Different types of welding in pdf

In this position, both the piece and the weld lie vertically or nearly vertically. When welding is done vertically, the force of gravity pushes the molten metal downward and therefore has a tendency to stack. To counteract this, you can use an upward or downward vertical position. To check it in an upward vertical position, point the flame upward, placing it at an angle of 45 degrees to the piece. In this way, the welder will apply metal from the lower parts of the workpiece to weld toward the force of gravity.

In this type of welding position, welding is performed from the bottom of the joint. It has the most complex and difficult position to work with. The 4G and 4F positions are for groove and fillet welds. In the overhead position, the metal deposited to the joint leads to a hole on the piece, occurring in a bead with a higher crown. To avoid this, keep the molten puddle small. If the weld puddle becomes too long, eliminate the flame for a moment in order to allow the molten metal to cool.

The application of welding is so different and large that it would be no exaggeration to say that there is no metal industry and no branch of engineering that does not make use of welding in one form or another namely automobile industry, shipping, aerospace, and construction.

It is majorly used for fabrication. As you know now, Welding is a strong joining process in which two parts of metal together form one part by heating the metals to their melting points. Some types of welding are made by machines and need costly specialized equipment. Welding is a faster method related to riveting and casting.

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Enter your email address. Sign Up. Saif M. He completed his engineering studies in and is currently working in a large firm as Mechanical Engineer. He is also an author and editor at www.

This is the great piece of information, Thank you so much for sharing the tips are really helpful. Notify me of follow-up comments by email. Notify me of new posts by email. This site uses Akismet to reduce spam. Learn how your comment data is processed. And also you can download the PDF file of this article at end of it. What is Welding?

Contents show. Welding Machine. Types of Welding Processes 3. MIG Welding. Commonly, tee joints are prepared with grooves, until the base metal is thick. But, again you will a drawback in the tee joint, which is lamellar tearing. It is caused by the limitation experienced by the joint. If you want to handle this, you will need to place a stopper to prevent joint damages. Following are examples of tee joint welding. It is almost similar to the tee joint welding, the only difference is that in the position of the metal plates.

These joints are some of the common types in the industries of sheet metals, such as in the manufacture of boxes, frames, and other applications. The drawbacks like lamellar tearing, incomplete penetration, porosity, slag inclusion, etc will occur in the corner joint.

A small variation can be applied to reduce the appearance of these defects. Variations like grooving welded metal and using an open corner joint rather than a closed corner joint. Following are the typical examples of corner joints. Applying the welding joints in industries can be more economical and requires less labor and less material. And also the efficiency of the welded joint is higher than the riveted joint.

So now, we hope that we have clear all your doubts about Welding Joints. If you like this post then please share it with your friends. And download the free PDF file of this article by clicking here. Email Address. A welding joint refers to the arrangement or configuration of two metal plates that will fit tightly together. Following are the 5 main types of welding joints: Butt joint welding, Lap joint welding, Edge joint welding, Tee joint welding, and Corner joint welding.

He is a mechanical engineering student, he likes to write about engineering stuff and he is really interested in learning about new technology in machines. Notify me of follow-up comments by email. Notify me of new posts by email. This site uses Akismet to reduce spam. Learn how your comment data is processed. What is Welding Joint? By using Exothermic Chemical Reaction, if the heat required for melting of plates is obtained called as Chemical welding process.

Without melting of parent material, if the joint is produced called a Non-Fusion welding process. Joining of two metals at room temperature with the application of a large amount of pressure called cold pressure welding. Even though the resistance welding is classified under non-fusion Welding Process but it is a fusion pressure welding operation.

On the whole, these are the different types of Welding Process in detailed. I hope this article is helpful to you.

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