Selecting the best welding process is a critical step in developing a welding procedure that attains the desired quality and optimizes productivity. Many times we look for the welding process that can give us the highest deposition rate to optimize productivity. However, every welding process has limitations. For example, submerged arc welding (SAW) has extremely […]
Maintenance-related problems are responsible for a large portion of bad welds in every day welding. However, these causes go unnoticed and unresolved because they happen slowly over time. A proper preventive maintenance program for welding machines, CNC cutting tables and other industrial equipment is absolutely necessary. Many of the problems related to maintenance that cause […]
Welding out of position does not need to be overly complicated. It does present a challenge, especially for inexperienced welders, but there are things we can do to make this go well for everyone. When we talk about out of position welding we mean welding vertical up or overhead. Vertical down is also out of […]
This question can be answered very quickly. Gas Metal Arc Welding (GMAW) and Submerged Arc Welding (SAW) can have 98-99% deposition efficiency. However, the question is a bit more complicated since when we talk about efficiency we don’t just care about deposition efficiency (how much of the electrode becomes weld metal). What we care about […]
The use of prequalified welding procedures has many advantages as well as many disadvantages. One danger of using prequalified welding procedures is that AWS D1.1 allows for quite a bit of freedom in weld sizes. If you look at Table 5.1 –Prequalified WPS Requirements of AWS D1.1/D1.1M:2020 Structural Welding Code (Steel) you’ll see that in […]
Can our selection of shielding gas affect the strength of a weld and other important mechanical properties? Absolutely! The difference is more pronounced when using flux-cored (FCAW) wires than when using mig (GMAW) wires, especially as the wire’s tensile strength goes up. Although we can affect strength by using different gases, what we should be […]
Passing the AWS Structural Welder Qualification Test (vertical up certification on Flux-Cored Arc Welding) can be problematic for some, but insuring the right procedures and techniques are used should make things a lot easier. The good thing about this qualification is that if passed it certifies the welder no just in the 3G position, but […]
