thermally cut the external fabric braid

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gdevine Power-User Join Date: Mar 2008 Location: Globaly - very close to the southern most point of Canada Posts: 445 Good Answers: 12	thermally cut the external fabric braid 04/30/2008 4:44 PM
	We are an industrial and aerospace hose manufacturer. I am looking for a process to thermally cut the external fabric braid from the end of the hose up to 2" from the end. Currently we use a hand held thermal wire stripper. What I need is more of an automatic bench process that will cut all around a 1" diameter and split. Beneath the fabric braid is a stainless steel braid that protects an internal tubing. This currently aids us in cutting the fabric braid thermally as it protects the internal tubing. A thermal application is key as it also welds the ends of the fibers in the braid to prevent fraying. Any thoughts???? __________________ -why bother doing it wrong when it will be anyway.......
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pantaz Guru Join Date: Feb 2008 Location: Van Nuys, CA Posts: 563 Good Answers: 33	#1 Re: thermally cut the external fabric braid 04/30/2008 6:35 PM
	How about a loop of nichrome wire? Attach some heat resistant handles and use it like a garrote. Some handy charts and formulae: http://www.heatersplus.com/nichrome.htm
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gdevine Power-User Join Date: Mar 2008 Location: Globaly - very close to the southern most point of Canada Posts: 445 Good Answers: 12	#3 In reply to #1 Re: thermally cut the external fabric braid 05/01/2008 9:42 AM
	Thanks! Not sure about the garrot idea, but the same principle could be used as a basis for a process method. The link has a lot of good information. __________________ -why bother doing it wrong when it will be anyway.......
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Electroman Guru Join Date: Jul 2006 Location: Dunstable, England Posts: 2821 Good Answers: 45	#2 Re: thermally cut the external fabric braid 05/01/2008 9:28 AM
	Hmmmm I think for Aerospace work you really should use a certified tool made for the job... maybe not a coil or garrote of nichrome resistance wire!! John. __________________ A little knowledge is a dangerous thing - Googling is far worse!
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BIG_Note Participant Join Date: Nov 2006 Location: Monaghan, Ireland Posts: 2	#4 Re: thermally cut the external fabric braid 05/01/2008 10:41 AM
	At work we use automated Hot knives for cutting fabric straps, similar to seatbelt fabric. The hot knife tends to melt the end of the fabric and leave a hard end, you are correct stating that the heat from the knife stops the fabric from unweaving but i suspect that you may need a cleaner softer edge. I would suggest that you look into useing an ultrasonic cutter as it will leave a much cleaner softer edge finish and still seal the woven fabric to prevent unravelling. The hot knifes that we use were supplied by a scotish company called Ardmel, we have used their products for over 20 years and are very pleased with their reliability. It would definitly be worth contacting them to see if they have a machine capable of carring out the process that you have described automaticly Check out their website http://www.ardmel-group.co.uk/ for their contact details
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BIG_Note (1); Electroman (1); gdevine (1); pantaz (1)

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