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
Aluminum can be joined by welding, brazing, as well as soldering. The choice of process depends on the strength of the joint required, composition of the base metal, joint configuration. Each process offers its’ own set of advantages and limitations. In this article, we shall discuss a few aspects related to the gas welding of … 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
The cutting torch is an important component of the oxyacetylene cutting equipment. In this article, we shall see in brief about the construction of the torch. Later in the article, principles of the cutting operation have been discussed in very brief. Oxyacetylene Cutting Torch The oxyacetylene cutting torch appears similar in construction to the oxyacetylene … Read more
Acetylene is an extensively used gas in welding industry. It is used for both welding and cutting operations. In most fabrications industries, acetylene cylinders are a common sight. It is important to understand the right storing pressure, behaviour of acetylene, how it is stored inside the cylinder, how to operate the cylinder safely, etc. for … Read more
Acetylene is an explosive gas at high concentrations, but it is a useful commodity used in the oxyacetylene welding. It should always be handled by trained hands in a systematic fashion. Setting up the equipment error-free is therefore important. It is important that a fire extinguisher in working condition be kept at hand to deal … Read more