The Elsmar Cove Business Systems and Standards Discussion Forums Computing Failure Torque for Helicoil Threads in 6061-T6 Aluminum
 Forum User Name Keep Me Logged In Password
 Register Photo Albums Blogs FAQ Registered Visitors Social Groups Calendar Search Today's Posts Mark Forums Read

 Elsmar Cove Forum Visitor Notice(s)

# Computing Failure Torque for Helicoil Threads in 6061-T6 Aluminum

 Elsmar XML RSS Feed Monitor the Elsmar Forum Sponsor Links Courtesy Quick Links Links Elsmar Cove visitors will find useful in the quest for knowledge and support: International Standards Bodies - World Wide Standards Bodies International Organization for Standardization - ISO Standards and Information Quality Digest

 Thread Tools Search this Thread Rate Thread Content Display Modes
Post Number #1
13th June 2012, 09:19 AM
 bills5 Total Posts: 2
Computing Failure Torque for Helicoil Threads in 6061-T6 Aluminum

Can anyone tell me how to compute the maximum allowable torque for a 4-40 helicoil (.112 nominal length) in 6061-t6 aluminum?

 Sponsored Links
Post Number #2
14th June 2012, 04:26 AM
 Stijloor Total Posts: 15,224
Re: Computing Failure Torque of 6061-t6 Aluminum Threads

A Quick Bump!

Can someone help?

Thank you very much!!
 Sponsored Links
Post Number #3
14th June 2012, 01:23 PM
 Mikishots Total Posts: 880
Re: Computing Failure Torque of 6061-t6 Aluminum Threads

Quote:
 In Reply to Parent Post by bills5 Can anyone tell me how to compute the maximum allowable torque for a 4-40 helicoil (.112 nominal length) in 6061-t6 aluminum?
Don't know about calculating it, but the website states that the maximum is 48 oz-in for a 4(.112)-40 Heli-coil insert.
Post Number #4
14th June 2012, 01:38 PM
 Jim Wynne Total Posts: 14,162
Re: Computing Failure Torque for Helicoil Threads in 6061-T6 Aluminum

Quote:
 In Reply to Parent Post by bills5 Can anyone tell me how to compute the maximum allowable torque for a 4-40 helicoil (.112 nominal length) in 6061-t6 aluminum?
Welcome to the Cove.

I don't think there's any way to calculate the value because of the variables involved--thickness of material, the integrity of the existing threads, proper insertion of the Helicoil, etc.
Post Number #5
14th June 2012, 01:53 PM
 bills5 Total Posts: 2
Re: Computing Failure Torque for Helicoil Threads in 6061-T6 Aluminum

i believe the 48in oz. given is the locking torque that the locking feature of the helicoil exerts on the inserted screw. (you'll notice that this number decreases with the number of insertions due to the fact the locking feature is spring-like and wears.
Post Number #6
14th June 2012, 06:29 PM
 Mikishots Total Posts: 880
Re: Computing Failure Torque for Helicoil Threads in 6061-T6 Aluminum

Quote:
 In Reply to Parent Post by bills5 i believe the 48in oz. given is the locking torque that the locking feature of the helicoil exerts on the inserted screw. (you'll notice that this number decreases with the number of insertions due to the fact the locking feature is spring-like and wears.
Agreed. I have also noticed that the chart only shows the torques for stainless steel - I missed that important note.

Lower Navigation Bar
 The Elsmar Cove Business Systems and Standards Discussion Forums Computing Failure Torque for Helicoil Threads in 6061-T6 Aluminum

 Bookmarks

 Visitors Currently Viewing this Thread: 1 (0 Registered Visitors (Members) and 1 Unregistered Guest Visitors)
 Thread Tools Search this Thread Search this Thread: Advanced Forum Search Display Modes Rate Thread Content Linear Mode Rate Thread Content: 5 : Excellent 4 : Good 3 : Average 2 : Bad 1 : Terrible

 Forum Posting Settings You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Emoticons are On [IMG] code is On HTML code is Off Forum Rules

 Similar Discussion Threads Discussion Thread Title Thread Starter Forum Replies Last Post or Poll Vote Douglas E. Purdy Various Other Specifications, Standards, and related Requirements 3 24th May 2013 01:41 PM jameslaz Manufacturing and Related Processes 4 30th September 2011 12:38 PM Murakami General Measurement Device and Calibration Topics 5 1st August 2008 06:15 PM Phil Fields General Measurement Device and Calibration Topics 11 29th November 2006 10:42 AM Cordon - 2007 Supplier Quality Assurance and other Supplier Issues 12 21st November 2006 10:29 AM

The time now is 02:48 AM. All times are GMT -4.
Your time zone can be changed in your UserCP --> Options.

 Contact Us - The Elsmar Cove Home Page - Privacy & DMCA/Copyright Information - Terms of Service - Top

 The Deming PDCA Cycle Implementing A Quality Management System FMEA Information APQP Information Auditing Information 8-D Problem Solving Statistics Error Proofing (Poka Yoke) Brainstorming Identifying Waste Pull Systems Lead Time Reduction Planned Maintenance Quick Setup Discovering Change Process Capability - Cp vs. Cpk Histogram Animation Process Loop Animation Taguchi Loss Function Fishbone / Cause and Effects Animation More Free Elsmar Files

NOTE: This forum uses "Cookies"