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Old 02-12-2018, 02:45 PM
OrenAir OrenAir is offline
 
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Default 10-13 reduced diameter on J-CHANNEL

Page 10-13, step 2. Use a reduced diameter female die on the J-Channel of the bottom skin.

The holes along the skin edge that are about 1/2 inch away from the J-Channel on the skin itself, or the stiffeners that connect to it? It seems like the wording wants the skin edge holes but I don't see why to use a reduced diameter. There is lots of room. What am i missing?
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Old 02-12-2018, 02:51 PM
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bkervaski bkervaski is offline
 
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Your die may be fine, I didn't have to use a reduced diameter every time they called it out, however, they are calling it out so you don't damage the part as there may be a slight curve from the forming process.

Edit: Kind of like fluting if you deform that curve accidentally with a die it could twist the skin.
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Last edited by bkervaski : 02-12-2018 at 03:40 PM.
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Old 02-12-2018, 03:35 PM
OrenAir OrenAir is offline
 
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So it's talking about the holes on the actual skin? They just seemed too far away to be "on the J-Channel". Maybe I'm overthinking it.
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Old 02-12-2018, 03:41 PM
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bkervaski bkervaski is offline
 
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Quote:
So it's talking about the holes on the actual skin? They just seemed too far away to be "on the J-Channel".
The F-01478 skin has a J-Channel formed along the edges., not the holes that F-01486C attaches to. They don't want you introducing any twist by the die deforming the curve from the skin to the channel.
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Last edited by bkervaski : 02-12-2018 at 03:51 PM.
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Old 02-12-2018, 03:59 PM
OrenAir OrenAir is offline
 
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Ah, so it's stay small to stay far away, not stay small to fit. Thanks Bkervaski
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