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- spot weld nugget 点焊熔核
- NUMERICAL SIMULATION FOR RESISTANCE SPOT WELDING NUGGET PROCESS OF THREE LAYERS STAINLESS STEEL SHEETS 三层不锈钢板电阻点焊温度场数值模拟
- Study on the Infinite-unit Model of Spring Steel Spot Welding Nugget Thermal Field 弹簧钢点焊熔核温度场的有限元模型
- The weld nugget had a dynamic recrystallized,fine isometric crystal structure. 其中,焊核为明显的再结晶等轴晶粒,晶粒明显细化;
- The system can be used for detecting the quality and forecasting the size of nugget on real time during resistance spot welding. 以熔核尺寸为输出空间,可用于实时在线检测和预测的低碳钢点焊质量监测系统。
- We transplant the weight datas and region datas of the network to C language.Accordingly we propose a nugget diameter estimation system for resistance spot welding. 将模型数据移植到C语言中,建立了熔核直径在线估测系统。
- An engineering calculation method of spot weld fatigue life prediction is introduced. 摘要介绍一种焊点疲劳寿命预测的工程计算方法。
- And the draws of the stress, the whole life and the spot weld life of the crossmember are got after the analysis. 应用有限元分析法对副车架的疲劳台架试验进行强度和疲劳分析,得到副车架的应力分布图、副车架本体寿命云图和焊点寿命云图。
- In this estimator, the ANN is to realize the mapping characteristics from dynamic resistance to spot weld mecnanical proterty. 在此估测器中,经训练的神经元网络将用于描述动态电阻曲线与焊点力学性能的映射关系。
- Strength of resistance spot weld is determined by the physical attributes of weldment including material and geometric issues. 电阻点焊接头的焊接强度由母材和熔核的材料属性及几何特征决定。
- The element selection,gridding, the finite element model of spot weld, loading and resolution are also discussed andthe APDL program is wrote. 对单元选择,网格划分,焊接关系的模拟以及加载求解做了介绍,并使用ANSYS提供的参数化编程语言编制了程序。
- It shows that, the weldbonding structure is preferable to the actual using spot weld one, either in strength op in stress distributions. 结论是应用粘接点焊新技术的结构在结构强度特别是在应力分布上比点焊结构明显优越。
- According to the non-linear character of voltage signal during aluminum alloy spot welding, the nugget quality is quantitatively described by using the Box Counting Dimension as the characteristic parameter for the first time. 摘要针对铝合金点焊过程中电压信号的非线性特点,从分形理论出发,首次尝试利用盒维数作为特征量对点焊质量进行定量描述。
- In addition, the dynamic resistance in spot welding and its frequency spectrum are analyzed.The relationship between the dynamic resistance curve without type character and nugget size is founded. 另外还对焊接过程的动态电阻进行了分析,研究了不具有典型变化特征的动态电阻曲线与熔核直径的关系,并对动态电阻曲线进行了频谱分析。
- Results showed that high stress concentration around the spot weld edge may be the determinable factor for initializing and propagating of the high cycle fatigue crack. 分析结果表明:接头搭接区内表面上焊点边缘处的应力集中是接头高周疲劳裂纹起裂和扩展的决定因素。
- An axisymmetric finite element model is developed to simulate the temperature field of resistant spot welding according to the process of nugget formation of three layers stainless steel sheets. 根据三层不锈钢板电阻点焊熔核形成过程,建立了模拟三层板点焊温度场的轴对称有限元模型。
- The analysis can simulate the fatigue test in braking condition and find the potential problem of the intension and durability of the whole crossmember and spot weld. 通过分析,可以预测模拟制动工况的疲劳台架试验中副车架本体及焊点可能出现的强度及疲劳问题。
- The fusion course of different material (Fe and Ni)in spot weld with different process variable was researched.The weldableness and the selection of parameter were researched,too. 对异质材料铁-镍点焊在不同规范下熔合过程进行了试验研究,包括可焊性及规范参数的选择。
- The assemblies of the whole Body is combined by spot welding and Bolting. 整个车身的所有装配件都是由点焊或螺栓组装起来的。
- It has great interest to establish Expert System (ES) for spot welding process. 建立点焊专家系统,对于实现点焊过程的智能化,优化点焊规范参数,降低对操作者的要求,提高点焊质量,具有重要意义。
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