Return-Path: <13brv3@bellsouth.net> Received: from imf16aec.mail.bellsouth.net ([205.152.59.64] verified) by logan.com (CommuniGate Pro SMTP 4.1.5) with ESMTP id 2625338 for flyrotary@lancaironline.net; Sun, 05 Oct 2003 21:32:29 -0400 Received: from rad ([68.212.15.208]) by imf16aec.mail.bellsouth.net (InterMail vM.5.01.05.27 201-253-122-126-127-20021220) with ESMTP id <20031006013234.VQQW24914.imf16aec.mail.bellsouth.net@rad> for ; Sun, 5 Oct 2003 21:32:34 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: I welded!!! Date: Sun, 5 Oct 2003 20:32:30 -0500 Message-ID: <005001c38ba9$b58c71c0$0201a8c0@rad> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0051_01C38B7F.CCB669C0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.4510 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 Importance: Normal In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_0051_01C38B7F.CCB669C0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable SPF sunblock 45 lotion will save your skin on those hot days when a long sleeved shirt is out of the question. =20 =20 That's good to know. I've joked about welding being a winter sport here = in Florida :-) =20 For aluminum, use a pure tungsten electrode (green stripe) that is sized = for the increased amperage needed. Use a larger diameter ceramic cup and increase argon flow. What machine and torch are you using? =20 =20 So far, I've only used the red stripe, thoriated tungstens. I've got a = good "calculator" that came from Miller, that shows the size of the tungsten, = and cup, and also the flow rate for different thicknesses, and types of = joints. =20 The machine is a Miller Dynasty 200DX, which is an AC/DC inverter type machine. The torch is an air cooled "17", which will be my amperage limitation. =20 A 400 degree preheat will help on large pieces or if you're down on amperage. =20 =20 Thanks for the tip. =20 Rusty ------=_NextPart_000_0051_01C38B7F.CCB669C0 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable Message
SPF sunblock 45 lotion will save your = skin on those=20 hot days when a long sleeved shirt is out of the = question.  
 
That's good=20 to know.  I've joked about welding being a winter sport here in=20 Florida :-)
 
For aluminum, use a pure tungsten = electrode (green=20 stripe) that is sized for the increased amperage needed. Use a larger = diameter=20 ceramic cup and increase argon flow. What machine and torch are you=20 using?  
 
So far, I've=20 only used the red stripe, thoriated tungstens.  I've got a=20 good "calculator" that came from Miller, that shows the size of the = tungsten, and cup, and also the flow rate for different = thicknesses,=20 and types of joints.  
 
The machine=20 is a Miller Dynasty 200DX, which is an AC/DC inverter type = machine.  The=20 torch is an air cooled "17", which will be my amperage=20 limitation.
 
A 400 degree preheat will help on large = pieces or=20 if you're down on amperage.  
 
Thanks for=20 the tip.
 
Rusty
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