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Machinery and Localized Stresses #5099878 05/08/19 06:57 PM
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MolaKule Offline OP
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A basic rod and disk are forged and machined to make a wheel axle, with the rod at a right angle to the disk. The other end of the rod is splined inside the differential housing.

The disk is further machined and tapped to make a wheel hub.

It was later found that cracks were occurring where the rod meets the disk.


Supply the missing word:

A ___________ geometry at the rod-disk interface would have prevented cracks from forming.



Open to all.


"You ... sadist," said Mr Cummings, "you try to make people think." Ezra Pound (1885-1972)
Re: Machinery and Localized Stresses [Re: MolaKule] #5099888 05/08/19 07:06 PM
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carviewsonic Offline
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'tapered' is my guess..


'18 Impala
'05 Park Avenue
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'07 Honda Accord
'09 VStar 1300
Re: Machinery and Localized Stresses [Re: MolaKule] #5099897 05/08/19 07:17 PM
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CT8 Offline
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Fillet.


2015 F150 2.7
2018 F350 6.2
Re: Machinery and Localized Stresses [Re: MolaKule] #5099899 05/08/19 07:21 PM
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4WD Offline
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Radius

Re: Machinery and Localized Stresses [Re: MolaKule] #5099903 05/08/19 07:25 PM
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A_Harman Offline
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fillet


1985 Z51 Corvette track car
2002 Camaro Z28 LS1/6-speed
2001 Dodge Ram 2500 diesel
1972 GMC 1500 shortbed project truck
Re: Machinery and Localized Stresses [Re: MolaKule] #5099906 05/08/19 07:28 PM
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vw7674 Offline
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'radiused'

Re: Machinery and Localized Stresses [Re: MolaKule] #5099922 05/08/19 07:40 PM
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Imp4 Offline
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Not sure of the exact nomenclature you're looking for but you need a radiused transition at that location in order to prevent a localized stress riser.

Also, depending on the raw material being forged and the post forge quenching process, a tempering or solution annealing heat treatment will also aid in preventing cracking of the finished product.


2001 Mitsubishi Galant 2.4 - 165k+
Grandma's creampuff...
Re: Machinery and Localized Stresses [Re: MolaKule] #5099982 05/08/19 08:30 PM
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ctechbob Online Content
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Rounded?


2008 Acura TL Type S-155k*
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Re: Machinery and Localized Stresses [Re: MolaKule] #5100050 05/08/19 09:25 PM
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heynow Offline
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Filleted or radiused


1991 Acura NSX
2010 X5 35d twin turbo diesel
2005 BMW r1200GS
Re: Machinery and Localized Stresses [Re: MolaKule] #5100058 05/08/19 09:36 PM
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Langanobob Offline
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Radiused.

Re: Machinery and Localized Stresses [Re: MolaKule] #5100073 05/08/19 09:46 PM
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ag_ghost Offline
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isotropic?


Kevin
63 Galaxie 500, 390; dad bought it new...
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Re: Machinery and Localized Stresses [Re: MolaKule] #5100089 05/08/19 10:13 PM
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clinebarger Online Content
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Fillet Radius?


2001 Chevy Camaro L92/4L80E
2006 Chevy 2500HD LBZ/Allison 1000
2010 Toyota Corolla 2ZR-FE/U341E
2000 Toyota Avalon 1MZ-FE/A541E
Re: Machinery and Localized Stresses [Re: MolaKule] #5100098 05/08/19 10:32 PM
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TMoto Offline
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Fillet is my guess


Put 2 BITOGers together and you'll get 3 opinions
Re: Machinery and Localized Stresses [Re: MolaKule] #5100125 05/08/19 11:15 PM
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tcp71 Offline
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chamfered?


2016 F150 Eco: Edge 0w40
2005 Sienna 3.3: NAPA 5w30 syn. (varies)
Re: Machinery and Localized Stresses [Re: MolaKule] #5100133 05/08/19 11:26 PM
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scurvy Offline
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"generously filleted"


You are entitled to your own opinion but not your own facts.

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12 Mazda 5: Castrol Edge 0w20, FL910s
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