孙颖,贺连芳,高羽丰,孙然,李志超,李辉平

• 1:山东科技大学材料科学与工程学院

摘要(Abstract)：

采用光学显微镜、扫描电镜和显微硬度计等研究不同冲裁温度(600～800℃)对BR1500HS硼钢齿轮形落料件的微观组织、光亮带宽度、尺寸精度和最大冲裁力的影响。结果表明：冲裁温度为600℃时落料件的室温组织为铁素体、珠光体和贝氏体的混合组织；冲裁温度为650℃时室温组织为铁素体、贝氏体和少量马氏体的混合组织；冲裁温度为700～800℃时室温组织为完全马氏体组织，硬度较高，稳定在550 HV0.1左右。综合考虑落料件的尺寸精度、断面质量、最大冲裁力以及微观组织，齿轮形落料件的最优热冲裁温度为800℃,此时落料件的显微组织为完全马氏体组织，耐磨性较好，强度与硬度较高，落料件光亮带宽度最大，断面质量最好，最大冲裁力最小，可满足精密齿轮零件的技术要求。

关键词(KeyWords)： BR1500HS硼钢;冲裁温度;微观组织;冲裁精度

Abstract:

Keywords:

基金项目(Foundation): 山东省自然科学基金(ZR2021ME129)

作者(Author): 孙颖,贺连芳,高羽丰,孙然,李志超,李辉平

DOI: 10.13289/j.issn.1009-6264.2023-0056

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