Return-Path: Received: from a34-mta01.direcway.com ([66.82.4.90] verified) by logan.com (CommuniGate Pro SMTP 4.3c2) with ESMTP id 768444 for flyrotary@lancaironline.net; Thu, 03 Mar 2005 11:28:42 -0500 Received-SPF: none receiver=logan.com; client-ip=66.82.4.90; envelope-from=jackbeale@direcpc.com Received: from jack (dpc691916001.direcpc.com [69.19.16.1]) by a34-mta01.direcway.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with SMTP id <0ICS001EVB2DHA@a34-mta01.direcway.com> for flyrotary@lancaironline.net; Thu, 03 Mar 2005 11:27:56 -0500 (EST) Date: Thu, 03 Mar 2005 11:27:30 -0500 From: Jack Beale Subject: Re: [FlyRotary] Re: hand router milling To: Rotary motors in aircraft Message-id: <00ff01c5200d$fb79e2e0$2619050a@jack> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Mailer: Microsoft Outlook Express 6.00.2600.0000 Content-type: multipart/alternative; boundary="Boundary_(ID_CHdgsPM/O3QoeX9n6HTc7Q)" X-Priority: 3 X-MSMail-priority: Normal References: This is a multi-part message in MIME format. --Boundary_(ID_CHdgsPM/O3QoeX9n6HTc7Q) Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: 7BIT Marv & Kevin, At Cincinnati-Milacron, we had some remarkably good results machining AL with two 'lubricants." We used 1. a water-based oil in a spray mist, and 2. we used compressed air. The oil mist was the standard method - a bit dirty, but it worked OK. A relatively high-speed air jet, on the other hand, directed at the point of contact between the cutter and the AL material was cleaner and allowed some pretty high-speed metal removal. Jack ----- Original Message ----- From: Marvin Kaye To: Rotary motors in aircraft Sent: Thursday, March 03, 2005 11:13 AM Subject: [FlyRotary] Re: hand router milling "Mark R Steitle" wrote: """ Kevin, I keep a block of bee's wax near the table saw to help with cutting aluminum. Also, I purchased a special aluminum cutter for my die grinder from the local machine tool supplier (Dixietool.com). It has many fewer, but deeper flutes than ones made for ferrous metals. It works really great on aluminum. My experience showed that it gives a much better finish than a carbide wood cutter does and it was easier to control (you still need to pay attention). """ The attack and relief angles on cutters meant for wood vary dramatically from those used on metal cutters. A [wood-cutting] router bit will get you through in a pinch, but a real milling cutter or burr will perform much better. I use WD40 for all my aluminum machining, works really well, although a bit messy. It's excellent for lubing taps when cutting aluminum. I buy it by the gallon and dispense it with a plastic squirt bottle. FWIW. >> Homepage: http://www.flyrotary.com/ >> Archive: http://lancaironline.net/lists/flyrotary/List.html --Boundary_(ID_CHdgsPM/O3QoeX9n6HTc7Q) Content-type: text/html; charset=iso-8859-1 Content-transfer-encoding: 7BIT
Marv & Kevin,
 
    At Cincinnati-Milacron, we had some remarkably good results machining AL with two 'lubricants." 
 
    We used 1. a water-based oil in a spray mist, and 2. we used compressed air.  The oil mist was the standard method  - a bit dirty, but it worked OK.  A relatively high-speed air jet, on the other hand, directed at the point of contact between the cutter and the AL material was cleaner and allowed some pretty high-speed metal removal.

Jack
 

 
----- Original Message -----
Sent: Thursday, March 03, 2005 11:13 AM
Subject: [FlyRotary] Re: hand router milling

"Mark R Steitle" <mark.steitle@austin.utexas.edu> wrote:

"""
  Kevin,
  I keep a block of bee's wax near the table saw to help with cutting
  aluminum.  Also, I purchased a special aluminum cutter for my die
  grinder from the local machine tool supplier (Dixietool.com).  It has
  many fewer, but deeper flutes than ones made for ferrous metals.  It
  works really great on aluminum.  My experience showed that it gives a
  much better finish than a carbide wood cutter does and it was easier to
  control (you still need to pay attention).
"""

The attack and relief angles on cutters meant for wood vary dramatically from
those used on metal cutters.   A [wood-cutting] router bit will get you
through in a pinch, but a real milling cutter or burr will perform much
better.  I use WD40 for all my aluminum machining, works really well, although
a bit messy.  It's excellent for lubing taps when cutting aluminum.  I buy it
by the gallon and dispense it with a plastic squirt bottle.  FWIW.

  <Marv>

>>  Homepage:  http://www.flyrotary.com/
>>  Archive:   http://lancaironline.net/lists/flyrotary/List.html
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