加热温度对AZ31镁合金薄板压力连接接头性能的影响

石柏军; 李航; 彭松; 廖树辉

加热温度对AZ31镁合金薄板压力连接接头性能的影响

华南理工大学机械与汽车工程学院, 广州 510640

基金项目:

广东省部产学研结合项目(2009B090300070)

详细信息

作者简介:
石柏军(1966-), 男, 湖北大冶人, 副教授, 博士。

中图分类号: TG386
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- 收稿日期: 2013-10-10
- 刊出日期: 2013-12-19

Effect of Heating Temperature on Clinching Joint of AZ31 Magnesium Sheets

摘要

摘要: 采用凹模加热法对1 mm厚的AZ31镁合金薄板进行加热, 加热温度区间为150～375 ℃, 然后进行压力连接试验, 并采用剪切和拉伸剥离两种试验方法对各组接头的连接强度进行测试。结果表明: 适合AZ31镁合金压力连接的凹模温度区间是250～350 ℃, 温度过低接头会出现颈部断裂, 温度过高会产生底部穿孔现象, 最佳凹模温度在300 ℃左右; 在300 ℃条件下压接AZ31镁合金, 其接头十字剥离最大承载力为600 N, 而剪切最大承载力达到了1 600 N, 连接强度较高。
- 压力连接 /
- AZ31镁合金 /
- 凹模加热法 /
- 强度
Abstract: Clinching tests were carried out after AZ31 magnesium alloy sheets in thickness of 1 mm were heated by female die heating at temperature range of 150-375 ℃. The joint strength was tested using shear test and tensile test. The results show that the suitable range of die temperature was 250 ℃ to 350 ℃. If the temperature was too low, fracture in the neck would happen. If the temperature was too high, hole punching in the bottom of joints would be found. And the best die temperature was around 300 ℃ at which the joint strength was the highest. The normal bearing force of the joint clinched at 300 ℃ was 600 N and the shear bearing force was 1 600 N.
- clinching /
- AZ31 magnesium alloy /
- female die heating /
- strength

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参考文献(13)

[1]	陈振华.变形镁合金[M].北京: 化学工业出版社, 2005.
[2]	SABERI S, ENZINGER N, VALLANT R, et al. Influence of plastic anisotropy on the mechanical behavior of clinched joint of different coated thin steel sheets[J].International Journal of Material Forming, 2008, 1(1): 273-276.
[3]	AVEDESIAN M M, BAKER H. Magnesium And Magnesium Alloys[M].United States: ASM International, 1999: 314.
[4]	WAGENER H W, LEHNERT F. Deep drawing of magnesium sheet metal at room temperature[J].Manufacturing Processes Sheet Metal Processing, 2004(14): 616-620.
[5]	DOEGE E, DRDER K. Sheet metal forming of magnesium wrought alloys-formability and process technology[J].Journal of Materials Processing Technology, 2001, 115(1): 14-19.
[6]	张凯锋, 尹德良, 吴德忠, 等.AZ31镁合金板的热拉深性能[J].中国有色金属学报, 2003, 13(6): 1506-1509.
[7]	TAKUDA H, MORISHITA T, KINOSHITA T, et al. Modelling of formula for flow stress of a magnesium alloy AZ31 sheet at elevated temperatures[J].Journal of Materials Processing Technology, 2005, 164/165: 1258-1262.
[8]	童伟, 石柏军, 庄文辉.新型汽车钣金件压力连接方法及设备[J].机床与液压, 2008, 36(7): 93-95.
[9]	石柏军, 何灿荣, 何涛. 基于机械变形的钣金件连接过程实时监控方法的研究与应用[J].机床与液压, 2009, 37(5): 35-37.
[10]	石柏军, 田恒宇, 刘松林.基于窗口技术的压接质量在线监控方法的研究[J].机床与液压, 2010(9): 151-154.
[11]	VARIS J P, LEPIST J. A simple testing-based procedure and simulation of the clinching process using finite element analysis for establishing clinching parameters[J].Thin-Walled Structures, 2003, 41(8): 691-709.
[12]	石柏军, 刘松林, 田恒宇. 压力连接模具参数的设计方法[J].汽车技术, 2010(6): 52-55.
[13]	MUCHA J. The analysis of lock forming mechanism in the clinching joint[J].Materials and Design, 2011, 32(10): 4943-4954.

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加热温度对AZ31镁合金薄板压力连接接头性能的影响

作者简介: 石柏军(1966-), 男, 湖北大冶人, 副教授, 博士。

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Effect of Heating Temperature on Clinching Joint of AZ31 Magnesium Sheets

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作者简介:
石柏军(1966-), 男, 湖北大冶人, 副教授, 博士。