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Die System for Avoiding Thickness Reduction along the Bent Corner in Warm Plate Forging of an Axle Housing
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액슬하우징의 온간 후판단조에서 굽힘 변형된 모서리에서 발생하는 두께 감소 방지를 위하여 고안된 금형 시스템

논문 기본 정보

Type
Academic journal
Author
J. S. Kim (한국폴리텍7대학 창원캠퍼스) K. S. Kim (지성정밀) S. H. Shim (경상대학교) J. G. Eom (경상대) M. S. Joun (경상대학교)
Journal
The Korean Society for Technology of Plasticity and materials processing (KSTP) Transactions of Materials Processing Vol.19 No.8 KCI Accredited Journals
Published
2010.12
Pages
447 - 451 (5page)

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Die System for Avoiding Thickness Reduction along the Bent Corner in Warm Plate Forging of an Axle Housing
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Abstract· Keywords

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In this paper, a useful die system for warm plate forging of a large axle housing of heavy-duty trucks is presented. A die system composed of material flow guide pin as well as upper die and lower die is proposed to reduce the inherent thickness reduction along the bent corner of the product which deteriorates structural strength and fatigue life in its service. The role of the pin assembled in the upper die is to prevent formation of sharp corner in early forming stage and to supply material in the lower die cavity sufficient enough to thicken the bent corner at the final stroke. The mechanism of the die system is given and its effect on corner thickness of the product is revealed by two-dimensional finite element analysis under plain strain assumption. Three-dimensional finite element solutions are also given to verify validity of the two dimensional approach and to show the mechanics of the die system in detail. The die system has been successfully applied to manufacturing the axle housing of heavy-duty trucks.
#Die System #Axle Housing #Plate Forging Process #Thickness Reduction #Warming Forming #Finite Element Analysis

Contents

Abstract
1. 서론
2. 문제의 설명 및 고안된 금형 시스템
3. 결론
참고문헌

References (7)

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1. [학술지(정기간행물)] - K. Mori / 2009 / New stamping processes of high strength steel sheets / Journal of the JSTP 50 : 3 ~ 8 google schola 2. [학술지(정기간행물)] - D. M. Kang / / A study on the formability of magnesium alloy sheet in warm deep drawing / The Korean Society of Manufacturing Process Engineers : 213 ~ 216 google schola 3. [학술지(정기간행물)] - Korea Machine Tool Manufacturers’ Associ / 2005 / The newest manufacturing technology and equipment of Automobile parts / Korea Machine Tool Manufacturers’ Association 157 : 33 ~ 36 google schola 4. [학술대회논문] - M. C. Lee / 2010 / Rigid-plastic finite element analysis of a cold plate forging process using tetrahedral elements / Kor. Soc. Tech. Plast. Conf. : 244 ~ 247 dbpia 5. [인터넷자원] - / / http://www.afdex.com google schola

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