Tag: welder

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Minimum Size of Fillet Weld

Amarine Antonio

Every inspector has dealt with the design rules that prohibit sizing a fillet weld below a certain size for a given thickness of material? If you look at AWS D1.1 2020 Structural Welding Code (Steel) you can find this in Table 7.7. If you happen to own a copy of AISC 360-16 Specification for Structural Steel Buildings you’ll find this on Table J2.4. Below you can see AISC’s Table J2.4 – Minimum Size of Fillet Welds.  The minimum fillet weld sizes are basically based on the thickness of the material being joined. Most people think that the minimum fillet weld sizes are … Continue reading Minimum Size of Fillet Weld

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How to control distortion in welding?

Amarine Antonio

Distortion caused by the heating and cooling cycles of welding is extremely problematic. It can place structures out of dimensional tolerance creating costly rework. In some cases, parts need to be scrapped. Understanding the causes of distortion is an absolute necessity for those managing welding operations. Three mistakes account for the vast majority of distortion problems. These are: Over-welding One of the things you may hear most often when it comes to reducing or eliminating distortion from welding is to pulse weld. Pulse welding is done by switching back and forth between a peak (high) and a background (low) current. Manufacturers of welding … Continue reading How to control distortion in welding?