how to thread a 5/16 inch rod at both ends only

[Saravanan25]

------

hello ppl,

i am working on a project and i need a cylindrical rod threaded at both ends ( aluminum rod)

could anybody provide a G-code program to produce

5/16 inch aluminium rod 10 inch in length

i need the rod to be threaded at both ends.

thread up to 3 inch from each end.( which means 4 inch of smooth rod in the center)

Your Help Will be Much Appreciated.

Thanks
Regards

[Mitsui Seiki]

Mill or lathe?

[Saravanan25]

CNC Mill

i was told about G32 and G33 codes for threading

thanks for ur kind reply

it's an aluminum rod which need to be threaded at both ends to fit regular hex nut and wingnut for 5/16 inch

G-code programming

thanks
regards

[Saravanan25]

CNC LATHE,.....Sorry i mentioned CNC MILL in my previous post.

it has to be CNC LATHE since it involvees Threading.,.....

thanks
regards

[Mitsui Seiki]

Lathe,huh?
I'm a miller so I hope someone else can help you.
Sorry.

[Saravanan25]

If threading can be done with Mill...

Can u Kindly provide the G codes for the Specifications i mentioned before...

Please...Sorry for the Confusion

Assume any Feed Rate and RPm for now

thanks
Regards

[Mitsui Seiki]

A thread 3 inches long is best done on a lathe.

This is the mill code.

%
O0000
(PROGRAM NAME - THREAD)
(DATE=DD-MM-YY - 24-01-08 TIME=HH:MM - 12:12)
N100G20
N102G0G17G40G49G80G90
(Thread Mill)
N104T3M6
N106G0G90G54X-.2563Y0.S3000M3
N108G43H3Z.25
N110Z.1
N112G1Z.0139F6.
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N330X-.1473Y.0521Z-2.9861I0.J.1563
N332G40X.0854Y.2416Z-3.I.2718J-.096
N334G1Z.1F6.
N336G0Z.25
N338M5
N340G91G28Z0.
N342G28X0.Y0.
N344M30
%

[Andre' B]

Originally Posted by Mitsui Seiki A thread 3 inches long is best done on a lathe.

Cut threads 5/16 diameter and 3" long is best done with a die head, in which case a lathe or mill would work fine.

[Mitsui Seiki]

Of course,you're right.I never thought of that.

[Saravanan25]

if that's possible ...can somebody provide me with a complete G code for this following sequences

a cylindrical aluminum rod 1 inch diameter with a length of 10 inches

the same rod to be threaded with a 5/16 inch drill bit at both ends

from each end up to 3 inches to be threaded

4 inch of smooth surface in the middle of the cylindrical rod

thanks again....

Any help will be much appreciated...( doesn't matter mill or lathe)

thanks again regards

[Mitsui Seiki]

Is this what it should look like?

[Andre' B]

Originally Posted by Saravanan25 a cylindrical aluminum rod 1 inch diameter with a length of 10 inches

You started with a 5/15 diameter now it is 1" in the center, got any more surprises, like maybe one side is a left handed thread?

By the way 3 + 3 + 4 is 10 inches.
Saying you want 3 inches of thread means 3 inches of useable thread.
If you want cut threads you can either have 3 inches of thread on each end or 4 inches of smooth in the center but not both on a 10 inch part. Even more true now that there is a shoulder.

May I suggest a design change.
Make it in three parts. The center 1" diameter 4 inches long with a tapped hole in each end. Then the two ends can be cut from threaded rod and screwed into the center part with some thread lock stuff.

Aluminum 5/16-18 fully threaded rod.
http://www.mcmaster.com/ Part number 94435A342 3 foot 94435A361 for 6 foot. Put the part number into the search box.

Now you are in Canada and McMaster does not seem to be shipping to Canada anymore for some reason but I will leave that solution up to you.

So long for about 12 hours.