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翻译 要求地道通顺 谢绝谷歌等

发布网友 发布时间:2022-05-06 12:59

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热心网友 时间:2022-06-30 15:54

In this paper, widely used in vehicle manufacturing instry as the research object Q345 low-alloy steel, prepared by MAG welding process plate butt welding of different weldment, respectively, its tensile, impact, bending mechanical test, and the welding zone the microstructure observation, the final measurement by blind hole resial stress in welding test plate.
The results showed that: the welding process for the same sample, 12mm thick, the tensile strength of welds and bending strength is better than 10mm thick weldments. 10mm and 12mm plates welded together, welding parts, the minimum bending strength. Process is different from the variation of impact toughness is also different: the original 12mm thick plate impact toughness of welds is less than 10mm thick weldment toughness. Open the weldment plate 12mm thick, the impact toughness of greater than 10mm thick weldment toughness.
Stress-strain tests show that: the weld resial stress and the fusion zone is relatively concentrated, the resial stress of the heat affected zone is relatively small. Thickness of welding resial stress is an important reason. Open flat plate welding resial stress is greater than the original resial stresses.

热心网友 时间:2022-06-30 15:55

methods for different craft flat docking preparation of welding welding on its stretch, respectively, shock, bending mechanical performance test, and the weld microstructure observation area, then using blind hole method for measuring the resial stress of welding test plate.

Test results show that, for the same process 12mm thick welding samples, the welding tensile strength and bending strength than 10mm thick welding. 10mm 12mm plate welding together with the welding, bending strength minimum. Process different impact toughness and change rules also different 12mm thick: former plate welding workpiece is less than 10mm thick the impact toughness of welding impact toughness. Open 12mm thick welding plate than 10mm thick the impact toughness of welding impact toughness.

Stress and strain test indicated: weld and fusion area is resial stress quite centralized place, heat affected zone resial stress relatively small. Plate thickness affect welding resial stress is one important reason. Opened plate welding resial stress is more than the original flat welding resial stress.
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