These articles cover oxyfuel welding basics, with some focus on oxyfuel equipment, oxyfuel welding of various metals and alloys, and oxyfuel welding positions.
In this article, we shall see an introduction on the various types of oxy acetylene welding flames, how to identify them by their appearance, lighting the acetylene torch to obtain a flame, and temperatures observed in the various portions of the flame. Later on, each kind of flame has been discussed in some detail, including … Read more
The gases stored in the gas cylinders used for oxy-acetylene welding are originally at very high pressure, and cannot be directly used as such. Here, the oxygen and acetylene regulators play an important role in reducing this pressure to a working pressure. These regulators enable maintaining a constant desired pressure at the point of delivery, at a … Read more
Oxyacetylene welding of cast iron is relatively easy if attention is paid to some simple aspects of it. Not just the aspects specific to cast iron, but aspects in general about oxyacetylene welding as well. This article contains some hands-on advice on the subject. The commonly used variety of cast iron is the grey cast iron. If … Read more
Oxyfuel welding is a welding process in which metals are joined by heat of the flame emanating from the tip of an oxyfuel welding torch. The pressure may or may not be applied and filler rod may or may not be used. As the name suggests, any oxy-fuel welding process involves two gases. One is … Read more
This article introduces copper, brass and bronze and their properties pertinent to their weldability. In the latter stages of article, aspects related to welding of copper, brass and bronze have been discussed in some detail. Copper Copper has a reddish color, see the figure below. It has high electrical and thermal conductivity. Because of its’ … Read more
The term steel does not mean any one single composition. It is a vast variety of alloys that can all be called steel. If the metal has only carbon, and does not contain any other intentionally added alloy (except the impurities), then it is called plain carbon steel. Sometimes, elements such as vanadium, chromium, molybdenum, … Read more
Acetylene is a heavily used gas in oxy-acetylene welding. It is an organic substance, composed of only carbon and hydrogen at the molecular level. Its’ molecular construction consists of two carbon atoms bonded to each other through a triple bond. Each carbon atom in turn is bonded to one hydrogen atom through a single bond. … Read more
The oxyacetylene torch is a vital component of oxyacetylene equipment. Broadly speaking, it receives gas supply from the two gas cylinders (one for acetylene and other for oxygen), mixes them, and delivers them to the point of flame. Robust and precise construction of the oxyacetylene welding torch is important for obtaining a quality weld, and … Read more
Fillet weld is the easiest way to join two metals. It requires no joint preparation, and can be completed in no time, and is cheaper. Due to this reason fillet weld is a very popular choice of weld among designers. A fillet weld can be used to join all five types of basic joint types: … Read more
This article discusses different oxyfuel welding positions such as flat, horizontal, vertical, and overhead. At the end is a small discussion on oxy-fuel forehand welding and oxy-fuel backhand welding. OxyFuel Welding Flat Position OxyFuel flat position welding is performed from the top side of the joint. The face of the weld is horizontal in this position. … Read more