KR950018566A - High Formability High Strength Aluminum-Magnesium-Based Alloy and Manufacturing Method Thereof - Google Patents

High Formability High Strength Aluminum-Magnesium-Based Alloy and Manufacturing Method Thereof Download PDF

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KR950018566A
KR950018566A KR1019930029342A KR930029342A KR950018566A KR 950018566 A KR950018566 A KR 950018566A KR 1019930029342 A KR1019930029342 A KR 1019930029342A KR 930029342 A KR930029342 A KR 930029342A KR 950018566 A KR950018566 A KR 950018566A
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strength
aluminum alloy
strength aluminum
manufacturing
alloy
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KR1019930029342A
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KR960007633B1 (en
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강석봉
임차용
김형욱
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서상기
재단법인 한국기계연구원
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/06—Alloys based on aluminium with magnesium as the next major constituent

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Metal Rolling (AREA)

Abstract

본 발명은 자동차 차체용 고성형성 고강도 알루미늄 합금 및 합금판을 제조하는 방법에 관한 것으로 특히 Al-Mg계 합금 및 이의 제조방법에 관한 것이다.The present invention relates to a method for manufacturing a highly formed high strength aluminum alloy and alloy plate for an automobile body, and more particularly to an Al-Mg-based alloy and a method for manufacturing the same.

본 발명은 중량%로 Mg 5.5~10.5% 및 Mn 0.01~1.0%, Cr 0.01~0.3%, Be 0.001~0.1%중에서 선택되는 1 또는 2종을 함유하고 나머지 Al으로 조성되는 자동차 차체용 고성형성 고강도 알루미늄 합금 및 Al 합금의 용탕을 통상의 방법으로 용해 및 주조하여 얻은 잉고트 또는 슬라브를 440℃~600℃에서 8~24시간 균질화 처리를 하고 열간 및 냉간압연을 거쳐 소정의 두께를 갖는 판재를 만든 후 350℃~550℃의 온도범위로 급속가열하여 일정기간 유지후 상온으로 급속냉각하여 용체화 처리를 행하고 자연시효시키는 것을 특징으로 한다.The present invention is a high-strength high-strength form for automobile bodies containing 1 or 2 selected from Mg 5.5-10.5% and Mn 0.01-1.0%, Cr 0.01-0.3%, Be 0.001-0.1% by weight and composed of the remaining Al. Ingot or slab obtained by dissolving and casting molten aluminum alloy and Al alloy in the usual way is subjected to homogenization treatment at 440 ℃ ~ 600 ℃ for 8 ~ 24 hours, and then made hot plate and hot rolled sheet to have a predetermined thickness. Rapid heating in the temperature range of 350 ℃ ~ 550 ℃ characterized in that the solution is rapidly cooled to room temperature after a certain period of time to perform a solution treatment and natural aging.

Description

고성형성 고강도 알루미늄-마그네슘계 합금 및 그 제조방법High Formability High Strength Aluminum-Magnesium-Based Alloy and Manufacturing Method Thereof

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 500℃에서 120초간 열처리한 후의 Al-Mg 합금의 인장시험곡선.1 is a tensile test curve of the Al-Mg alloy after heat treatment at 500 ℃ for 120 seconds.

제2도는 여러 열처리 조건에서 열처리한 후의 Al-Mg-Ti-Zr 합금의 인장시험곡선.2 is a tensile test curve of an Al-Mg-Ti-Zr alloy after heat treatment under various heat treatment conditions.

제3도는 Al-Mg 및 Al-Mg-Ti-Zr 합금에서 Mg 함량에 따른 가공경화지수의 변화.3 shows the change of work hardening index according to Mg content in Al-Mg and Al-Mg-Ti-Zr alloys.

제4도는 500℃에서 120초간 열처리한 경우 Mg 함량에 따른 인장강도, 항복강도 및 연신율의 변화.4 is a change in tensile strength, yield strength and elongation according to Mg content when heat-treated at 500 ℃ for 120 seconds.

제5도는 500℃에서 120초간 열처리한 Al-Mg 합금의 광학 현미경 조직.5 is an optical microscope structure of Al-Mg alloy heat-treated at 500 ℃ for 120 seconds.

