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Cylinder to Tangent surface Weld Help

Cylinder to Tangent surface Weld Help

Cylinder to Tangent surface Weld Help

(OP)
I am having trouble with the weld bead options in Solidworks. I need to test a hook and have to include the welds on the metal rod. This weld is somewhat unique because it is between one end of the rod curled around and welded further down to the side of the same rod. I have tried following the basic weld procedures in Solidworks but am faced with various errors each time. Any help would be appreciated.

RE: Cylinder to Tangent surface Weld Help

If the Weld function doesn't work for your situation, create a separate part (to represent the weld) using the regular sweep or extrude functions.

RE: Cylinder to Tangent surface Weld Help

(OP)
I was unsure about doing that because I am needing to run some tests on the hook to verify the strength of it because we've had some trouble with them breaking in the past. I am nervous about doing what you suggest because I am not sure how the material properties change between a simple extrusion and the material from the weld function. I'm fairly new to Solidworks so I appreciate the help.

RE: Cylinder to Tangent surface Weld Help

You can set the material properties of a part to whatever you want. The weld created by the weld tool is a separate part, however I do not know if it is treated differently when running FEA.

RE: Cylinder to Tangent surface Weld Help

(OP)
I just tested it and it looks like using the weld function to create a weld and actually creating one in a new part are treated differently. I was unable to get a successful FEA run. Any idea if it's even possible to get the weld I need in solidworks? I'm running 2007 SP4.0. Would a new version have that weld?

RE: Cylinder to Tangent surface Weld Help

Quote:

I need to test a hook and have to include the welds

It seems you are trying to setup an FEA. You will likely have to model the weld bead into your part and include any voids at the root of the weld. You will also have to figure out what the residual stresses remain from the welding process and differences in material properties in the HAZ.

I would strongly suggest that you also make an FEA model of every one of the hooks that have broken using actual geometry as it was in the broken part to establish a knockdown factor for the weld strength. And of course you need the loads when the hook broke.

I would also strongly suggest that you have a metallurgist look at any failed hooks to determine what the cause of failure was. It could be a manufacturing problem, fatigue or strength. Until you know that you are shooting in the dark.

You might get more specifics on the Cosmos/Simulation forum.

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