Proceedings of the KWS Conference (대한용접접합학회:학술대회논문집)
- 2009.11a
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- Pages.40-40
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- 2009
Explosion Bulge Test of 800 MPa Grade Pre-Heat Free Welding Consumables
800 MPa급 무예열 용접재료의 폭파변형시험
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Park, Tae-Won
(Agency for Defense Development) ;
-
Song, Young-Buem
(Agency for Defense Development) ;
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Kim, Jin-Young
(Agency for Defense Development) ;
- Park, Chul-Kyu (KISWEL) ;
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Kim, Hee-Jin
(Korea Institute of Industrial Technology)
-
박태원
(국방과학연구소 4기술연구본부) ;
-
송영범
(국방과학연구소 4기술연구본부) ;
-
김진영
(국방과학연구소 4기술연구본부) ;
- 박철규 (고려용접봉 기술연구소) ;
-
김희진
(한국생산기술연구원)
- Published : 2009.11.26
Abstract
The Cu-bearing PFS-700 steel which has yield strength over 700 MPa was developed to replace the existing submarine structural material, HY-100. PFS-700 steel has good combination of mechanical properties and superior weldability which can be welded without pre-heating before welding. Application PFS-700 steel to submarine or battle ship will give a great reduction of cost by removing or lowing pre-heating. To develop pre-heat free welding consumables that matches and take advantage of PFS-700 steel, new welding consumables have been designed for the GMAW, SAW processes and explosion bulge test(EBT) were conducted to see the reliability of welded structure. All welding was conducted without pre-heating before welding, the inter-pass temperatures were below