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Advantages Of Adhesive Bonding

Advantages Of Adhesive Bonding

Adhesive bonding is also called gluing and involves applying layers of an adhesive between two items to be bound together. The type of adhesive used varies greatly depending on the purpose, material of substrates, and pricing. The adhesive could be inorganic or organic. The basic procedure for bonding items through this method includes various straightforward steps. First, the surfaces to be bound are cleaned to ensure efficiency of the adhesive. The adhesive is then applied to one or both layers and maybe allowed to rest for a short while. The surfaces are then put together with the glued sides facing each other. Depending on the type of adhesive, small amounts of heat may be necessary to complete the procedure. However, pressure is often sufficient to firmly bond the layers.

Lesser risks

Unlike welding, brazing and soldering, adhesive bonding makes no use of heat, electricity or fuel combustion. This implies that the method poses significantly lesser hazards as compared to alternatives. However, the method does have its own unique challenges and risks that aren’t present in other methods.

Neat

Adhesive bonding leaves the application of glue only on the surfaces that one intends. This is highly attributable to the slow and precise nature of the process as compared to its alternatives. Even though methods such as soldering might achieve this level of neatness, the possibility of formation of solder beads and solder balls is still relatively high.

Lesser requirements

Soldering iron, brazing and welding all require significant knowledge, skills and experience to carry out correctly. However, a simple guide from the internet would be sufficient to carry out adhesive bonding perfectly. The fewer requirements make this option viable especially for beginners who may not have the tools, space and knowledge required for other methods.

 

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Advantages Of Welding

Advantages Of Welding

Welding is a metal joining method used in place of soldering and brazing. However, unlike soldering and brazing causes the metal in the base joint to melt and then adds liquefied metal to create a pool that then cools and bonds metals. The basic process by which welding bonds two or more sheets of metal is known as fusion. Some common welding techniques include gas metal arc welding, flux core arc welding, electro-slag welding and submerged arc welding. The method has various advantages:

Versatility

Welding relies on melting the metal being joined to form a joint. This implies that it can be used on a wide range of surfaces and materials. This is at times a limitation with other methods such as soldering where the working temperature cannot exceed a given level. The heat produces by the welding flame is usually sufficient for any kind of work. This makes welding very versatile method with very few limitations.

Quality of bonds

The method relies on making a bond in metals from parts of the same metals. This results in joints that have extremely high structural, sheer and tensile strength. Sometimes, these joints are as good as the original piece of metal. Methods such as soldering and brazing introduce different metal alloys to the joint. This results in varied strength at the joint. For alloys such as those with high proportions of tin, the sheer strength of the joint is usually compromised. Of all metal bonding methods, welding produces the best quality joints, at least in terms of the strength of joints.

Less toxic

Welding only makes use of a flame to melt metals. While the surface being welded may have toxic substances, the process in itself is relatively safe. This, especially compared to methods such as soldering that use flux and solder.

 

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Advantages Of Brazing

Advantages Of Brazing

Brazing is similar to soldering except for the fact that the metal filler used has liquidus of more than 450 degrees Celsius. Soldering on the other hand uses solder that has liquidus of below 450 degrees Celsius. Brazing basically involves filling a joint between metals with molten metal filler where it then cools and binds the metals together. Like in soldering, the metal alloy used as filler is designed to have a lower melting point as compared to that of the metal it bonds. Brazing thus has very few advantages over soldering besides the obvious heat advantage. However, the method has various upsides over other bonding methods. These include the exact same advantages to soldering.

Precision

The tools used in brazing are usually handheld. Well, most of them. This implies that they are relatively small in size and can therefore be used for hand operations on small spaces and components. Methods such as brazing, welding and torching make use of larger equipments that are not suitable for use in such situations. For printed circuit boards for example, brazing is among the few viable bonding options.

Electrical conductivity of connections

Since brazing makes use of solder, which in itself is a mixture of different metals, the result of brazing is a connection with various desired traits. The first is that the connections can conduct electricity. This is especially important for brazing on electronics and printed circuit boards where movement of electrical current is important to functionality. Secondly, since the joints are essentially made of metal, the sheer and tensile strength is better than what would be formed with methods such as adhesive bonding. The connections can also be very neat and uniform. However, this depends largely on the skill and expertise of the operator than the method itself. Brazing however does have various glaring shortcomings and weaknesses that make it unsuitable or just plain unusable under various circumstances.

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Advantages Of Soldering

Advantages Of Soldering

Soldering is basically joining two metals or pieces together by use of molten solder. Solder on the other hand is the metal alloy commonly used to join work-pieces that include sheets of metal, wires, plumbing and other elements common in soldering. The alloy is designed to have a melting point that is lower than that of the components it joins. Soldering is just one among many methods that can be used to join metals together. Why would you want to use soldering instead of any other method? Well, here are a few reasons.

It is precise

The tools used in soldering are usually handheld. Well, most of them. This implies that they are relatively small in size and can therefore be used for hand operations on small spaces and components. Methods such as brazing, welding and torching make use of larger equipments that are not suitable for use in such situations. For printed circuit boards for example, soldering is among the few if not the only viable bonding option.

Quality of connections

Since soldering makes use of solder, which in itself is a mixture of different metals, the result of soldering is a connection with various desired traits. The first is that the connections can conduct electricity. This is especially important for soldering on electronics and printed circuit boards where movement of electrical current is important to functionality. Secondly, since the joints are essentially made of metal, the sheer and tensile strength is better than what would be formed with methods such as adhesive bonding. The connections can also be very neat and uniform. However, this depends largely on the skill and expertise of the operator than the method itself. Soldering however does have various glaring shortcomings and weaknesses that make it unsuitable or just plain unusable under various circumstances.

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