Title:
METHOD FOR MANUFACTURING HELICAL CARRIER MOLDED PRODUCT FOR FULL-AUTOMATIC PARKING BRAKE SYSTEM BY USING COLD FORGING
Document Type and Number:
WIPO Patent Application WO/2016/190500
Kind Code:
A1
Abstract:
Provided is a method for manufacturing a helical carrier molded product for a full-automatic parking brake system by using cold forging, the helical carrier molded product manufactured through: a first blank manufacturing step (S110) of manufacturing a first cylindrical blank (B1); a forging preparation step (S120) of annealing the first blank (B1) and bonderizing the annealed blank with a coating agent included in phosphate; a first molded product manufacturing step (S130) of pressing the first blank (B1) by a forging mold, so as to manufacture a first molded product (S1) having a first gear-forming part (1) and a spline-forming part (3) formed to be thinner than the first gear-forming part (1) at one side of the first gear-forming part (1); and a step (S140) of manufacturing a final-molded product (S2), by using the first molded product (S1) and a first forging mold (100) composed of a first upper punch part (110) and a first lower die part (120), so as to mold a helical gear part (1a) by forming helical gear teeth on the first gear-forming part (1) and mold a spline shaft part (3a) by forming protrusions and recesses on the spline-forming part (3).
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Inventors:
KIM CHANG-DONG (KR)
Application Number:
PCT/KR2015/012491
Publication Date:
December 01, 2016
Filing Date:
November 19, 2015
Export Citation:
Assignee:
SERIM T&D CO LTD (KR)
International Classes:
B21K1/76; B21J5/02; B21J9/02
Foreign References:
| KR101478039B1 | 2015-01-02 | |||
| KR101137759B1 | 2012-04-24 | |||
| KR100304860B1 | 2001-11-22 | |||
| KR20010102623A | 2001-11-16 | |||
| KR20110119949A | 2011-11-03 |
Attorney, Agent or Firm:
JEONG, Kang-Won (Walpyengbuk-ro 95Seo-gu, Daejeon 302-280, KR)
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