采用水浸超声聚焦直入射法对镀锌薄钢板点焊接头进行了质量评价。
The quality of spot welds in galvanized sheet metal was evaluated by using ultrasonic water immersion focusing method.
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。
Strength of resistance spot weld is determined by the physical attributes of weldment including material and geometric issues.
并利用三维动态有限元模拟了点焊接头疲劳裂纹扩展过程中频率变化特性。
Then the characteristics of frequency variation during the fatigue crack propagation process are simulated by three - dimensional dynamic finite element analysis.
提出一种基于参数监测和信息处理保证电阻点焊接头质量的计算机软件系统实现方法。
A method is proposed to design the computer software that is used to assure joint quality of resistant spot welding based on parameters monitoring and information processing.
利用三维有限元模拟和动态响应试验对点焊接头疲劳裂纹萌生和扩展特性进行了研究。
Fatigue crack characteristics are investigated based on the dynamic response simulation by finite element and the dynamic response experiments for tensile-shear spot-welded specimens.
然后将试验得到的大量点焊工艺参数与相应点焊接头质量的试验数据提供给神经网络学习。
Then a lot of experimental data about welding parameters and corresponding spot welding quality were supplied to the ANN for training.
试验结果表明：电极深冷处理改善了镀锌钢板点焊工艺，提高了点焊接头强度，从而提高了点焊质量。
The results showed that electrode by cryogenic treatment could visibly improve the spot welding procedure and raise joint strength for galvanized sheet.
基于对实际点焊接头硬度分布的分析，建立了包括熔核、热影响区和母材的单点点焊搭接接头计算模型。
Based on the hardness analyses of actual spot welded joints, a computational model that consists of nugget, HAZ and base metal is established for the single point spot welded lap joints.
讨论了恒幅及变幅载荷作用下，拉剪点焊接头的疲劳性能，并应用断裂力学对实验结果进行了分析和整理。
This paper discussed the fatigue strength of single-spot-welded joints under constant and variable amplitude loading. The fracture mechanics was also used to analyse the experimental results.
曲线上第一载荷峰值略低于单纯胶接接头的断裂载荷，第二载荷峰值与单纯电阻点焊接头的强度基本一致。
The first peak load is lower slightly than the fracture load of adhesive bonded joints, and the second peak load is almost the same as the fracture load of the spot welded joints.
曲线上第一载荷峰值略低于单纯胶接接头的断裂载荷，第二载荷峰值与单纯电阻点焊接头的强度基本一致。
The first peak load is lower slightly than the fracture load of adhesive bonded joints, and the second peak load is almost the same as the fracture load of the spot we…
采用试验和有限元分析相结合的方法，考察了锻压力对铝合金电阻点焊接头中残余应力和接头疲劳行为的影响。
Using experimental and finite element analysis methods, the effects of electrode forging force are investigated on residual stress and fatigue behavior of spot welded aluminum alloy joints.
将人工神经网络技术(ANN)引入点焊领域，建立了点焊工艺参数选择ann系统和点焊接头质量预测ann系统。
This paper proposes a procedure for artificial neural network (ANN) in spot welding, and establishes spot welding parameter selecting ANN systems and spot welding joint quality predicting ANN systems.
在同等焊接工艺下，国产钢板点焊接头的剪切强度高于瑞典钢板点焊接头，国产钢板点焊接头的显微硬度略低于瑞典钢板。
Under the same welding process, the shear strength of domestic spot welding joint is higher than Swedish, but the microhardness of the domestic is slightly lower than the Swedish plates.
并针对DP590GA焊点熔核中锌元素的残留现象，设计出加预热的双脉冲焊接规范，进一步改善其点焊接头的力学性能。
Aiming at the zinc residue in the weld joint nugget of DP590GA, a double-impulse welding parameter with preheating impulse is designed to further improve its mechanical properties of the weld joint.
结果表明，该方法的检测结果可靠，不仅能对汽车车身点焊接头进行100%的快速无损检测，而且适用于任何金属薄板点焊接头质量的检验。
Test results showed this method is credible, and it can be used to inspect the spot weld quality of car bodies quickly by 100%, and inspect the spot welding quality of any sheet metal.
采用不同的点焊工艺参数对高强度钢板BIF 340实施焊接，并对焊接接头进行组织性能分析，研究点焊参数对BIF 340焊接性能的影响。
We welded the high strength steel BIF340 in different spot welding processing parameters, the structure and property of the welding joint are analyzed.
焊接和有关技术。电阻点焊凸焊或缝焊搭接接头。带解释的缺陷分类。
Welding and allied processes. resistance spot, projection and seam welded lap joints. classification of defects with explanatory comments.
焊接和有关技术。电阻点焊凸焊或缝焊搭接接头。带解释的缺陷分类。
Welding and allied processes. resistance spot, projection and seam welded lap joints. classification of defects with explanatory comments.
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