In plasma arc cutting plasma is created by

Combining acetylene with acetone. In plasma arc cutting plasma is created by ____.

A pilot arc with the transferred arc process.

In plasma arc cutting plasma is created by. Plasma arc cutting is based on the establishment of a direct current arc between a tungsten electrode and the surface of a conducting metal. The arc is created by ionizing a gas plasma gas and then blowing the ionized plasma towards the surface of the workpiece in order to form a conductive pathway down which the main plasma current passes. In plasma-arc cutting plasma is created by _____.

Combining acetylene with acetone. Exposing cutting gas to radioactive material. Passing fuel gases through a large orifice inside the torch.

Superheating gas in an electric arc. In plasma arc cutting plasma is created by ____. Combining acetylene with acetone.

Exposing cutting gas to radioactive material. Passing fuel gasses through a large orifice inside the torch. Superheating gas in an electric arc.

The most common plasma arc cutting torch uses _______. A pilot arc with the transferred arc process. The typical plasma arc cutting torch contains a ________.

Retaining cup copper electrode with a hafnium or thoriated tungsten insert gas swirl ring and nozzle. The term standoff distance refers to the _____. The most common plasma arc cutting torch uses _____.

A pilot arc with the transferred arc process. The typical plasma arc cutting torch contains a _____. Retaining cup copper electrode with a hafnium or thoriated tungsten insert gas swirl ring and nozzle.

Hold the torch directly over the point to be pierced at a 0 degree work angle and press the arc button. As soon as the jet passes completely through the work piece move the torch head in a smooth circle or pattern to produce the desired diameter or shape for the hole. INTRODUCTION TO CNC PLASMA ARC CUTTING.

Chapter 1 13 EARLY PLASMA CUTTING The plasma-arc cutting process saw its first commercial application in the early 1960s. Early plasma cutters were large slow and expensive. Consequently common applications for PAC consisted of repeating cutting patterns in a mass-production mode.

Plasma arc cutting is a very complex proces s that is used. In order to c ut steel and othe r metal s or sometim es other. Materials using a plasma torch.

In t his process an inert. This process heats up the gas to a temperature sufficient for it to transition into a plasma the fourth state of matter. As an electrical conductor the plasma can then form a circuit with the metal or other material that is being cut and this causes the plasma arc to be able to cut through the material.

The plasma arc cutting process is illustrated in Fig. The basic principle is that the arc formed between the electrode and the workpiece is constricted by a fine bore copper nozzle. This increases the temperature and velocity of the plasma emanating from the nozzle.

The same applies to water injection in plasma cutting. Water is injected through the injector into the plasma arc of the plasma cutter. The plasma arc is usually created when nitrogen is used as plasma gas as is the case with the majority of plasma cutters.

As soon as the water is injected into the plasma arc this leads to a high constriction. Plasma arc welding is an arc welding process wherein coalescence is produced by the heat obtained from a constricted arc setup between a tungstenalloy tungsten electrode and the water-cooled constricting nozzle non-transferred arc or between a tungstenalloy tungsten electrode and the job transferred arc. The process employs two inert gases one forms the arc plasma and the second shields the arc plasma.

The plasma arc technology was originally created for a faster way of welding war aircrafts like aeroplanes helicopters and even vehicles. Back then the process of joining metal together was taking too long especially during war times and hence the US defence department was looking for a more efficient way of welding and thats basically. Plasma cutting evolved from Tungsten Inert Gas TIG welding.

By constricting the nozzle opening gas velocity increased and effectively blasted molten metal away from the puddle created by the arc. Advances over the last 35 years such as nozzle design and cutting environment are covered. The plasma arc cutting PAC process is characterized by a transferred electric arc that is established between an electrode that is part of the cutting torch the cathode and another electrode that is the metallic workpiece to be cut the anode In order to obtain a high quality cut and a high productivity the plasma jet must be as collimated as possible and must have the higher.

That chemical reaction between the Oxygen in the plasma gas and the base metal helps to speed up the cutting process and improve the edge quality. But since Oxygen doesnt have the same reaction with Stainless Steel or Aluminum less expensive gases can be used for those metals like Nitrogen or compressed air which is mostly Nitrogen anyway. A pilot arc with the transferres arc process The most common plasma arc cutting torches uses retaining cup copper electrode with a hafnium or thoriated tungsten insert gas swirl ring and nozzle.

The ____________________ created by an arc is an ionized gas. The spacing between the electrode tip and the nozzle tip is called the ____________________. The nozzle is sometimes called the ____________________.

The plasma arc cutting process cuts metal by melting a section of metal with a constricted arc. A high velocity jet flow of hot ionized gas melts the metal and then removes the molten material to form a kerf. The basic arrangement for a plasma arc cutting torch similar to the plasma arc welding torch is shown in figure 10-71Three variations of the process exist.

Low current plasma cutting.