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It is a layer of weld applied to base metal like butter on bread. Commonly used to join dissimilar metals that are not compatible to each other. Once the area is buttered a weld can be made using material that is compatible to the base metal and the butter. Or a layer of metal that protects the base metal from exposure to another element. Typical application might be a valve to be installed where only one area is exposed to an element that might corrode/destroy it such as salt water. It is used a lot on ships where making the whole part would be too expensive. Fabricate the item from steel, then butter the area/s that will be exposed to salt water with stainless steel. It can also be used where extra hardness or wear resistance is required such as cutting edges, plow blades, snow plow pads etc.

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What is difference between seam welding and spot welding?

The only difference between the two is that projection welding requires preparation of the joint members in the way of adding a preformed dimple or projection. Spot welding is used without such preparation to the joint members. it's just heat and pressure.


How to avoid surface concavity in autogeneous welding?

Do you mean your beads are concave and you would like them convex in appearance while autogenous welding is being done? Without knowing what metal you are welding or seeing the technique used I can only offer generalizations. It could be a lack of sufficient sulfur or improper travel speed. Without more info I'm only guessing.Which isn't good when it comes to welding.


What is back step welding?

Backstep welding is a technique to avoid distortion while welding on thin sheets. In the backstep technique, the general progression of welding may be left to right, but each bead segment is deposited from right to left. As each bead segment is placed, the heated edges expand, which temporarily separates the plates at B. As the heat moves out across the plate to C, expansion along outer edges CD brings the plates back together. This separation is most pronounced as the first bead. With successive beads, the plates expand less and less because of the restraint from the prior welds.


What is the welding cert roster code for welding?

roster welding


Difference between ERW and SAW welding?

SAW welding is a type of arc welding while ERW welding is spot or seam welding. SAW stand for submerged arc welding while ERW stands for electric resistance welding.

Related Questions

What is step back welding and why this technique applied?

step by step stich welding


When was Been Caught Buttering created?

Been Caught Buttering was created in 1991.


How can I create permanent jewelry using the technique of welding?

To create permanent jewelry using welding, you can use a technique called fusion welding. This involves melting metal pieces together to form a strong bond. You will need a welding machine, metal pieces to be joined, and proper safety equipment. Practice and precision are key to ensure a secure and lasting connection.


What causes of incomplete fusion or poor penetration in welding?

Incomplete fusion or poor penetration in welding can be caused by inadequate heat input, improper welding technique, improper preparation of the joint surfaces, insufficient welding current, incorrect welding speed, or using the wrong welding process for the specific material being welded.


What is buttering process in metal fabrication?

Buttering: the addition of material, by welding, on one or both faces of a joint, prior to the preparation of the joint for final welding, for the purpose of providing a suitable transition weld deposit for the subsequent completion of the joint. Simply it is weld build up of (one or both) base metal(s) before beginning to weld the joint itself. This can be done in order to make up for poor joint preparation as indicated previously, but also is done to minimize the effect of PWHT on a sensitive material or eliminate subsequent PWHT.


What do the numbers on a welding rod mean and how do they affect the welding process?

The numbers on a welding rod indicate its characteristics, such as the type of metal it is made of and its tensile strength. These numbers affect the welding process by determining the suitability of the rod for specific welding tasks, such as the type of metal being welded and the welding technique being used. Choosing the right welding rod based on these numbers is crucial for achieving a strong and durable weld.


Can brass be welded?

Yes, brass can be welded using various methods such as oxyacetylene welding, TIG welding, and brazing. The specific welding technique used will depend on the thickness of the brass and the desired strength of the weld.


What do the numbers on welding rods mean and how do they impact the welding process?

The numbers on welding rods indicate the strength and composition of the rod. The first two digits represent the tensile strength in thousands of pounds per square inch, while the third digit indicates the welding position. The higher the number, the stronger the rod. The numbers impact the welding process by determining the type of metal that can be welded, the welding technique required, and the overall strength of the weld.


It is possible aluminium to s.s.316 welding?

Yes, it is possible to weld aluminum to stainless steel (SS316) using a suitable welding process such as friction welding, explosion welding, or laser welding. Each method has its specific requirements and parameters for achieving a strong and reliable weld joint between the two dissimilar materials. It is essential to understand the properties of both materials and select the appropriate welding technique to ensure a successful bond.


Is buttering toast a physical or chemical change?

Physical change.


Name and explain the two methods of striking an arc in arc welding?

There is two technique of arc initiation, first TAPPING Technique and second SCRATCH Technique. TAPING Technique is generally use in GTAW and SCRATCH Technique is used for SMAW process.


What is the back step welding and why is this technique applied?

This technique involves a continual stalling of the forward travel motion by traveling backwards slightly, into the previous deposited weld. This technique has two particular functions; it helps improve the final microstructure, by reducing the solidification rate of the weld puddle and increases throat thickness.