'08 09 diff casing

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Uploaded by on Aug 30, 2009

Machining of the FSAE at UCF differential housing. Programmed on CAMWorks and machined on a Topwell 3 axis CNC mill.

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Autos & Vehicles

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Uploader Comments (skapps)

  • No insert. The 3 'splines' provided the driving force to a Torsen diff. The diff was a cast steel unit so in order to obtain a nice slip fit, the three matching splines needed to be machined down slightly as well. Actually, the diff was machined first so we knew how far it needed to go to get a nice machined surface. Then transfer that sketch over to the housing part and provide a little clearance. We were shooting for as tight a slip fit as possible.

  • No coolant, the machine is open so it gets everywhere. I run air-blast to evacuate the chips. The only place where coolant could have been useful was on the contour pass on the inside with the 1/4" endmill (as seen in the picture at 3:40). The chips were so small, they stuck to anything that had a hint of oil on it. With the 3/4" endmill that was used for most of the part, I was running chip thicknesses around .005" so they had some mass and the air just shot them away.

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  • For the internal splines, is that some type of steel insert?

  • that is a pretty neat design. why weren't you guys using the coolant while machining that? it seemed like you were using a pretty fast speed there. was the finish on your part good?

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