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Elbow Manufacturing Process – Pipe Fittings

Elbow Manufacturing Process – Pipe Fittings


Welcome to Hardhat Engineer. I am Varun Patel. In this video, I am going to teach you about
Elbow manufacturing process. There are four well known Pipe Elbow Manufacturing
Process. Mandrel method, Extrusion Method, UO Method
and Hot Forming Method. Please subscribe to my channel to get regular
updates on new video and also like and share this video with your friends. If you have any question or want to know something
different please write in the comment box. If you are first time visitor, I have a free
gift at the end of the video so please do watch till end. Let’s start with Mandrel method. ELBOWS: Mandrel method (Hot Forming)
• One of the most common manufacturing methods for manufacturing Elbows from pipe is mandrel
method which is kind of hot forming methods. • In this method pipe is cut in pieces and
push with the help of hydraulic ram. Induction heating coil heat the pipe and,
it is pushed over a die called “mandrel” which allows the pipe to expand and bend simultaneously. • This method can be used to manufacture
a wide range of diameter of elbows. In this graphics, you can see that in first
step pipe is cut into the desired length. This cut pipe is than set on the mandrel die. In next step with the help of hydraulic rem
pipe is push on the die and at the same time induction coil heat the pipe pieces resulting
in the elbow. In next stage, elbow is sent for heat treatment
and machining before it offer for visual and dimension inspection. Extrusion Method
In cold Extrusion method, a pipe with the same diameter as finished product, is pushed
through a die and formed into its desired shape. Usually applied to stainless steel small to
medium sizes elbows. Here you can see that a cut pipe piece is
pushed into the cold bending die. Proper lubrication is required to avoid excessive
friction and protect surface finish of the final elbow. In next stage, elbow is sent for heat treatment
and machining before it offer for visual and dimension inspection. UO Method
UO method is used to manufacture medium size elbow, tee and reducers. Plate is cut out into a specially designed
shape, it is formed first into a U-shape using a die and then into an O-shape or into a tubular
form using another die, that is why this method is known as UO method. Once the fittings formed in tumbler shaped
it is welded from inside and outside of the closing seam. A very large size elbows are made of two separate
pieces of plate. But followed same process. Here you can see the same. In next stage, elbow is sent for heat treatment
and machining before it offer for visual and dimension inspection. Hot Forming Method
In a Hot Forming Die Bending method a Pipe is heated to forming temperature & formed
in die with specific shape, this process may be repeated as needed to obtain the required
shape, size and wall thickness. Usually applied to thick-wall items that cannot
be bent on a mandrel die Don’t forget to subscribe to my channel
to get regular updates on new video and also like and share my video with your friends. If you want to request a video, please write
in the comment below. And don’t forget to check free piping component
guide by visiting my website. See you soon goodbye take care.

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13 thoughts on “Elbow Manufacturing Process – Pipe Fittings

  1. dear sir please up lode sour materials and non sour materials used in oil and gas industry's.and how can we find sour materials and non sour materials. in fittings and pipes.

  2. How can I determine the length of the pipe to form the elbow, how do I know the starting diameter And the schedule of the pipe to form the elbow

  3. में ss के एल्बो बनाता हूँ किसी को चाइये तो बताना

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