the bumper lower stiffener, which includes a cutting step of cutting a steel pipe added with quenching elements at a predetermined length; a heat treatment step of heating the cut steel pipe at a molding temperature; a hot pressing step of hot-pressing the heated steel pipe with press molds into the shape of the horizontal member having plane surface sections at the both sides thereof; and a cooling step of rapidly cooling the formed horizontal member in the state that the press molds are closed.
Inventors:
KIM, Hyo-Sub (Sungwon Santevill Apt. #, Yeompo-dong Buk-gu, Ulsan 683-715, 683-715, KR)
김효섭 (울산광역시 북구 염포동 성원상떼빌아파트 108동 1102호, 683-715 Ulsan, 683-715, KR)
SUNG, Kyung-Jin (Sungwon Santevill Apt. #101-102, Yeompo-dong Buk-gu, Ulsan 683-715, 683-715, KR)
성경진 (울산광역시 북구 염포동 성원상떼빌아파트 101동 102호, 683-715 Ulsan, 683-715, KR)
김효섭 (울산광역시 북구 염포동 성원상떼빌아파트 108동 1102호, 683-715 Ulsan, 683-715, KR)
SUNG, Kyung-Jin (Sungwon Santevill Apt. #101-102, Yeompo-dong Buk-gu, Ulsan 683-715, 683-715, KR)
성경진 (울산광역시 북구 염포동 성원상떼빌아파트 101동 102호, 683-715 Ulsan, 683-715, KR)
Application Number:
KR2011/000058
Publication Date:
August 25, 2011
Filing Date:
January 06, 2011
Export Citation:
Assignee:
HYUNDAI HYSCO (265 Yeompo-dong, Buk-gu, Ulsan 683-711, 683-711, KR)
현대하이스코 주식회사 (울산광역시 북구 염포동 265번지, 683-711 Ulsan, 683-711, KR)
KIM, Hyo-Sub (Sungwon Santevill Apt. #, Yeompo-dong Buk-gu, Ulsan 683-715, 683-715, KR)
김효섭 (울산광역시 북구 염포동 성원상떼빌아파트 108동 1102호, 683-715 Ulsan, 683-715, KR)
SUNG, Kyung-Jin (Sungwon Santevill Apt. #101-102, Yeompo-dong Buk-gu, Ulsan 683-715, 683-715, KR)
현대하이스코 주식회사 (울산광역시 북구 염포동 265번지, 683-711 Ulsan, 683-711, KR)
KIM, Hyo-Sub (Sungwon Santevill Apt. #, Yeompo-dong Buk-gu, Ulsan 683-715, 683-715, KR)
김효섭 (울산광역시 북구 염포동 성원상떼빌아파트 108동 1102호, 683-715 Ulsan, 683-715, KR)
SUNG, Kyung-Jin (Sungwon Santevill Apt. #101-102, Yeompo-dong Buk-gu, Ulsan 683-715, 683-715, KR)
International Classes:
B60R19/24; B60R19/18
Attorney, Agent or Firm:
DAE-A INTERNATIONAL IP & LAW FIRM (3F Hanyang Bldg, 830-71 Yeoksam-dongGangnam-gu, Seoul 135-936, 135-936, KR)
Claims:
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