제6도는 Al-7.19Mg 합금에서 열처리 조건에 따른 광학 현미경 조직.6 is a light microstructure according to the heat treatment conditions in Al-7.19Mg alloy.

Claims (5)

중량%로 Mg 5.5~10.5% 및 Mn 0.01~1.0%, Cr 0.01~0.3%, Be 0.001~0.1%중에서 선택되는 1 또는 2종을 함유하고 나머지 Al으로 조성되는 자동차 차체용 고성형성 고강도 알루미늄 합금.High-strength, high strength aluminum alloy for automobile body containing 1 or 2 selected from Mg 5.5-10.5%, Mn 0.01-1.0%, Cr 0.01-0.3%, Be 0.001-0.1% by weight and composed of the remaining Al. 첨구범위 제1항에 있어서, 중량%로 Ti 0.01%~0.3%, Zr 0.01%~0.3%중에서 선택되는 1종 또는 2종의 성분을 더 포함하는 조성으로 구성되는 고성형 고강도 알루미늄 합금.The high-strength high strength aluminum alloy according to claim 1, further comprising one or two components selected from 0.01% to 0.3% of Ti and 0.01% to 0.3% of Zr by weight. 중량%로 Mg 5.5~10.5% 및 Cu 0.01~1.0%, Zn 0.01~1.0%중에서 선택되는 1 또는 2종을 함유하고 나머지 Al으로 조성되는 자동차 차체용 고성형 고강도 알루미늄 합금.A high-strength high-strength aluminum alloy for an automobile body containing 1 or 2 selected from Mg 5.5 to 10.5% by weight, 0.01 to 1.0% Cu and 0.01 to 1.0% Zn, and composed of the remaining Al. 청구범위 제3항에 있어서, 중량%로 Ti 0.01%~0.3%, Zr 0.01%~0.3%중에서 선택되는 1종 또는 2종의 성분을 더 포함하는 조성으로 구성되는 고성형 고강도 알루미늄 합금.The high-strength high strength aluminum alloy according to claim 3, further comprising one or two components selected from 0.01% to 0.3% of Ti and 0.01% to 0.3% of Zr by weight. Al합금의 용탕을 통상의 방법으로 용해 및 주조하여 얻은 잉고트 또는 슬라브를 440℃~600℃에서 8~24시간 균질화 처리를 하고 열간 및 냉간압연을 거쳐 소정의 두께를 갖는 판재를 만든 후 350℃~550℃의 온도범위로 급속가열하여 일정기간 유지후 상온으로 급속냉간하여 용체화 처리를 행하고 자연시효시키는 것을 특징으로 하는 자동차 차체용 고성형성 고강도 알루미늄 합금판의 제조방법.Ingot or slab obtained by dissolving and casting molten Al alloy in a conventional manner is subjected to homogenization treatment at 440 ° C to 600 ° C for 8 to 24 hours, and made of a plate having a predetermined thickness through hot and cold rolling. Method of producing a high-strength high strength aluminum alloy plate for a vehicle body characterized in that it is rapidly heated to a temperature range of 550 ℃, and then rapidly cooled to room temperature and then subjected to solution treatment and natural aging. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930029342A 1993-12-23 1993-12-23 Al-mg alloy & the preparation KR960007633B1 (en)

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KR1019930029342A KR960007633B1 (en) 1993-12-23 1993-12-23 Al-mg alloy & the preparation

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100493666B1 (en) * 1998-12-31 2005-08-31 한국타이어 주식회사 High Strength Aluminum Alloy Material for Automobile Wheels
KR100512296B1 (en) * 2000-04-07 2005-09-05 제너럴 모터즈 코오포레이션 Quick plastic forming of aluminum alloy sheet metal

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5342201B2 (en) * 2008-09-26 2013-11-13 株式会社神戸製鋼所 Aluminum alloy plate with excellent formability

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100493666B1 (en) * 1998-12-31 2005-08-31 한국타이어 주식회사 High Strength Aluminum Alloy Material for Automobile Wheels
KR100512296B1 (en) * 2000-04-07 2005-09-05 제너럴 모터즈 코오포레이션 Quick plastic forming of aluminum alloy sheet metal

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