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1. (WO2010074438) DIES FOR SHEAR DRAWING
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/074438 International Application No.: PCT/KR2009/007399
Publication Date: 01.07.2010 International Filing Date: 10.12.2009
IPC:
B21C 3/02 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
21
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
C
MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
3
Profiling tools for metal drawing; Combinations of dies and mandrels for metal drawing
02
Dies; Selection of material therefor; Cleaning thereof
Applicants:
주식회사 포스코 POSCO [KR/KR]; 경상북도 포항시 남구 괴동동 1번지 1 Koedong-dong Nam-gu Pohang, Kyungsangbook-do 790-300, KR (AllExceptUS)
이기호 RHEE, Ki-Ho [KR/KR]; KR (UsOnly)
손일헌 SON, Il-Heon [KR/KR]; KR (UsOnly)
황중기 HWANG, Joong-Ki [KR/KR]; KR (UsOnly)
이덕락 LEE, Duk-Lak [KR/KR]; KR (UsOnly)
Inventors:
이기호 RHEE, Ki-Ho; KR
손일헌 SON, Il-Heon; KR
황중기 HWANG, Joong-Ki; KR
이덕락 LEE, Duk-Lak; KR
Agent:
특허법인 씨엔에스·로고스 C&S LOGOS PATENT AND LAW OFFICE; 서울특별시 서초구 서초동 1451-34 서초평화빌딩 13층 13th Floor, Seocho-Pyunghwa Building 1451-34 Seocho-dong, Seocho-gu Seoul 137-070, KR
Priority Data:
10-2008-013487226.12.2008KR
Title (EN) DIES FOR SHEAR DRAWING
(FR) FILIÈRES POUR ÉTIRAGE AVEC CISAILLEMENT
(KO) 전단 신선용 다이스
Abstract:
(EN) The present invention is aimed at providing dies for shear drawing, which are capable of continuous drawing and shear deformation at the same time. The invention relates to the dies for shear drawing which comprises a material processing channel where materials are sheared and drawn while passing therethrough, wherein the processing channel comprises an inlet path located in the front and an outlet path located in the rear in consideration of the moving direction of the materials: the inlet and outlet paths are connected to each other for the axes of both paths to cross each other at a certain angle; and the processing channel includes a cross-section decreasing area where the cross-section of the outlet path decreases more than the cross-section of the inlet path to allow the materials to be discharged from the exit of the outlet path filled with the materials. The invention enables continuous shear drawing, wherein the dies are easily filled with the materials during shear drawing, thereby obtaining a constant aspect ratio of the cross-section of the materials over the whole length thereof after shear drawing.
(FR) La présente invention concerne des filières pour étirage avec cisaillement, permettant un étirage continu en même temps qu'un cisaillement. L'invention concerne ainsi des filières pour étirage avec cisaillement comprenant un canal de traitement des matières dans laquelle les matières subissent un cisaillement et un étirement pendant qu'elles traversent ce canal. À cet effet, le canal de traitement comprend un chemin d'entrée situé à l'avant et un chemin de sortie situé à l'arrière par rapport au sens de déplacement des matières: les chemins d'entrée et de sortie sont connectés l'un à l'autre de façon que les axes des deux chemins se croisent selon un certain angle. Par ailleurs, le canal de traitement présente une superficie décroissante de la surface en coupe, alors que la section en coupe du chemin de sortie diminue plus que la section en coupe du chemin d'entrée pour permettre aux matières de se décharger à partir de la sortie du chemin de sortie rempli des matières. L'invention permet ainsi un étirage avec cisaillement en continu car les filières se remplissent facilement des matières pendant l'étirage avec cisaillement, ce qui donne un rapport d'aspect constant de la section en coupe des matières sur toute sa longueur après étirage avec cisaillement.
(KO) 본 발명은 연속적인 신선과 동시에 전단 변형이 가능한 전단 신선용 다이스를 제공하기 위한 것이다. 본 발명은 소재가 통과하면서 전단 신선 가공되는 소재 가공통로를 포함하는 전단 신선용 다이스로서, 상기 가공통로는 소재가 이동하는 방향으로 보아 전방에 위치되는 입측통로 및 후방에 위치되는 출측통로로 이루어지고, 상기 입측통로와 출측통로는 이들 통로의 중심축이 각을 갖고 교차되도록 결합되고, 그리고 상기 가공통로는 소재가 적어도 출측통로의 출구 부분에서 채워져 추출되도록 출측통로의 출측단면적을 입측통로의 입측단면적보다 감소시키는 단면 감소 구간을 포함하는 것을 특징으로 하는 전단 신선용 다이스를 제공한다. 본 발명에 의하면 연속적인 전단변형이 가능하며, 전단 신선 가공시 다이스에 소재의 채워짐이 우수하여 전단 신선 가공 후 소재 단면의 장단축비(Aspect ratio)가 소재의 전 길이에 걸쳐 거의 일정한 치수를 얻을 수 있다.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: Korean (KO)
Filing Language: Korean (KO)
Also published as:
EP2380672US20110247388CN102264485