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The evolution of plasma cutting

Plasma cutting has come a long way since it was first developed in the late 1950s by engineers at Union Carbide Corp. Today it is one of the most widely used metal plate cutting processes for a large variety of industries.

Early plasma cutting systems were used primarily for cutting stainless steel and aluminum plate from 0.5 to more than 6 in. thick. These systems, primitive by today’s design standards, were the most practical method for cutting heavy nonferrous plate. Most were mounted on XY cutting pantograph-style machines that used either photo-cell tracers to duplicate large black line engineering drawings of the parts to be cut, or a magnetic tracer to follow the path of a steel template.

Engineers continuously worked on the process throughout the 1960s with the goal of improving cut quality and the life of the consumable nozzles and electrodes in the cutting torch. Plasma began gaining momentum during this period as the process improved and as users became aware of its ability to cut complex shapes in nonferrous materials at very high speeds.

In 1968 radial water injection was introduced. This patented nozzle technology used pure water injected radially around the plasma jet to constrict the arc, increasing its energy density while improving nozzle cooling and thus allowing faster cut speeds, higher-quality cuts, and the ability to cut carbon steels at speeds four to six times faster than an oxyfuel cutting process.

At about that same time, XY coordinate drive cutting machine technology was being improved. Microprocessor control technology started to become the brains of the XY motion control machines, allowing for better accuracy, higher cutting speeds (necessary for the new-technology plasma systems), and higher levels of automation and productivity on the shop floor.

Through the 1970s plasma cutting technology replaced many oxyfuel-based steel cutting applications from 0.25 to 1 in. thick, while still maintaining its stronghold on the stainless and aluminum markets. While plasma could cut steel thicker than 1 in., the oxyfuel process still was a lower-cost alternative for heavier steel plate.

Recent Technology Developments

In the last seven years, developments in plasma cutting technology have come at a fast pace. The latest revision on high-definition machines is their full integration with the CNC machines they are coupled with. New CNCs have touchscreen accessibility, minimizing the number of buttons involved in operating a plasma cutting machine and making operation as simple as almost any Windows?-based software. Operator training has been simplified on even the largest, most complex CNC plasma cutting machines.

Air plasma cutting systems from the major manufacturers also improved dramatically in terms of cut quality, consumable life, and duty cycles. These systems, primarily designed for portable and in-shop hand-held cutting applications, now are available with quick-change mechanized torches and interface easily to a variety of lower-cost CNC machines. Systems are available from a 30-amp, toaster-sized unit that operates on 120-V household current to sever materials up to 0.5 in. thick, to a 125-amp, 100 percent duty cycle industrial unit that can sever 2.25-in. materials. Both portable systems can be used with a hand torch or can be mechanized for a variety of automated cutting applications.

What can be considered light duty?

light duty plasma cutting machine can become a need for any workshop, artist, contractor, etc. that so far have been using oxy-fuel and is ready to make the leap to a better solution.

What Are The Advantages Of Fiber Laser Cutting Machine

Fiber laser is well received in the market now, because of its outstanding advantages of good beam quality and high conversion efficiency, it is widely loved in some finishing fields. At present, the proportion of fiber laser in the industrial field is close to 50%, which is also a kind of active choice for products in many industrial applications. Compared with traditional gas and solid-state lasers, fiber lasers have great advantages as frequency conversion light sources. In this article, we are going to talk about what is fiber laser cutting machine, what are the features, advantages & benefits of fiber laser cutting machine and applications & uses of fiber laser cutting machine.

The optical plate fiber laser cutting machine can be used for both plane cutting and oblique cutting, with neat and smooth edges. It is suitable for high precision cutting of metal plate. At the same time, the manipulator can replace the original five axis laser for 3D cutting. Compared with ordinary CO2 laser cutting machine, it saves more space and gas consumption, and has high photoelectric conversion rate. It is a new energy-saving and environmental protection product, and also one of the world’s leading technology products.

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