welding to casting or forging???
welding to casting or forging???
(OP)
I currenly design a lot of weldments using square tubing and fabricated brackets. I would like to create some molded shapes to simplify the fabrication process. I know that welding cast iron is not feasable, but can you weld cast steel easily??
I am thinking of a similar material situation that you would have when making a drive shaft assembly. A tube welded to a structural shape (yoke). My question is "what is the material and manufacturing process used to make that structural shape"? Is is cast, or is it forged... or something else? Please help.
I am thinking of a similar material situation that you would have when making a drive shaft assembly. A tube welded to a structural shape (yoke). My question is "what is the material and manufacturing process used to make that structural shape"? Is is cast, or is it forged... or something else? Please help.





RE: welding to casting or forging???
When you design a casting you should make your design with flowing lines and try not to design a fabrication.
Also consider that a mold is made in at least two parts and that you must allow for tapered surfaces.
RE: welding to casting or forging???
RE: welding to casting or forging???
Lets say that you have an eye on both ends. You could change the square tube to an āIā beam and blend it into the ends.
This would still work with other types of ends even if the other end is welded to another structure.
For the fab I would drill through the tube and weld in a heavy walled round tube that was chamfered on both ends to act as a weld prep, then weld on a cap if necessary.
RE: welding to casting or forging???
I like your first suggestion of casting it with a low carbon steel. I am in the process of quoting it now as cast steel. Tooling should be cheap too.
RE: welding to casting or forging???
RE: welding to casting or forging???
RE: welding to casting or forging???
Cast iron can be brazed. That was a how they made bicycle frames for about 100 years or more.
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RE: welding to casting or forging???
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RE: welding to casting or forging???
Mikevaughn,you can certainly consider the complete assembly to be made from a steel casting. the grade can be ASTM A27 which can be welded easily. You have shown one end of the component. do I assume that there is another eye at the other end? The length of the component and the wall thickness of the hollow tube that you desire.Perhaps if you provide some of these I may be able to help you cast one sample piece,as I am a steel casting foundryman.
RE: welding to casting or forging???