Today's Message Index:
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1. 07:42 AM - Re: Form blocks (Richard Girard)
2. 04:36 PM - Re: Form blocks (Richard Pike)
Message 1
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Frank, For the life of me I cannot find the little book on calculating
spring back that I was given when I worked in the Cessna tooling machine
shop years ago. My gut says that you need 4 degrees of compensation, but
without my spring back and bend allowance book. I did find this:
http://www.custompartnet.com/calculator/bending-springback
Using their calculator it comes out to 2.3 degrees
Rick Girard
do not archive
On Wed, Jan 14, 2015 at 8:52 AM, Frank <frank.goodnight@att.net> wrote:
>
> Making some form blocks and
> have forgotten what angle to cut
> the edges so the flanges will spring
> back and end up at 90 degrees. Using
> .025-- 6061T6. Would someone with
> A better (younger) memory please
> enlighten me. Thanks
> Frank
>
>
> Sent from my iPhone
>
>
--
Believe those who are seeking the truth, doubt those who find it.
-Andre Gide
Message 2
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>From Tony Bingelis' book "Sportplane Construction Techniques."
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Richard Pike
Kolb MKIII N420P (420ldPoops)
Kingsport, TN 3TN0
My soul shall be joyful in the LORD; It shall rejoice in His salvation. Psalm 35:9
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http://forums.matronics.com/viewtopic.php?p=437163#437163
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