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Lincoln Electric IM822 Common Metals, Joint Types and Positions, For Gmaw MIG Process, Butt Joint

Models: IM822

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B-8

OPERATION

B-8

 

 

 

For GMAW (MIG) Process

1.Is most of my welding performed on 16 gauge and lighter materials?

2.Can I afford the extra expense, space, and lack of portability required for gas cylinders and gas sup- ply?

3.Do I require clean, finished-looking welds?

If you have answered yes to all the above questions GMAW may be the process for you. If you have answered no to any of the above questions, then you should consider using the FCAW process.

For FCAW (Innershield) Process

1.Do I want simplicity and portability?

2.Will welding be performed outdoors or under windy conditions?

3.Do I require good all position welding capability?

4.Will most welding be performed on 16 gauge and heavier, somewhat rusty or dirty materials?

5.Weld must be cleaned prior to painting.

COMMON METALS

Most metals found around the farm, small shop or home are low carbon steel, sometimes referred to as mild steel. Typical items made with this type of steel include most sheet metal, plate, pipe and rolled shapes such as channels and angle irons. This type of steel can usually be easily welded without special pre- cautions. Some steels, however, contain higher car- bon levels or other alloys and are more difficult to weld. Basically, if a magnet sticks to the metal and you can easily cut the metal with a file, chances are good that the metal is mild steel and that you will be able to weld the material.

Regardless of the type of metal being welded, in order to get a quality weld, it is important that the metal is free of oil, paint, rust or other contaminant’s.

JOINT TYPES AND POSITIONS

Five types of welding joints are: Butt Joint, Fillet Joint, Lap Joint, Edge Joint and Corner Joint. See Figure B.9.

Of these, the Butt joint and Fillet joint are the two most common welds.

Butt joint

Lap joint

Edge joint

Fillet joint

Corner joint

FIGURE B.9

Butt Joint

Place two plates side by side, leaving a space approx- imately one half the thickness of the metal between them in order to get deeper penetration.

Securely clamp or tack weld the plates at both ends, otherwise the heat will cause the plates to move apart. See Figure B.10.

Now weld the two plates together. Weld from left to right (if right handed). Point the wire electrode down in the crack between the two plates, keeping the gun slightly tilted in the direction of travel. Watch the molten metal to be sure it distributes itself evenly on both edges and in between the plates. This is referred to as the “pull technique”. On thin gauge sheet metal, use the “push technique”. See “Welding Techniques for GMAW (MIG) Process”.

FIGURE B.10

MIG PAK HD

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Lincoln Electric IM822 manual Common Metals, Joint Types and Positions, For Gmaw MIG Process, For Fcaw Innershield Process
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IM822 specifications

The Lincoln Electric IM822 is a cutting-edge multi-process welding machine that is making waves in the welding industry for its advanced capabilities and user-friendly features. Known for its versatility, the IM822 supports a variety of welding processes including MIG, TIG, and stick, accommodating a wide range of applications in both industrial and commercial settings.

One of the standout features of the IM822 is its inverter technology, which enhances both performance and efficiency. This inverter-based system allows the welder to output a stable arc, even in fluctuating input power conditions, making it ideal for use on job sites with inconsistent power supplies. The lightweight and compact design of the IM822 are direct benefits of this inverter technology, allowing for portability without sacrificing power.

The IM822 also boasts an impressive duty cycle, which allows for prolonged use without overheating. This characteristic is crucial for professional welders who require consistent, high-quality welds over extended periods. Additionally, it is equipped with an easy-to-read digital display that presents key information such as voltage and amperage settings, giving operators precise control over their work.

User-friendly interface is another hallmark of the Lincoln Electric IM822. The machine comes with intuitive controls that make it easier for both novice and experienced welders to navigate through settings quickly. With preset programs, users can select the most suitable parameters for specific materials and thicknesses, thereby enhancing productivity and reducing setup time.

Moreover, the IM822 excels in providing versatile welding capabilities, allowing it to handle various materials, including stainless steel, aluminum, and mild steel. The machine's robust construction further ensures durability, making it a reliable tool that withstands the rigors of demanding work environments.

Incorporating safety features such as thermal overload protection and an automatic shut-off system, the IM822 promotes safe operation, minimizing the risk of accidents. With a history of quality and innovation backing it, Lincoln Electric has positioned the IM822 as a go-to choice for welders seeking a modern solution that doesn't compromise on power or usability.

In conclusion, the Lincoln Electric IM822 combines advanced inverter technology, user-friendly operation, and robust welding capabilities, making it an excellent investment for professionals in the welding field. Whether for fabrication, repair, or maintenance applications, the IM822 stands out as a versatile and dependable welding solution.