Titanium is a metal which is silvery gray in color and has about half the density of steel (0.163 lb/in3). Pure titanium is relatively soft has very low ultimate tensile strength. For use in structural applications titanium is alloyed with chromium and iron, chromium and aluminum, manganese and aluminum and manganese alone. These alloying elements […]
Using the right shielding gas is essential not only to prevent porosity but to get proper penetration, the mechanical properties you desire including weld strength, and overall weld quality. In order to select the right shielding gas you need to consider the following: – Alloy of filler metal – Material thickness – Mode of GMAW […]
Galvanizing is the application of a zinc coating to a ferrous material. It is done to prevent, or at the very least delay corrosion. The zinc coating can be applied in many different ways including but not limited to hot-dipping, metal spray and electrodeposition. Similar to galvanized steel is galvanneal steel. Galvanneal is the process […]
Have you ever developed, written, qualified or approved a welding procedure? If you have, what was the reason? To satisfy the requirements of a contract? To control quality? To improve productivity? To pass an audit? To help new welders? As welding consultants, CWIs and welding engineers we see hundreds of welding procedure specifications (WPSs) every […]
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 […]
Welding is a very complicated industrial process with many different variables. Because of this there are an innumerable amount of problems we can experience when we weld. From porosity and spatter to cracked welds, welding problems cost us a lot of money. In some cases welding problems are severe enough to cause significant delays adding […]
One of the specs we need to know about a particular welding machine is its duty cycle. The duty cycle gives you an idea of how hard and how long you can run a welding machine before it overheats and shuts down. Unfortunately at times we have issues with machines exceeding the duty cycle when it shouldn’t, […]
When qualifying a welding procedure specification (WPS) for fillet welds per Clause 4 of AWS D1.1 Structural Welding Code you must only perform a single test. You must do macroetches in three locations as shown below. It is assumed that if we can show root fusion at these three locations that our welding procedure is […]
A common question that is asked when manufacturers are trying to determine costs associated with welding is: How many pounds of wire can I deposit per hour? Or, how many pounds of wire can I deposit at a specific amperage or wire feed speed? There are charts to help you determine this, but it’s always […]
Many fabricators spend thousands of dollars in new welding equipment every year. They look for the latest and greatest technology that will allow them to reduce manufacturing costs. We have seen some of our customers justify the purchase of robots and other types of advanced welding equipment relatively easily. Some pieces of equipment pay for […]
