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Title:
METHOD FOR MANUFACTURING ALUMINUM BEARING INSERT FOR LOWER CRANK CASE OF ENGINE
Document Type and Number:
WIPO Patent Application WO/2014/065626
Kind Code:
A1
Abstract:
The present invention relates to a method for manufacturing a bearing insert for a lower crank case of an engine. The method of the present invention, comprises: a molten metal preparation step of melting an aluminum alloy composition so as to prepare molten metal; a preform preparation step of molding the prepared molten metal so as to prepare a preform corresponding to the shape and size of the bearing insert; a preform heating step of heating the preform at a preset temperature; a bearing insert preparation step of hot forging the heated preform so as to prepare the bearing insert; a trimming step of trimming and removing a flash that is protruded outwardly from the bearing insert that is prepared by the hot forging; and a scratch forming step of shot blasting the bearing inset so as to remove impurities from the surface of the bearing insert and form a fine groove-shaped scratch on the surface of the bearing insert, thus providing a stopper structure to the joint surface of the bearing insert which is to be inserted and joined to the lower crank case. The method of the present invention manufactures the bearing insert using the preform, thus simplifying a manufacturing process.

Inventors:
LEE, Won-Hwan (75-253, Dongbaek-dong Kiheung-gu,,Yongin-si, Gyeonggi-do 446-891, 446-891, KR)
HAN, Yo Sub (1502 Ho, 108 Dong Hansin Apt.,,Cheongryangri-dong,,Dongdaemoon-gu, Seoul 130-775, 130-775, KR)
JANG, Jung Hwan (602 Ho, 311 Dong Gyeongnam Apt.,Sangok-dong,,Bupyeong-gu, Incheon 403-771, 403-771, KR)
KIM, Sung Hoon (401 Ho, 105 Dong Woosung Apt.,Jisan-dong,,Pyeongtaek-si, Gyeonggi-do 459-753, 459-753, KR)
PARK, Hye Young (1205 Ho, 204 Dong Sinseongmisogium 2 danji,,Bokwun-ri, Songak-eup,,Danjin-si, Chungcheongnam-do 343-827, 343-827, KR)
Application Number:
KR2013/009568
Publication Date:
May 01, 2014
Filing Date:
October 25, 2013
Export Citation:
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Assignee:
INZI AMT CO., LTD (28-156, Bugok Industrial Complex 4 gil Songak-ub,,Dangjin-si, Chungcheongnam-do 343-827, 343-827, KR)
International Classes:
B21K1/26; B22D19/00; B22D21/04; F16C9/02
Foreign References:
KR20110061380A
KR20060021965A
KR20100028377A
JP2000297696A
Attorney, Agent or Firm:
KO, Kwang-Ok (3rd Floor, 52, Seochojungang-ro,Seocho-gu, Seoul 137-878, 137-878, KR)
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