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    B1500HS硼鋼熱沖裁過程的相變和沖裁精度

    李輝平 侯弘歷 周衛魯 趙國群

    李輝平, 侯弘歷, 周衛魯, 趙國群. B1500HS硼鋼熱沖裁過程的相變和沖裁精度[J]. 工程科學學報, 2017, 39(12): 1851-1858. doi: 10.13374/j.issn2095-9389.2017.12.011
    引用本文: 李輝平, 侯弘歷, 周衛魯, 趙國群. B1500HS硼鋼熱沖裁過程的相變和沖裁精度[J]. 工程科學學報, 2017, 39(12): 1851-1858. doi: 10.13374/j.issn2095-9389.2017.12.011
    LI Hui-ping, HOU Hong-li, ZHOU Wei-lu, ZHAO Guo-qun. Phase transformation and blanking accuracy of boron steel B1500HS during hot blanking[J]. Chinese Journal of Engineering, 2017, 39(12): 1851-1858. doi: 10.13374/j.issn2095-9389.2017.12.011
    Citation: LI Hui-ping, HOU Hong-li, ZHOU Wei-lu, ZHAO Guo-qun. Phase transformation and blanking accuracy of boron steel B1500HS during hot blanking[J]. Chinese Journal of Engineering, 2017, 39(12): 1851-1858. doi: 10.13374/j.issn2095-9389.2017.12.011

    B1500HS硼鋼熱沖裁過程的相變和沖裁精度

    doi: 10.13374/j.issn2095-9389.2017.12.011
    基金項目: 

    國家自然科學基金資助項目(51575324);國家科技重大專項資助項目(2011ZX04014-031);山東省科技發展計劃資助項目(2014GGX03024)

    詳細信息
    • 中圖分類號: TG156.3;TG113.2

    Phase transformation and blanking accuracy of boron steel B1500HS during hot blanking

    • 摘要: 為了研究熱沖裁零件微觀組織及尺寸精度的變化規律,采用不同的沖裁溫度和模具間隙比對B1500HS鋼板進行了熱沖裁試驗.根據冷卻曲線,研究了沖裁溫度對硼鋼組織轉變和零件力學性能的影響;根據落料件的尺寸,分析了沖裁溫度和模具間隙比對尺寸精度的影響;通過觀察零件的斷口形貌,分析了沖裁溫度對斷口質量的影響.結果表明:當沖裁溫度一定時,落料件的尺寸隨著模具間隙比的減小而增大;當模具間隙比一定時,落料件的尺寸誤差隨著沖裁溫度的降低出現“正—負—正”的增長波動趨勢;當沖裁溫度為600~650℃或750~800℃時,落料件具有較高的沖裁精度;落料件的硬度隨著沖裁溫度的升高而增大,當沖裁溫度為650~800℃時,落料件的組織為馬氏體,硬度值HV約為550;沖裁斷面光亮帶的寬度隨著沖裁溫度升高而增大.

       

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    • 被引次數: 0
    出版歷程
    • 收稿日期:  2017-03-02

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