A ask nearly a metal lathe and adjectives into the middle of the inside of a tube.?
The inside would be 1in then 2in then 1in. Is this possible and if so, any special tools needed?
Answers:
I doubt you can find a tube near a thick enough wall to licence this type of cutting, you will probably have to start beside a solid bar.
Assuming you start with a solid handrail of metal, the tools needed are: The lathe with accessories, a drill bit, an 'offset' boring block.
Yes it is possible.
Mount the bar in the lathe, drill a 7/8 hole (MOST bits drill a slightly oversize or 'clearence' hole for the size of bit.)
Use the boring pole to bring inside diameter to 1".
Insert bar to the correct point and them move outward slightly and make a cut to the failure point of the 2" section, move bar to starting point, move outward again and cut again; repeat until done.
Another method, which could be somewhat easier is to use 3 tubes. 1 - 2"ID full length, 2 - 1"ID and 2"+OD, 1 down each 1"ID section. Cut OD of closing 2 to the ID size of first piece using an "interference" fit.
Heat the larger tube and cool the smaller tubes. Insert the smaller tubes in the larger tube, and let warmth stabilize.
They SHOULD then be tight enough to stay together against a fine amount of force.
For better holding, or it they are a 'slip' fit, you could weld the tubes together at the outer ends and then 'face' them with the lathe.
Hope this help.
Yeah sure it's done like this,on the lathe the pipe spins and the other end holds the bit contained by the chuck stationary,then they turn the spinning pipe into the bit that is stationary and slowly bore into the bit using coolant unsurprisingly and thats it.My fathers a machinest,he wanted me to be one but i aint really into it.
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Answers:
I doubt you can find a tube near a thick enough wall to licence this type of cutting, you will probably have to start beside a solid bar.
Assuming you start with a solid handrail of metal, the tools needed are: The lathe with accessories, a drill bit, an 'offset' boring block.
Yes it is possible.
Mount the bar in the lathe, drill a 7/8 hole (MOST bits drill a slightly oversize or 'clearence' hole for the size of bit.)
Use the boring pole to bring inside diameter to 1".
Insert bar to the correct point and them move outward slightly and make a cut to the failure point of the 2" section, move bar to starting point, move outward again and cut again; repeat until done.
Another method, which could be somewhat easier is to use 3 tubes. 1 - 2"ID full length, 2 - 1"ID and 2"+OD, 1 down each 1"ID section. Cut OD of closing 2 to the ID size of first piece using an "interference" fit.
Heat the larger tube and cool the smaller tubes. Insert the smaller tubes in the larger tube, and let warmth stabilize.
They SHOULD then be tight enough to stay together against a fine amount of force.
For better holding, or it they are a 'slip' fit, you could weld the tubes together at the outer ends and then 'face' them with the lathe.
Hope this help.
Yeah sure it's done like this,on the lathe the pipe spins and the other end holds the bit contained by the chuck stationary,then they turn the spinning pipe into the bit that is stationary and slowly bore into the bit using coolant unsurprisingly and thats it.My fathers a machinest,he wanted me to be one but i aint really into it.
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