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首页> 外文期刊>Inspection Trends: The Magazine for Materials Inspection and Testing Personnel >Choosing the Right Tool for the Job: Here are some tips for selecting tools to help in visual inspection as well as how to properly use them
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Choosing the Right Tool for the Job: Here are some tips for selecting tools to help in visual inspection as well as how to properly use them

机译：为工作选择合适的工具：以下是一些技巧，这些技巧可供选择以帮助进行目视检查的工具以及如何正确使用它们

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Visual examination of welds involves more than looking at a completed weld to determine if it meets the visual acceptance criteria. A thorough weld inspection ensures the weld meets the requirements of the drawings and the welding standard. Before the first arc is struck, the filler metal and the base metal need to be checked to ensure they are the "right stuff." Joint preparation and fit-up must be verified as well. Among the other attributes to be checked are the thickness of the base metal, bevel angle, root face dimension, root opening, and whether there is misalignment between the members being joined. During the welding process, the arc voltage, welding current, and travel speed are just a few of the items to check. After the weld is completed, the weld reinforcement of the groove weld, the size of the fillet weld legs, the convexity or concavity of the fillet weld face, the shape of backgouged excavations, and a host of other dimensions must be verified. The human eye is key to performing visual inspection. Unfortunately, the eye cannot be calibrated, so the inspection task requires measuring tools to verify key dimensions.
机译：视觉检查焊缝不仅要查看完成的焊接以确定其是否满足视觉接受标准。全面的焊缝检查可确保焊缝符合图纸和焊接标准的要求。在第一个电弧产生之前，需要检查填充金属和贱金属，以确保它们是“正确的材料”。联合准备和装配也必须经过验证。在要检查的其他属性中，包括母材的厚度，斜角，齿根面尺寸，齿根开口以及要连接的构件之间是否存在未对准。在焊接过程中，电弧电压，焊接电流和行进速度只是要检查的几项。焊缝完成后，必须验证坡口焊缝的焊缝加固，角焊缝支腿的尺寸，角焊缝焊面的凸度或凹度，后挖开挖的形状以及其他许多尺寸。人眼是进行视觉检查的关键。不幸的是，眼睛无法校准，因此检查任务需要测量工具来验证关键尺寸。

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