Welding operations are a set of technological processes for joining (fusion welding) metals, alloys, or other materials into a single structure by creating strong interatomic bonds. Welding is performed using intense heating by flame, an electric arc, or pressure to form durable, permanent joints. The process includes not only the welding itself but also preparatory and assembly operations, as well as subsequent weld seam processing.
New Standard provides custom welding services using modern equipment and industrial technologies.
How Welding Works | Electric Arc Welding
- Circuit closing — the electrode briefly touches the metal, forming an electric arc;
- Heating — the arc melts the edges of the parts and the electrode material (if consumable);
- Protection — during heating, the electrode coating releases protective gases and slag that prevent surface oxidation;
- Weld formation — the molten metal cools and solidifies, forming a continuous welded joint between the parts.
Electric arc welding is highly versatile: this method can be used to join parts made of carbon steel, low-alloy steel, stainless steel, copper, aluminum, and other non-ferrous metals.
Main Types of Welding Operations
- Manual arc welding (MMA) — performed with a consumable coated electrode; universal for most metals and alloys, widely used in construction and repair work;
- Argon arc welding (TIG) — uses a non-consumable tungsten electrode in an argon atmosphere to produce precise and high-quality welds; optimal for aluminum, stainless steel, and thin metals;
- Semi-automatic welding (MIG/MAG) — performed with a consumable wire in a shielding gas environment (inert or active); commonly used in automotive repair and construction;
- Submerged arc welding (SAW) — an automated process for long welds on thick metal sections; widely used in shipbuilding and bridge construction;
- Gas welding — based on an oxy-acetylene flame; used for thin metals, plumbing, and repair work.
Specialized welding methods are also used, including plasma welding, electron beam welding, and electroslag welding. Plasma welding uses a constricted arc and high-temperature plasma for high-precision applications; electron beam welding uses the energy of an electron beam in a vacuum; electroslag welding uses the heat of molten slag to join very thick metal sections.
Welding | Classification
Welding is divided into three main classes: thermal, thermomechanical, and mechanical. Each class uses different energy sources to join metal parts and surfaces and has its own field of application.
Thermal welding is the most common type. It is based on the generation of intense heat to melt the edges of two or more metal parts and form a strong joint at the atomic level.
Thermal welding includes the following methods:
- Arc welding — manual metal arc (MMA), semi-automatic (MIG/MAG), and argon arc welding (TIG);
- Gas welding — uses a high-temperature oxy-acetylene flame;
- Plasma welding — utilizes the thermal energy of ionized gas (plasma);
- Laser welding — uses the energy of a focused laser beam;
- Electron beam welding — employs the energy of an electron beam in a vacuum;
- Electroslag welding — uses the energy of electric current passing through molten slag;
- Thermite welding — based on an exothermic reaction of a special powder mixture (powdered aluminum and iron oxide).
Thermomechanical welding methods combine heat and high pressure to form strong joints.
Mechanical welding methods use only high pressure; this category includes friction welding and explosion welding.
Types of Welding
- MIG/MAG — semi-automatic joining of parts using a consumable wire;
- MMA — universal manual arc welding suitable for most metals and alloys;
- TIG — high-quality argon arc welding with a non-consumable electrode, used for joining stainless steel, aluminum, and aluminum alloys.
Argon arc welding offers several advantages and allows you to:
- produce high-quality welded joints with high strength and long service life;
- weld thin-walled metal products;
- perform welding operations at high speed due to high operating temperatures;
- join complex structural components where other welding methods cannot be applied;
- carry out welding operations without sparks that could pose a risk to the operator’s health;
- automate welding processes with minimal operator involvement.
How to Order Welding Services
Company New Standard provides manufacturing services in the field of metalworking, including welding, milling, and turning operations using modern technological equipment. To receive a consultation and clarify the feasibility of performing the required work, please contact us in any way convenient for you.