SECTION 18 − GUIDELINES FOR TIG WELDING (GTAW)

 

 

 

 

gtaw 7/2006

18-1. Positioning The Torch

 

 

 

 

 

 

!

Grinding the tungsten elec-

 

 

 

trode produces dust and fly-

 

 

 

ing sparks which can cause

 

 

 

injury and start fires. Use lo-

 

 

 

cal exhaust (forced ventila-

 

3

 

tion) at the grinder or wear an

 

 

approved respirator. Read

 

 

 

 

 

 

MSDS for safety information.

2

 

 

Consider using

cerium or

 

 

 

lanthanum based tungsten

 

 

 

instead of thoriated. Tho-

 

 

 

rium dust contains low-level

 

 

4

radioactive material. Proper-

 

 

ly dispose of grinder dust in

 

 

 

an environmentally safe way.

90°

 

 

Wear proper face, hand, and

 

 

body protection. Keep flam-

1

 

 

mables away.

 

 

1

Workpiece

 

 

 

 

 

 

Make sure workpiece is clean

 

 

before welding.

 

 

 

2

Work Clamp

 

 

 

Place as close to the weld as

10−15°

 

possible.

 

 

3

Torch

 

 

 

 

4

 

4

Filler Rod (If Applicable)

 

5

5

Gas Cup

 

 

6

Tungsten Electrode

°

6

10−25

 

Select and prepare

tungsten

 

 

 

 

according to Section 17.

 

 

Guidelines:

 

5 6

The inside diameter of the gas cup should be at least three times the tungsten diameter to provide ade- quate shielding gas coverage. (For example, if tungsten is 1/16 in diameter, gas cup should be a minimum of 3/16 in diameter.

1/16 in

3/16 in Bottom View Of Gas Cup

Tungsten extension is the distance the tungsten extends out gas cup of torch.

The tungsten extension should be no greater than the inside diameter of the gas cup.

Arc length is the distance from the tungsten to the workpiece.

Ref. ST-161 892

OM-4409 Page 77

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Miller Electric OM-4409 manual Guidelines for TIG Welding Gtaw, Positioning The Torch
Page 80 Page 82

OM-4409 specifications

The Miller Electric OM-4409 is a remarkable welding machine designed for both professional welders and enthusiastic hobbyists. Known for its reliability and efficiency, the OM-4409 stands out in the industrial landscape due to its advanced features and innovative technologies.

One of the main features of the OM-4409 is its impressive power output. With a rated output of 400 amps, it is capable of tackling a variety of welding applications, including MIG, TIG, and stick welding. This versatility allows users to switch between welding processes depending on the project requirements while ensuring consistent quality and performance.

The machine incorporates advanced inverter technology, which enhances its overall efficiency. Inverter technology allows for a compact design without sacrificing performance. The OM-4409 weighs significantly less than traditional transformer-based machines, making it more portable and easier to transport. Additionally, the inverter technology ensures that energy consumption is kept to a minimum, reducing operational costs.

Another notable characteristic of the Miller Electric OM-4409 is its user-friendly interface. The intuitive control panel provides easy access to settings and adjustments, allowing welders to fine-tune the machine to their specific needs. The digital display shows crucial parameters such as voltage, amperage, and wire feed speed, enabling welders to monitor their progress in real-time effectively.

Safety is paramount in industrial applications, and the OM-4409 does not disappoint. It is equipped with advanced safety features, including thermal overload protection and fault indication systems. These features ensure that the machine operates within safe limits, protecting both the user and the equipment.

The OM-4409 also boasts a robust build quality, designed to withstand the rigors of daily use in demanding environments. Its durable construction ensures longevity, minimizing maintenance and downtime.

In summary, the Miller Electric OM-4409 welding machine is a powerhouse that combines power, efficiency, and user-friendliness. With its inverter technology, versatility across various welding processes, advanced safety features, and robust design, it represents an excellent investment for any welding professional looking to enhance their capabilities. Whether for heavy-duty industrial applications or intricate metalwork, the OM-4409 delivers unmatched performance and reliability.
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