If you are new to welding, you might be wondering whether you can weld a black iron pipe. You might even be wondering what this pipe is in the first place. In this article, we define briefly what a black tube is and discuss whether or not you can weld this kind of pipe. What is Black Pipe?

Common weld symbols and their meanings The use of welding symbols enables a designer to indicate clearly to the welder, important detailed information regarding the weld. The information in the welding symbol can include details for the weld such as length, depth of penetration, the heig

Today we will learn about the types of welding flames used in gas welding. In my last post, we have discussed gas welding. In this welding process gases, fuels are burned and produce high-temperature flames which are further used to create a weld joint. The flame plays lead role to create we

Soldering is a common way to bond metal together. Aluminum can be soldered, but doing so can be much more difficult than with other metals. There are tips that can be applied to make soldering aluminum easier, including using the right blend of solder and removing aluminum oxide. Aluminum is

Nickel alloys are usually selected due to their excellent versatility, corrosion resistance, and performance under high temperatures. Not surprisingly, this makes nickel alloys a popular choice for use in extreme environments, particularly in aircraft turbines, steam turbines, nuclear power pla

Cast iron welding is possible but problematic due to the high carbon content. This carbon content is often 2-4%, which is about ten times that of most steels. During the welding process, this carbon migrates into the weld metal and/or the heat-affected zone, which leads to increased brittleness

What is Flux-Cored Arc Welding (FCAW or FCA) ? Flux-cored arc welding (FCAW or FCA) is a semi-automatic or automatic arc welding process. FCAW requires a continuously fed consumable tubular electrode containing a flux and a constant-voltage or, less commonly, a constant-current welding power

Stainless steel is a popular building material long heralded for its durability and substantial resistance to corrosion. Welding with this attractive metal does pose some unique challenges that need to be considered before launching into a project with stainless steel. Let’s take a closer l

What is Metal Plating? Metal Plating is a thin layer of metal that has been added to the outside of a material. It is a surface covering process by which a metal is deposited on a conductive surface. Plating has been done for hundreds of years; it is also critical for modern technology. P

Titanium is considered to be an exotic metal due to its low weight, good strength, and corrosion resistance. However, in the past, it was believed that proper titanium welding can be performed only in sealed chambers. It’s a reactive metal that can become contaminated by atmospheric gases.

Welding joins materials together by melting a metal workpiece along with a filler metal to form a strong joint. The welding process produces visible smoke that contains harmful metal fume and gas by-products. This fact sheet discusses welding operations, applicable standards, and suggestion

What is Submerged Arc Welding (SAW)? Submerged Arc Welding (SAW) is a joining process that involves the formation of an electric arc between a continuously fed electrode and the workpiece to be welded. A blanket of powdered flux surrounds and covers the arc and, when molten, provides electri

What is Fit? In precision mechanics, fit refers to the degree of ‘looseness’ with which a shaft is inserted into a bored hole. This coupling is related to the tolerance or allowance of both parts’ dimensions. The shaft and the orifice must be of a similar diameter, otherwise, there will n

What is Silver Brazing? Silver brazing is a joining process whereby a non-ferrous filler metal, the alloy is heated to melting temperature (above 800°F) and distributed between two or more close-fitting parts by capillary attraction. Silver brazing uses filler metals and alloys such as silve

Welding is a process where two materials are fused together through heating, intermixing, and then cooling the materials and/or a filler to form a strong join. From arc welding to spot welding, new and used welding robots are typically used in welding processes where the weld required is repeti

Welding Magnesium is not something many welders I know are willing to attempt, even though it is possible. Magnesium tends to catch fire if heated too much and God help you put out a magnesium fire once it gets started. Magnesium has a flashpoint of 883 ˚F and burns at a temperature of 4,00

What Is Friction Welding? Friction welding is a solid-state welding technique that welds workpieces by generating heat through mechanical friction between workpieces in relative motion to one another, with the addition of a lateral force called “upset” to plastically displace and fuse the ma

What is Friction Stir Welding? Friction stir welding (FSW) is a solid-state joining process that uses frictional heat generated by a rotating tool to join two facing workpieces without melting the workpiece material. Heat is generated by friction between the rotating tool and the workpiece m

For many years the two most common methods of joining copper tubes and fittings have been soldering and brazing. These tried-and-true methods are in a number of ways similar, yet there are also several distinct differences that set them apart. This paper explains the similarities and highli

What is Carbon Arc Welding? Carbon arc welding (CAW) is a process that produces the coalescence of metals by heating them with an arc between a non-consumable carbon (graphite) electrode and the workpiece. In carbon-arc welding, a carbon electrode is used to produce an electric arc between t