Design & Manufacturing
- Volume 6 Issue 1
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- Pages.39-44
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- 2012
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- 2800-0323(pISSN)
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- 2733-452X(eISSN)
A Study on Development of Hot Forged Component of Hot Tool Steel DH32
열간공구강 DH32 소재의 열간단조품 개발에 관한 연구
- Jang, Jin-Hyung (Kyungnam University) ;
- Kim, Hyun-Su (Mysco Co.Ltd.) ;
- Kim, Jong-Hyeon (Korea Polytechnic VII College) ;
- Kim, Hyun-Pil (Korea Polytechnic VII College) ;
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Kim, Young-Jo
(Kyungnam University)
- 장진형 (경남대학교 대학원) ;
- 김현수 ((주)마이스코) ;
- 김종현 (한국폴리텍VII대학 컴퓨터응용기계과) ;
- 김현필 (한국폴리텍VII대학 컴퓨터응용금형과) ;
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김용조
(경남대학교 기계자동화공학부)
- Received : 2012.01.11
- Accepted : 2012.05.18
- Published : 2012.06.29
Abstract
Hot tool steel, in general, has not been used as a material in hot forging. However such a hot tool steel is recently applied to forging materials by recent forging technology. DH32 is known as a kind of hot tool steels, which is developed for characteristics of excellent strength and toughness in high temperature. Feasibility of DH32 to hot forging material has been researched to develop the hot forging technology of a plunger used for a large-sized marine fuel pump. Hot compression experimental works were performed to investigate the hot strain characteristic of DH32 and with the experimental results FE simulations were also conducted for the design of forging processes and preform. It is found out through the hot compression experimental works that DH32 has a hot brittleness at more than