Received-SPF: none
 receiver=logan.com; client-ip=216.148.227.85; envelope-from=n3773@comcast.net
Message-ID: <008101c51ee7$81e4c7a0$f18c1518@rv8>
Reply-To: "kevin lane" <n3773@comcast.net>
From: "kevin lane" <n3773@comcast.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-765742@logan.com>
Subject: Re: [FlyRotary] Re: laser parts
Date: Tue, 1 Mar 2005 21:12:47 -0800
MIME-Version: 1.0
Content-Type: text/plain;
	format=flowed;
	charset="iso-8859-1";
	reply-type=original
Content-Transfer-Encoding: 7bit

my welder, tom Phillips, tells me that with both laser and water cut parts 
that the cut bends ever so slightly when the material exceeds 1/4" thick.  I 
couldn't see it, but he claims he had to touch up my port cutout slightly so 
the exhaust pipe would slide clear thru the part.  My idea of using the 
cutout slug to help shape the pipe to fit the hole got laughed at, he 
prefers a piece of bar stock in the vice and a hammer!  It took him 2 hours 
to fit the pipes and finish welding all the pipe joints, which had been 
simply tacked at this point.  I bolted the flanges to a huge piece of 
channel as a welding jig.
Kevin Lane  Portland, OR
e-mail-> n3773@comcast.net
web-> http://home.comcast.net/~n3773
(browse w/ internet explorer)
----- Original Message ----- 
From: <WRJJRS@aol.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Tuesday, March 01, 2005 5:09 PM
Subject: [FlyRotary] Re: laser parts


> They cost almost the same price as I was getting quoted for raw materials, 
> ($25/each), and knowing how hard stainless is to work with, an easy 
> decision.
> Kevin Lane  Portland, OR
>
> Kevin, Tell them nice work. The only reason to not go with the cheaper 
> laser cut is if you plan to machine the part after blanking. The laser 
> produces a "crust" on the cut as it's a heat process. The water jet is 
> like a continuous grinding process so it doesn't harden the edge. Since 
> you are just going to weld on a ex pipe the laser is a great choice. Parts 
> look great.
> Bill Jepson
>
>>>  Homepage:  http://www.flyrotary.com/
>>>  Archive:   http://lancaironline.net/lists/flyrotary/List.html