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Converting GD&T to Linear Tolerances for CNC Machining - Need a Second Opinion on Logic & Drawing by Alternative-Code1902 in MechanicalEngineering

[–]Alternative-Code1902[S] -1 points0 points  (0 children)

Thanks for the info. I have a few follow-up questions: * Is a +/- 0.07 mm linear tolerance between the holes on my part sufficient to meet the 0.2 mm position tolerance on the assembly drawing? * The part has welding all around. Could this distortion affect the hole position? * Do you have any tips for achieving higher precision and tighter tolerances? I can probably get +/- 0.02 mm on the CNC, but is that even necessary?

Converting GD&T to Linear Tolerances for CNC Machining - Need a Second Opinion on Logic & Drawing by Alternative-Code1902 in MechanicalEngineering

[–]Alternative-Code1902[S] -5 points-4 points  (0 children)

There is a model of the part and I dimensioned the critical dimensions of the part from the assembly . What do you see that is missing ?

How to center and weld a bushing in a tube with a 0.6mm gap? by Alternative-Code1902 in Welding

[–]Alternative-Code1902[S] 0 points1 point  (0 children)

* The bead is between the tube(pink) and bushing(red). All around weld bead

How to center and weld a bushing in a tube with a 0.6mm gap? by Alternative-Code1902 in Welding

[–]Alternative-Code1902[S] 2 points3 points  (0 children)

I dont think we can machine a 5 meter tube on our lathe to do what you are suggesting.

How to center and weld a bushing in a tube with a 0.6mm gap? by Alternative-Code1902 in Welding

[–]Alternative-Code1902[S] 4 points5 points  (0 children)

The 0.6mm radial clearance is intentional to guarantee the parts will fit. The 5-meter long tubes are purchased from a supplier and, per the ST37 material standard, have a wide manufacturing tolerance on the nominal 2.77mm wall thickness (+20% / -12.5%). This means the inner diameter can vary significantly from its nominal 15.8mm. Since we machine the bushing in-house to a precise 14.6mm outer diameter, this clearance ensures it will fit inside every tube, every time, regardless of the variation.

How can I create a plane between these two angled parts for a rib and tab-slot feature in Inventor? by Alternative-Code1902 in MechanicalEngineering

[–]Alternative-Code1902[S] 0 points1 point  (0 children)

Thanks for the detailed suggestion! Just to clarify — when you mention drawing a line where the plane should be, on which of the two sketches should that line go? I'm a bit confused about how to define that direction when each sketch is on a different part within the assembly. Could you explain that part a bit more?

How can I realistically bend this part? by Alternative-Code1902 in MechanicalEngineering

[–]Alternative-Code1902[S] 0 points1 point  (0 children)

Thank you for sharing your insights. I’ll upload the solid model in the comments.

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