Types Of Oxy Acetylene Welding Flames

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

Oxygen And Acetylene Regulators

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

Resistance Welding

Resistance welding is the name given to a group of welding processes in which coalescence between two metals is obtained by heat arising out of resistance posed by the work-piece to the flow of current. Pressure is generally applied to secure the joint firmly. The work-piece is a part of the electric circuit, through which … Read more

Oxyacetylene Welding of Cast Iron

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 (OFW)

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

Oxy-Acetylene Cutting

This article starts with an overview of oxy-fuel cutting overview, and proceeds to explain in detail about the oxy-acetylene cutting process. Oxy-Fuel Cutting Overview When steel is exposed to high temperatures of the order of 1600°F (871°C), it gets oxidized very fast by the oxygen. Steel gets oxidized by oxygen at room temperatures too, but … Read more

Oxy-Acetylene Welding of Copper, Brass & Bronze

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

Oxy-Acetylene Welding Of Steel

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

Plasma Arc Cutting (PAC)

Plasma arc cutting works on the same basic principles as the plasma arc welding. A column of hot ionized plasma issues from a constricting nozzle at a high velocity, and melts the base metal. It then removes molten metal to produce a kerf. In this article, we shall see in brief about the various components … Read more