ACME threads

[mahimetal]

How can I calculate the flat size of minor or major diameter in ACME threads???

Regards.

 

[Clyde38]

See Machinery's Handbook.

[link

http://www.linkedin.com/in/clydehancock

]

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[mahimetal]

Sorry ,I completely forgot to mention that the i need to calculate the flat size for ACME thread gauges.The machinery handbook contains information about ACME thread,not the GAUGES.

 

[KENAT]

Perhaps consult a relevant standard then such as:

http://catalog.asme.org/Codes/PrintBook/B15_1997_Acme_Screw_Threads.cfm

Posting guidelines faq731-376

http://eng-tips.com/market.cfm?

(probably not aimed specifically at you)
What is Engineering anyway: faq1088-1484​

 

[mahimetal]

Tnx dear KENAT.I looked in the ASME standard,B1.5 1997,
But there was nothing explaining the calculation method of ACME thread gauges flat size.

 

[KENAT]

Hang on, by flat size do you meant the flats at the crest and trench of the threads - or are you talking about rolling the gauge from a flat piece of material or something?

If the former, I'm surprised if it's not in the standard - at least implicitly.

Posting guidelines faq731-376

http://eng-tips.com/market.cfm?

(probably not aimed specifically at you)
What is Engineering anyway: faq1088-1484​

 

[mrainey]

If your time is valuable, software is available that will make those calculations quickly and accurately.

Software For Metalworking

http://closetolerancesoftware.com