Plasma cutting torch guide for precise and affordable cuts

Plasma cutting torch guide for precise and affordable cuts

Soure: Depositphotos.com

Soure: Depositphotos.com

Plasma cutting process uses electrically conductive material using accelerated jet of hot plasma. Materials cut by the plasma cutting process includes Aluminium, copper, steel and brass, though other metals can also be cut. This method is used in various industries like automotive repair, welding, fabrication, industrial construction and scrapping. Plasma cutting has a wide usage in various large and small scale industries because of the speed, precision and lowest cost of operation.

The process of plasma cutting is done by creating an electrical channel using ionized gas called Plasma. From the plasma cutter, through the metal piece to be cut, thereby completing an electric circuit back to the cutter through a grounding clamp.

The process is done using a compressed gas blown through a focused nozzle with a high speed focusing on the material which is worked upon. Then an electrical arc is formed within the gas, between the work piece and an electrode integrated into the gas nozzle

The ionisation of gases occur due to the electrical arc and creates an electrically conducting plasma channel.When the electricity moves from the torch downwards, the plasma generates sufficient heat to melt the material.The high velocity plasma and the compressed gas blows hot molten metal to cut the metal.

Plasma cutting is an effective way of cutting thin and thick material, alike.

All plasma cutters come along with the torch head which helps in concentrating the heat to the metal. Plasma torch can be used in many ways. The commonest method is by dragging it. The torch is dragged along the metal to be cut. The tip of the metal need to be touched and gone. To keep the tip away from fusing the metal a standoff is required. Depending on the torch style the standoff needs to be decided.  Accurate cut needs a slower movement.  The stand offs or the drag cups will let us rest the torch on the metal while the cut line is followed. This improves the accuracy and also eases the cutting. If you need to use the torch without the cup it is better to use it by starting the cut at 45 degrees’ angle. The angles aids in blowing away the molten material from the cutting metal. Metals which are thin could be pierced easily and a straight pierce approach works. If an arc needs to be cut, an angle gives the required visibility.

Steel Tube

Soure: ebay.com

Soure: ebay.com

Measure the metal to be cut using a scale and mark the same using a line cutter. Mark all sides of the rod to be cut. Clean the torch head with a brush to ensure the torch head is clean and the flow is not hindered by any leftover metals. Use the torch guide to mark the sides of the metal to be cut.

Use the plasma cutter torch to cut the marked area by turning the road around. Cut all the sides using the same method. The torch guide lets you maintain the appropriate distance and the metal rod is cut precisely.

Steel Tubing notch

This tubing notch aids in cutting the cross section of the rod. The torch cutter guide helps in giving us the accurate measure for the cross section.

Galv Steel tubing

The existing torch guides are replaced with larger torch guides so as to guide the width of the tube. The guide is fitted using the screws so as to easily slide through and make a cut using the torch.

Benefits of Plasma Cutting

Speed of Cutting

Approximately 90% of the metal which are cut today is around 25mm thickness or lesser, and so the plasma has a significant advantage of speed.  The speed is twice as that of oxyfuel. The speeds increase as the thickness decreases and hence plasma is 12 times faster

Speed of Piercing 

Piercing is very important in many cutting applications. To pierce 15 mm thick metal it takes less than 2 seconds.

 Quality of Cutting.

Like Speed is important the quality of the cut is equally important. The cut quality which is resulted from plasma cutter is much better than any other mechanical cutters. Due to the cutting speed the heat transferred into the metal is reduced. Plate warping on thin metals is not an issue with the plasma cutter. The plasma torches are easier to handle and can be controlled easily. The torch offers visibility of the part to be cut. Which leads to improved quality of the cut.

Versatility

Plasma cutting torch has the ability to cut various types of metals. As the process of cutting is electric arc, cutting materials which are electrically conductive like aluminium, copper, steel, stainless steel, etc is easy. Plasma cutter torch helps in cutting many layers of sheets at the same time.

Safety

Plasma does not require open flame or flammable gas and is hence safer. The sue of the plasma cutting torch head focuses the heat to the metal and hence reduces greater danger.

Cutting Costs

Plasma cutter combines the properties of fast cutting speed, better cutting quality, high productivity, increasingly versatile, safe and lesser rework makes it the most cost effective machine. Plasma cutter helps many businesses to be more profitable.

Conclusion

Plasma cutting is the easiest and quickest way to notch tubing and angling metals. While joining tubes, a normal chop saw cannot be used to cut the required scalloped cut. Joint notchers need hole saws which are expensive and the precise settings which are not easy to perfect the first time round. Getting plasma torch accessories is a simple task. Stand offs or drag cups are great while working on large piece of metals. It’s always advisable to buy extra consumables for the torch as it might hinder the work if the tip blows off. Always check the tip, nozzle and electrode of the torch for wear and tear. Because when the parts wear off the arc is erratic and will cause greater issues.  The side of the tip gets blown out because of the worn electrode.

See Also:
Oxygen-acetylene torch: A checklist to choose the right one
All You Need To Know About Plasma Cutting And Gauging

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