The computer's fast reaction time means the machine can work at high deposition rates and travel speeds at which weld pool conditions are too critical to be sustained by hand. This ensures the arc and weld puddle dynamics are maintained in ideal conditions. Arc voltage, oscillation width, travel speed, and wire speed all vary following a single movement of the Rotoweld's joystick. This results in a unique machine that is so easy to operate that an operator can fully function in less than one week. Tecnar's Rotoweld features 4D Synergy welding, which is a unique patented technology that features all welding parameters in a single joystick command. Nowadays, Tecnar has expanded to four distinct product lines that share a common goal: to make a difference in the daily life of its clients by integrating its technology and know-how. ![]() Tecnar has 30 years of experience in automated pressure pipe welding and more than 150 commissioned Rotowelds around the world. Tecnar is a family-owned company that was founded in 1989 as a spin-off from Canada's National Research Council. "So we focused on this," he said, "and developed a vision system and control strategy that varies the welding parameters dynamically to control the penetration of the root pass." This was the start of the Rotoweld. If the fabricator had any automation at all, it required additional handling between the hand welding and the automated station. For years, pipe welding operations had installed automated systems for the cover and cap pass, but they had yet to automate the root pass successfully. This is where Nadeau and his team saw an opportunity. It's a delicate operation with a preparation that by nature will vary. “You'd have to re-machine all the flanges and pipe ends. "It's not practical to have a perfect, repeatable preparation," Nadeau said. This is when Nadeau came up with the idea of automated pipe spool welding machines, as he explains in an article on The Fabricator. "If you went to the welding trade shows at the time, you often saw about 15 companies that were putting together vision systems for welding automation." Many of these vision-system companies are not around anymore, mainly because manufacturers found it more cost-effective to adapt processes to automation by making weld preparations more consistent. "This was a period when a lot of vision systems were being developed," Tecnar's founder, Francois Nadeau said. The reality of the show floor in automation and the idea of the Rotoweldīack in the 1980s, many companies were developing vision systems for welding automation. ![]() The automated pipe spool welding machines by Tecnar fits in well with this trend. The machines can connect and communicate with each other via the Internet of Things to become more efficient. With industry 4.0, the machine can use its data to streamline the production processes without the need for human intervention. The machine is simply following a set of programmed parameters, created by a human. This trend continues in industry 3.0, whereby machines are automated, but mostly run-on human input. Industry 4.0, or sometimes called Smart Industry, is the name for a trend of automation for industrial manufacturing. This leads to an increase in automated pipe spool welding. But the fact that pipes are mostly used for transporting dangerous gasses or liquids, there is almost no room for errors. In these cases, the process of spool welding is partially automated, but a qualified welder still manually welds the pipe spools. For example, conveyor belts that transport the spools to the right place in the shop or robots to move the parts into position to be welded. The welding process itself can be automated with robots and automated welding machines, but also the activities around the welding process can be automated. There are many different possibilities when automating the pipe spool welding process. The very dynamic field of automation in spool welding To deal with these problems, automated welding robots can be the solution. It is proven to be extremely difficult to produce repeatable and consistent high-quality welds, as humans are prone to error. ![]() Furthermore, the pipe welders are constantly making decisions about for example the torch angle and travel speed. There is a shortage of highly skilled and qualified welders in the pipe welding industry, which makes them expensive. It can be very difficult to find the right welders to weld the pipe spools. ![]() The spools are manufactured precisely by following several steps such as cutting, beveling, welding, or other processes depending on the requirements. Pipe spools are commonly used in industrial constructions such as oil- and gas production facilities, power plants, refineries, and petrochemical plants. It is a term that covers pipes, flanges, and fittings. Pipe spools are pre-built parts of a piping system.
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