The fabrication process begins with cutting of metal pieces into fine shapes which are then bend appropriately and assembled to create a grand project. Cutting is a crucial process that defines the sizes of materials to be used. It uses different methods depending on the material to be cut. Sawing, shearing and chiselling are the basic cutting methods that are used in light steel, copper and aluminium applications for small fabrication processes. However, large fabrication processes such as construction of mega-structures may require tough metals such as Tungsten and Nickel to be cut. This makes it necessary to use powered variants such as torches and numerical control devices.
Demtra uses machine tools known as press brakes to bend sheet and plate materials in to different forms The tool uses an extrapolated punch and die technique by forming predetermined bends through curving of work pieces systematically. The sides of press brakes are formed by two V frames connected to a table beneath, and supported on a freely movable beam. The upper part is mounted on a beam while the bottom tool is permanently engraved on the table, creating a combination that produces a perfect bends for all metal types.
The common starting materials for welding fabrication Toronto are sheet metal and structural steel. Structural steel is a steel construction material formed on the basis of certain standards of mechanical properties and chemical composition. It is mounted into a specific cross section and shape. The composition, shape, strength and size of structural steel are regulated to create a certain the required standard of products. Sheet metal, on the other hand is formed into thin flat pieces though an industrial process. It is the most fundamental form of metal working and can be shaped and bend into various shapes. The thickness of sheet metal plays an important role in determining its usability in fabrication. Extremely thin materials are known as foils while pieces thicker than a quarter an inch are called plates.
The material used in welding and fabrication Toronto is selected depending on its physical and chemical properties. Different metals such as brass, copper, tin, nickel and aluminium can be combined din different proportions depending on the strength on the intended outcome