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In this article, we'll take a closer look at the advantages, disadvantages, and potential uses of various welding techniques in sheet metal fabrication.

Spot Welding:
* Provides an excellent finish quality.
* Requires specific equipment, preparation and fixturing.
* Welds are strong but not watertight.
* Limited to certain material thicknesses and part geometries.
* The most cost-effective and speedy welding option for large-scale projects.
* Ideal for constructing channels.

Tack Welding:
* A cost-effective method of joining two parts when a high-quality weld is not required.
* Not suitable for structural applications.
* Welds are not watertight.

Fuse Welding:
* Frequently used on steel or stainless steel parts.
* Can create watertight welds.
* Although not a cosmetic weld, can be made very thin and requires little or no cleanup.

Stitch Welding:
* Appropriate when a continuous seam is not required.
* Not watertight.
* Less expensive than a full seam.
* Low risk of part deformation due to minimal heat generated.

Plug Welding:
* High risk of deformation due to the amount of heat required.
* Time-consuming and difficult to clean.
* Not watertight.

Seam/Fillet Welding:
* Demands the highest level of cleanliness of all welding techniques.
* Produces a sturdy and watertight seal.
* Prone to deformation, depending on material thickness and seam length.

MIG welding:
* Faster than other arc welding methods, such as TIG welding.
* Can create watertight joints.
* Welding is not as clean as TIG welding, so not ideal for precision parts.

TIG welding:
* One of the most common welding methods.
* Slower and more expensive than other methods.
* Yields high-quality, strong, and clean welds.

In conclusion, understanding the different welding methods available and their unique strengths and limitations is critical to choosing the best one for your sheet metal fabrication needs.
    Moravce, Gorenjska - si


Welding processes can be quite complex, and it is no different when it comes to sheet metal fabrication. In this article, we will give you an introduction to the different welding methods that you may come across in a sheet metal workshop. In a future article, we will explore in greater detail the benefits, limitations, and potential uses of each method.

Spot welding involves compressing two sheets of metal together and then applying pressure and heat with copper electrodes to create a weld bead that joins the pieces.

Tack welding is a temporary welding process that is used to hold sheet metal parts in place until they can be permanently welded together. This is a common method of assembly and part preparation.

Fuse welding is achieved by heating two surfaces until they fuse together, with or without filler material.

Stitch (intermittent) welding involves applying short sections of weld (between 25 to 50 mm in length) spaced along the connection between two parts. A filler rod is typically used.

Plug welding involves filling a round hole or groove with a weld bead to join two parts or surfaces.

Seam/fillet welding is one of the most commonly used methods, and it can be achieved through arc welding, which uses a filler rod to create a continuous weld along the joint.

MIG welding is an arc welding method that is commonly used on large pieces of thick material. The electrode is a continuous, coiled wire that passes through a welding gun.

TIG welding is an excellent method for precision parts. It uses a tungsten electrode, and hand-added filler metal can be used to create the weld.

Understanding the basics of each method can help you determine which one is best suited for your project.
    Moravce, Gorenjska - si


I previous posts, I have made a general overview on occupational safety and health risks at a sheet metal workshop.

I will go in depth per type of risk in some future posts.

Note, that all what I will be describing may not be applicable to all workshops; and some risks are not that evident as others; some are subtle.

Before going into this in detail, just remember, that the use of PPE does not replace the need for safe work practices, such as proper tool handling, the use of guards on machinery, and regular maintenance of equipment.

It is also important to ensure that employees are properly trained on the proper use of machinery, on the use and care of PPE, as well as the hazards specific to their job tasks.

More in following posts.
    Moravce, Gorenjska - si


Continuing with Sheet metal workshop OS&H risks, when engineering controls cannot be implemented, or in addition to them, consider the following Personal Protective Equipment (PPE):

1. earplugs or noise-cancelling headphones, for workers exposed to loud noise

2. dust masks or respirators, for workers exposed to dust and fumes

3. safety glasses, goggles, or face shields, to protect eyes from flying debris

4. welding masks & filters (to protect eyes from heat, intense light and invisible radiation), for welders

4. gloves and arm guards to protect from cuts and burns

5. slip-resistant footwear to reduce the risk of slips and falls

6. laser glasses

Remember, PPE is not a substitute for a safe work environment, but rather a supplement to it.

Proper training, safety procedures and regular maintenance of equipment also play an important role in ensuring the safety of workers.
    Sentrupert, Dolenjska - si


I will provide some insights on typical Sheet metal workshop occupational safety and health.

I will start with an quick overview:

The risks include:

1. Noise exposure from power tools and machinery

2. Respiratory hazards from dust and fumes

3. Risk of cuts, lacerations, and punctures from sharp edges and tools

4. Risk of burns from hot metal and welding

5. Risk of slips, trips, and falls from cluttered work areas

To deal with these risks, engineering controls and the use of personal protective equipment (PPE) can be implemented.

Engineering controls:

1. Install noise-reducing barriers or enclosures around power tools and machinery

2. Implement a dust and fume extraction system to improve air quality

3. Install guards on machinery to prevent contact with moving parts

4. Provide proper lighting to reduce the risk of falls
    Moravce, Gorenjska - si