文章信息/Info

Title:

Research on Aluminum Alloy Materials and Application Technology for Automobile Lightweight

文章編號(hào):

1674-3962(2022)10-0786-10

作者:

劉貞山; 李英東; 趙經(jīng)緯; 傅壘; 李利; 余康才; 毛曉東; 趙丕植

（中鋁材料應(yīng)用研究院有限公司，北京 102209）

Author(s):

LIU Zhenshan;  LI Yingdong;  ZHAO Jingwei;  FU Lei;  LI Li;  YU Kangcai;  MAO Xiaodong;  ZHAO Pizhi

(Chinalco Materials Application Research Institute Co., Ltd., Beijing 102209， China)

關(guān)鍵詞:

覆蓋件外板用6XXX系鋁合金; 覆蓋件內(nèi)板用5XXX系鋁合金; 熱成形鋁合金汽車板; 屈服強(qiáng)度; 烘烤強(qiáng)化; 沖壓成形; 連接; 表面處理

Keywords:

6XXX outer panel sheet;  5XXX inner panel sheet; hot forming aluminum alloy sheet;  yield strength;  baking strengthening; stamping;  joining;  surface treatment

分類號(hào):

TG146.21

DOI:

10.7502/j.issn.1674-3962.202206011

文獻(xiàn)標(biāo)志碼:

A

摘要:

通過鋁合金的應(yīng)用實(shí)現(xiàn)汽車輕量化是節(jié)能減排的有效手段之一，國內(nèi)汽車公司長期依靠進(jìn)口鋁合金汽車板，從成本、效率方面影響了汽車輕量化的進(jìn)程，鋁合金汽車板的國產(chǎn)化及應(yīng)用技術(shù)的研究開發(fā)對推動(dòng)我國汽車、特別是新能源汽車的輕量化至關(guān)重要。總結(jié)了5XXX、6XXX和7XXX系鋁合金汽車板材及應(yīng)用技術(shù)的研究成果，重點(diǎn)圍繞中鋁材料應(yīng)用研究院開展的合金成分-工藝-金屬組織�不�本性能及應(yīng)用性能的關(guān)聯(lián)性研究進(jìn)行系統(tǒng)總結(jié)，包括：覆蓋件外板用6XXX系鋁合金板材的包邊性能與晶粒組織、漆刷線與織構(gòu)、烤漆強(qiáng)化效果與團(tuán)簇的關(guān)聯(lián)性；覆蓋件內(nèi)板用5XXX系鋁合金板材的屈服強(qiáng)度與晶粒尺寸的Hall-Petch關(guān)系、呂德斯帶與金屬組織的關(guān)系；結(jié)構(gòu)件用熱成形鋁合金板材及相關(guān)熱成形技術(shù)；鋁合金汽車板成形極限的預(yù)測與沖壓成形模擬仿真技術(shù)；自沖鉚連接過程模擬仿真技術(shù)；磷化、鋯薄膜化、硅烷化表面處理技術(shù)。希望為鋁合金汽車板的國產(chǎn)化及進(jìn)一步提升鋁合金汽車板的性能提供參考。

Abstract:

Vehicle lightweighting utilizing aluminum alloys is one of the effective means to achieve energy saving and emission reduction. For a long time, automotive companies at home rely on imported aluminum alloy automotive sheets, which affects the process of vehicle lightweighting due to high cost and low efficiency. The research and development of domestication and application technology of aluminum alloy for automotive body sheets is very important to promote the vehicle lightweighting, especially new energy vehicles. This review summarizes the research results of 5XXX, 6XXX, 7XXX series of aluminum alloy automotive body sheets and the related application technology, carried out in Chinalco Material Application Research Institute. The research focuses on the correlation among chemical composition, process, microstructure, basic properties and application properties： the correlations between the hemming performance and grain structure, between roping and texture, between baking strength and clusters in 6XXX outer panel sheet；the Hall-Petch relationship between yield strength and grain size, relationship between Lüdes band and microstructure in 5XXX inner panel sheet; aluminum alloy sheets and related hot forming technologies for hot stamped structural parts. For application technology, this review summarizes the prediction of the forming limit diagram and stamping simulation technology for aluminum alloy automotive body sheets, simulation technology for self-piercing riveting, surface treatment technologies including cleaning, passivation and phosphating, zirconium thin film, salinization. We wish that this review lay the foundation for the domestication and further performance improving of aluminum alloy automotive body sheets.