Repair & maintenance: Tapered Wire

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Tapered Wire

Printed From: Yachts and Yachting Online
Category: General
Forum Name: Repair & maintenance
Forum Discription: Questions & tips on the subject
URL: http://www.yachtsandyachting.com/forum/forum_posts.asp?TID=11411
Printed Date: 14 Aug 25 at 9:17am
Software Version: Web Wiz Forums 9.665y - http://www.webwizforums.com

Topic: Tapered Wire

Posted By: Punky
Subject: Tapered Wire
Date Posted: 27 Mar 14 at 3:37pm

Hi,

Is it possible to taper 7*19 wire so that the outer six strands are peeled back and only the inner strand is left?

Replies:

Posted By: JimC
Date Posted: 27 Mar 14 at 4:37pm

I'm intrigued: why would you want to?

Posted By: Punky
Date Posted: 27 Mar 14 at 5:13pm

Just a work thing, nothing exciting. I need to use a 6mm cable, but want it to be thinner at the point of attachment. Loads are very low, so not really worried about breaking.

Posted By: JimC
Date Posted: 27 Mar 14 at 5:19pm

I've never seen it done. Difficult to imagine how it could be made presentable.I suppose you could peel back all the wires and cut them off then tape over the join, but you've already thought of that.

Posted By: Punky
Date Posted: 27 Mar 14 at 5:22pm

Yes, that's all I can think of. Sounds like a bit of a chore!

Posted By: mongrel
Date Posted: 27 Mar 14 at 5:22pm

Originally posted by Punky

I need to use a 6mm cable, but want it to be thinner at the point of attachment. Loads are very low, so not really worried about breaking.

Why does it need to be 6mm along its length but not at the terminations?

Posted By: Punky
Date Posted: 28 Mar 14 at 9:04am

A 6mm cable is about right for the weight I am trying to achieve, but the terminations on a 6mm cable are overly big.

Posted By: Noah
Date Posted: 28 Mar 14 at 9:18am

But tapering will compromise the overall strength... Unless you could somehow get the taper under the ferrule. No idea what that would do to the overall strength, but it might work.

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Nick
D-Zero 316

Posted By: JimC
Date Posted: 28 Mar 14 at 9:34am

How about just finishing the end with a single round clamp ferrule, and using some sort of keyhole affair to grip onto that - or if possible just thread the wire through a 6mm hole and then put the ferrule on? Or finishing off with a soft eye, not a hard eye. and filing the ferrule down so its not so obtrusive?
I wouldn't even consider a hand spliced eye: there are http://thevintageaviator.co.nz/reference/cable-splicing" rel="nofollow - people who still do it , but the only time I tried I'm sure I put every strand through the skin of one finger or another at least twice...

Posted By: Rupert
Date Posted: 28 Mar 14 at 12:55pm

No idea what this is for, but might you be able to use slimmer wire and then sleeve it to get the 6mm width?

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Firefly 2324, Puffin 229, Minisail 3446 Mirror 70686

Posted By: mongrel
Date Posted: 28 Mar 14 at 1:01pm

Originally posted by Punky

Hi,

Is it possible to taper 7*19 wire so that the outer six strands are peeled back and only the inner strand is left?

Why not use a 19 wire strand for the whole length then?

The section of rope around the eyes/terminations is one of the weak spots of a wire rope, as generally this is the tightest radius that the rope has to bend. The other weak points are the immediate section of rope entering & exiting the talurits / compression fittings.

I don't think reducing the cross sectional area of the rope around these areas is advisable.