LEARNING TO WELD

3.The Correct Electrical Stickout (ESO)

The electrical stickout (ESO) is the distance from the end of the contact tip to the end of the wire. (See Figure 24.)

Once the arc has been established, maintaining the cor- rect ESO becomes extremely important. The ESO should be approximately 3/8 to 1/2 inch (10 to 12 mm) long.

Contact Tip

Wire Electrode

3/8 – 1/2” (10 – 12 mm) Electrical Stickout (ESO)

APRENDIENDO A SOLDAR

3.Punta Electrizada de Alambre (ESO) Correcta

La punta electrizada de alambre (ESO) es la distancia que hay entre el extremo de la punta de contacto y el extremo del alambre. (Vea la Figura 24).

Una vez que el arco se ha establecido, es muy importante mantener una distancia ESO correcta. La punta de alam- bre ESO debe ser de 10 a 12 mm de largo (3/8 a 1/2 pul- gadas) aproximadamente.

Punta de

Contacto

Electrodo de alambre

La punta electrizada de alambre (ESO) 10-12 mm (3/89-1/2 pulg.)

APPRENTISSAGE DU SOUDAGE

3.La bonne portée terminale

La portée terminale est l'écartement entre l'extrémité du tube contact et l'extrémité du fil. (Voir la figure 24)

Une fois que l'arc a été amorcé, il est très important de maintenir la bonne portée terminale. Elle doit faire envi- ron 3/8 à 1/2 po (10 à 12 mm) de longueur.

Tube contact

Fil-électrode

Portée terminale

de 3/8 à 1/2 po (10 à 12 mm)

FIGURE 24

The easiest way to tell whether the ESO is the correct length is by listening to its sound. The correct ESO has a distinctive “crackling” sound, very much like eggs frying in a pan. A long ESO has a hollow, blowing or hissing sound. If the ESO is too short, you may stick the contact tip or nozzle to the weld puddle and/or fuse the wire to the contact tip.

4.The Correct Welding Speed

The important thing to watch while welding is the puddle of molten metal right behind the arc. See Figure 25. Do not watch the arc itself. It is the appearance of the pud- dle and the ridge where the molten puddle solidifies that indicates correct welding speed. The ridge should be approximately 3/8” (10 mm) behind the wire electrode.

Most beginners tend to weld too fast, resulting in a thin uneven, “wormy” looking bead. They are not watching the molten metal.

Solidifying ridge

Molten puddle

FIGURA 24

La forma más fácil para saber si la punta de alambre ESO tiene la longitud correcta, es escuchando su sonido. Una punta de alambre ESO correcta tiene un sonido distintivo de “chisporroteo”, muy similar al que se produce cuando se fríen alimentos en una sartén. Una punta de alambre ESO larga tiene un sonido hueco o como de silbido. Si la ESO es muy corta, usted podría colocar la punta de contacto o la tobera en el charco de soldadura, y/o fusionar el alambre con la punta de contacto.

4.Velocidad Correcta de Soldadura

Mientras suelda, es importante observar el charco de metal derretido justo detrás del arco. Vea la Figura 25. No observe el arco directamente. La apariencia del charco y el reborde donde se solidifica es lo que indica la velocidad correcta de soldadura. El reborde detrás del electrodo tubular debe ser de 10 mm (3/8”) aproximadamente.

La mayoría de los principiantes tiende a soldar muy rápido, dando como resultado un cordón delgado, disparejo y con apariencia “ondulada”. Cuando esto sucede, significa que no están observando el metal derretido.

Solidificación del reborde

Charco de

 

 

 

 

 

 

soldadura

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FIGURE 24

La meilleure façon de savoir si la portée terminale a la bonne longueur est d'écouter le son émis. La bonne portée terminale émet un “crépitement” distinctif, tout comme les oeufs que l'on fait frire dans une poêle. Une portée terminale longue émet un son creux, un souffle ou un sifflement. Si la portée terminale est trop courte le tube contact ou la buse peut coller dans le bain de fusion et/ou le fil peut fondre sur le tube contact.

4.La bonne vitesse de soudage

Quand on soude, il est important d'observer le bain de fusion juste en arrière de l'arc. Voir la figure 25. Ne pas regarder l'arc lui-même. C'est l'aspect du bain et la vague de solidification qui indiquent la bonne vitesse de soudage. La vague doit se situer à environ 3/8 po (10 mm) en arrière de l'électrode.

La plupart des débutants ont tendance à souder trop rapidement, et il en résulte un cordon mince et irrégulier ressemblant à un ver. Ils ne regardent pas le métal fondu.

Vague de solidification

Bain de fusion

FIGURA 25

FIGURE 25

FIGURE 25

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Lincoln Electric MIG-PAK 10 manual Correct Electrical Stickout ESO, Punta Electrizada de Alambre ESO Correcta

MIG-PAK 10 specifications

The Lincoln Electric MIG-PAK 10 is a versatile and user-friendly MIG welding machine tailored for light industrial applications and DIY enthusiasts. This compact welder is designed for both professionals and hobbyists, offering a perfect blend of performance and portability. It is particularly suitable for welding light to medium-gauge steel, stainless steel, and aluminum.

One of the standout features of the MIG-PAK 10 is its economy of size without compromising on power. Weighing in at just around 40 pounds, it is easily transportable, making it a practical choice for on-site jobs or small workshops. Its compact dimensions allow it to fit into tight spaces, facilitating accessibility for various welding tasks.

The MIG-PAK 10 employs a built-in gas solenoid that facilitates gas shielding for improved arc stability and weld quality. It is compatible with both shielding gas and flux-cored wire, offering flexibility depending on the application requirements and working environment. This dual capability is particularly beneficial for outdoor welding, where wind can disrupt gas shielding.

Lincoln Electric has integrated an adjustable output that offers a wide range of voltage settings, allowing users to fine-tune their settings for different materials and thicknesses. This feature, accompanied by a smooth and stable arc, contributes to high-quality welds and ease of operation.

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In summary, the Lincoln Electric MIG-PAK 10 is a well-rounded MIG welder suitable for various welding needs. Its exceptional portability, dual wire feeding options, adjustable output, user-friendly controls, and sturdy construction make it a compelling choice for both beginners and professionals in the welding industry.