Draw from pipe

Roshi;

I would like to help but can you please rephrase the question

Thank u for responding

it is just like T-shape elbow but draw diameter is lesser for connecting to another pipe for existing pipe which is steel hallow.

Draw as in "pencil and paper", Acad or similar or draw as in stretch / deform ?

Use AutoCAD, Maybe a new version

Use AutoCAD, maybe a new version

Do you mean you need a 3-D model or simply a 2-D drawing?

Also, do you mean that all pipes have a 5mm wall thickness?

Also, do you mean the "T" has a horizontal member (top of "T") that has a 600mm ID and is one meter (1000mm) long, with a 200mm ID vertical member exiting through the center of the bottom of the horizontal member and is 50mm in length?

That would be relatively simple. In AutoCAD 3-D simply construct the two pipes as solid cylinders with OD of610mm and 210mm and use Boolean commands to form a "union". Do the same with the ID, form a union of two cylinders, 600mm and 200mm. Then use the Boolean command to subtract the ID "T" from the OD "T" after you have placed them carefully along centerlines. Hint: the ID "T" may extend more since you are removing their intersection, but the OD "T" must be exactly the length you desire, or you may trim it later. If you need a 2-D drawing simply construct it from you 3-D model using a layout page (ACAD 2000 or later) or "paperspace" (R14 or earlier).

If you are using ACAD 2-D or ACAD "Light" (2-D) it should still be easy to construct the views. What is the problem?

Would it look something like this?

Thank u very much

Exactly i am looking, but i need development of it in the 2D Autocad or else any other method to draw from pipe in practical by cutting(sizes for ths) it and draw by press.

Roshi,

This is really very simple. If you wish to make this by welding two pipe sections together then you must draw each section independently, then draw it as an assembly.

You must decide if you want the large pipe to have a 200mm hole and the small pipe to mate on the outside of the larger one, or if the large pipe has a 210mm hole and the small pipe fits inside the hole (and it must also be 5mm longer). Then draw your large pipe as a hollow cylinder and show a simple hole through the side on the centerline at the midpoint of the length. This hole will be either 200mm or 210mm in diameter.

Once you have decided that it is easy to show the small pipe with either a 305mm radius cut (outside fit) or a 300mm radius cut (inside fit) on one end, with the length (50 or 55mm) measured from the straight cut end to the nearest point (on centerline) of the radius cut. Then you may also place a dimension on the longer point so the fabricator knows the minimum stock length he can use.

Your part drawings should also include what material you want used. It should be the same material for both parts if you are welding.

On the assembly drawing you must specify what type of welding to use and show the weld bead location (inside, outside, or both). Welding symbols may be used and should be available in your AutoCAD. Specify if unground weld is acceptable or if weld should be ground to a minimum or maximum fillet. Depending on your application, you may choose to join the sections by brazing or adhesive bonding also.

There are many choices to be made. That is what makes you an engineer. Unless there is a code you must follow in your country or your industry, you decide what you think is best for your application.