| 正态分布焊接热源集中系数的确定和研究 |
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| 引用本文： | 路登平,李义丹,司树恒,赵家瑞,胡吉安. 正态分布焊接热源集中系数的确定和研究[J]. 焊接学报, 1986, 0(1): 47-54 |
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| 作者姓名： | 路登平 李义丹 司树恒 赵家瑞 胡吉安 |
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| 作者单位： | 天津大学 讲师(路登平)，天津大学 助教(李义丹)，天津大学 工程师(司树恒)，天津大学 副教授(赵家瑞)，天津大学 讲师(胡吉安) |
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| 摘 要： | 本文利用有限厚度无限大平板的三维焊接温度场计算公式,通过最小二乘法使计算的热循环曲线与实际的热循环曲线最佳逼近,推导出了焊接热源集中系数K 的新的试验-计算方法。实践表明,这种方法不但简单、可靠,而且实验条件也不苛刻。本文还建立了给定规范下焊接热源集中系数K 与焊接电流的关系曲线,并对曲线进行了分析。
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| 收稿时间： | 1984-09-04 |
THE DETERMINATION OF NORMAL DISTRIBUTION CONCENTRATION FACTOR FOR HEAT SOURCE OF WELDING |
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| Lu Dengping,Li Yidan,Si Shuheng,Zhao Jiarui and Hu Jian. THE DETERMINATION OF NORMAL DISTRIBUTION CONCENTRATION FACTOR FOR HEAT SOURCE OF WELDING[J]. Transactions of The China Welding Institution, 1986, 0(1): 47-54 |
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| Authors: | Lu Dengping Li Yidan Si Shuheng Zhao Jiarui Hu Jian |
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| Affiliation: | Tianjin University,Tianjin University,Tianjin University,Tianjin University and Tianjin University |
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| Abstract: | In this paper,by the use of the formula for 3-dimensional temperature field of welding on unlimited plate of limited thickness and by the use of the method of least square,the authors get a best approach for the calculated thermal cycle curve to the actual one.A new "test and calculate" method is deduced for the determination of the concentration factor K for heat source of welding.It is simple and reliable,and involves no severe condition for experiment.A curve showing the relation between K and welding current under given specifications is established and supplemented with analysis. |
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