B-13

LEARNING TO WELD

B-13

 

 

 

Helpful Hints

1.For general welding, it is not necessary to weave the arc, neither forward or backward nor sideways. Weld along at a steady pace. You will find it easier.

2.When welding on thin plate, you will find that you will have to increase the welding speed, whereas when welding on heavy plate, it is necessary to go more slowly in order to get good penetration.

3.When welding sheet metal 16 gauge (1.5 mm) and lighter, heat buildup may cause part warpage and burn through. One way to eliminate these problems is to use the back-stepping method illustrated in Figure B.21.

First weld from A to B; then from C to A; then from D to C; then from E to D, and so on.

B A C D E

Back-Stepping

FIGURE B.21

Practice

The best way of getting practice in the four skills that enable you to maintain:

1.Correct welding position

2.Correct way to strike an arc

3.Correct electrical stickout

4.Correct welding speed

is to perform the following exercise.

For the PRO 100, use the following:

Mild Steel

12 gauge or 1/8 inch

 

(3.0 mm)

Electrode

0.035" (0.9 mm)

 

NR-211-MP

 

Innershield Wire

Voltage Setting “V”

D

Wire Feed Speed “oo”

3

 

 

Refer to Figure B.22.

1.Learn to strike an arc by positioning the gun over the joint and touching the wire to the work.

2.Position face shield to protect face and eyes.

3.Depress gun trigger, hold gun so contact tip to work distance is about 3/8 to 1/2 inch (10 to 12 mm) and the gun is at proper angle.

4.After you strike the arc, practice the correct electri- cal stickout. Learn to distinguish it by its sound.

5.When you are sure that you can hold the correct electrical stickout, with a smooth “crackling” arc start moving. Look at the molten puddle constantly, and look at the “ridge” where the metal solidifies.

6.Run beads on a flat plate. Run them parallel to the top edge (the edge farthest away from you). This gives you practice in running straight welds, and also gives you an easy way to check your progress. The 10th weld will look considerably bet- ter than the first weld. By constantly checking on your mistakes and your progress, welding will soon be a matter of routine.

Contact

Tip

ESO

Gun Angle

FIGURE B.22

PRO 100

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Lincoln Electric PRO 100 manual Helpful Hints, Practice
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PRO 100 specifications

The Lincoln Electric PRO 100 is a compact and versatile multi-process welder designed to meet the needs of both novice and experienced welders. Known for its robust build quality and advanced features, the PRO 100 is engineered for tasks ranging from light fabrication to heavy-duty welding projects.

One of the standout features of the PRO 100 is its multi-process capability. It can seamlessly switch between MIG, Stick, and TIG welding, allowing users to tackle various materials including aluminum, stainless steel, and mild steel with ease. This versatility makes it an essential tool for welding professionals and hobbyists alike, enhancing productivity and efficiency on the job.

The machine is equipped with Lincoln Electric's unique Auto-Set technology, which simplifies the setup process for users. By automatically adjusting the voltage and wire feed speed based on the selected material and thickness, it enables welders to achieve optimal results without extensive experience or technical knowledge. This feature not only saves time but also reduces the likelihood of mistakes, making it ideal for beginners.

Powering the PRO 100 is a reliable inverter-based technology that ensures smooth and consistent arcs. This technology not only enhances performance but also improves energy efficiency, making the machine more cost-effective in the long run. The compact design allows for portability, making it convenient for job sites where space may be limited.

The PRO 100 also boasts several safety features that protect both the user and the machine. It includes an overload protection system that prevents overheating, ensuring the longevity of the welder. Additionally, the welder features a rugged construction that can withstand demanding work environments, further enhancing its durability.

Furthermore, the PRO 100 is designed for user comfort and control. The intuitive interface and large color display provide clear readability of settings and parameters, allowing for quick adjustments. The adjustable wire feed speed and voltage settings give welders the flexibility to customize their welding experience.

In summary, the Lincoln Electric PRO 100 stands out in the crowd of welding machines for its multi-process capabilities, Auto-Set technology, and inverter-based power system. Its combination of portability, durability, and user-friendly features makes it an excellent choice for a wide range of welding applications, whether at home, in the workshop, or on the field. This well-rounded welder can help elevate the quality of the work for both the novice and the seasoned professional.
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