|Speedy Builder5||30/01/2019 19:05:23|
|1745 forum posts|
I am not promoting this site, neither dissing it, however the video of spring manufacture is more than interesting also look at the FAQs where spring design / specification is explained. Ps, click on the UK flag for English
|Nick Hulme||02/02/2019 11:19:28|
|674 forum posts|
I find an old copy of Machinery's Handbook more useful, it even gives you good starting points for mandrel size/finished diameter for a wide range of gauges of piano wire.
|Martin W||02/02/2019 12:23:46|
|787 forum posts|
Wasn't there an article in MEW sometime ago about springs, spring winding and calculations for achieving the required force, or have my grey cells finally petered out ?
|Neil Wyatt||02/02/2019 12:49:01|
15962 forum posts
A comprehensive series by Linton Wedlock in MEWs 234, 235 and 236.
|Ian Newman 1||26/02/2019 09:46:28|
|11 forum posts|
For small (model sizes) springs, the "standard" formulae do not work as they tend to be based on simple torsion rather than a helix
"The Model Engineer's Handbook" by Cain, or "Spring Design And Manufacture" (same author) are your friends in this task
All the best,
|John Purdy||26/02/2019 18:29:06|
159 forum posts
There was also a 10 part series in ME by Tubal Cain on spring calculations. It started in 1986, Vol. 157, #3783 an ran to 1987, Vol. 159, #3807. While I don't have his book from the Workshop Series I suspect that a lot of the material is the same.
|Howard Lewis||27/02/2019 17:20:23|
|1931 forum posts|
If you don't fancy designing and winding your own springs, Peterborough Society of Model Engineers members used to use Vincent Springs, who were fairly local.
I found designing springs frustrating. Since having arrived at a spring that would fit into the space, (Open and closed ) with the required rate, and provide the load, only to find that the wire would be overstressed. The next iteration would be within the stress, but would not fit; and so on. So found it quicker and easier to pass the job over to the experts!
Not too long ago, there was a good series on spring design, using graphs, in M E W, which would be useful.
|Neil Wyatt||27/02/2019 17:28:33|
15962 forum posts
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