The Reason Behind AWS D1.1 Minimum Fillet Weld Sizes

It's not what you think

Have you ever noticed that there are 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/D1.1M:2020 Structural Welding Code (Steel) you can find this on Table 7.7.   If you happen to own a copy of AISC 360-16 Specification for Structural […]

5 Questions and Answers You Must Know for the CWI Exam

And fundamental principles for the fabrication of steel structures

If you have taken or hope to take the CWI exam you probably have searched for some practice exam questions.  In practicing for the code book portion of the test you may have come across a few questions for which you could find the answer, but didn’t really understand the importance of the question or […]

Rule of Thumb for Fillet Weld Sizes

Many fabricators can lower their welding costs significantly if they paid close attention to weld sizes.  If a print calls for a ¼” fillet weld and in production you make a 5/16” fillet weld, you are overwelding by 56%!  If the print calls for a 3/16” fillet, the 5/16” fillet weld you deposit would be […]

Bigger (Weld) Is Not Always Better

When it comes to fillet welds, bigger is not always better.  A fillet weld is easy to measure, simply take out your fillet weld gauges and measure it.  However, there is an incorrect assumption that a bigger weld (as measured with a fillet gauge) is always stronger than a smaller weld. Before we get into […]

12 Ideas to Reduce Welding Costs

Controlling costs associated with welding operations does not have to be complicated. Yet, many fabricators miss out on savings substantial amounts of time and money simply because they are too busy to take some time to implement cost reduction initiatives.  Some of the ways in which costs can be reduced are presented below.  Some of […]

Fillet Weld Leg Sizes Are Meaningless!

Measuring fillet weld legs is meaningless, well… not really.  Fillet weld leg sizes are very important, but simply measuring the leg of a fillet weld does not tell us if we actually achieved the desired throat dimension.  The strength of a fillet weld is determined by its effective throat.  As you can see in the […]

9 Basic Steps to Read Welding Symbols

The ability to interpret welding symbols is very important, yet the vast majority of welders have hard time doing so.   A very small percentage of companies require that welder candidates know how to read symbols.   With the shortage of welders in today’s market imposing this prerequisite would not be feasible. What companies need to do […]