Calculating the volume of a weld is one of the first steps to be taken when estimating the cost of making a weld. With this information, and knowing the deposition rate of the process, it is possible to determine the arc time the length of time that an arc is burning and depositing weld metal and the amount of welding consumables required to fill the joint. Both of these are required in order to calculate the cost of making the weld. Costing will be dealt with in future Job Knowledge articles. Determining the volume of a weld requires some knowledge of basic geometrical calculations to determine the area of the weld and multiply this figure by its length. The first step then is to calculate the cross sectional area of the joint.
Weld defects/imperfections - incomplete root fusion and penetration
Weld Fusion vs. Weld Penetration
A full penetration weld is a type of weld that has completely consumed the root of the joint. A full penetration weld is often a requirement for joints that will be subjected to high stresses because it typically has higher strengths than a partial penetration weld. A full penetration weld is a popular type of weld because it is stronger than a partial penetration weld for several reasons:. A full penetration weld can be used to describe either a groove weld or a fillet weld. For instance, a full penetration butt joint weld is a butt joint that requires the weld material to completely consume the entirety of the faying surfaces of the materials butted up against one another.
StructX > Resources > Stress and Strain > Welded Connections
Bartlett Quimby. In the modern world of structural steel, welding is the process of joining two steel pieces the base metal together by heating them to the point that molten filler material mixes with the base metal to form one continuous piece. Webster's defines welding as "to unite metallic parts by heating and allowing the metals to flow together
Welding is commonly used in metal joining processes for products such as automobiles and airplanes. The quality of the weld can be assessed by measuring the dimensions of the weld penetration on a cross-section sample, and by inspecting defects such as insufficient penetration and joining failure. Also, this microscope can quickly measure 2D and 3D dimensions, and automatically generate measurement results such as images and values in a report format, thereby achieving dramatic efficiency improvement. Welding is commonly used in the joining of metallic components for products such as automobiles, airplanes, railroad cars, and ships. For automobiles, joining occurs mainly by means of various types of arc welding, resistance spot welding, and laser welding.