This is a multipart message in MIME format.
--===============7212178029265906533==
boundary="----=_NextPart_000_045A_01D5C46F.76FEC640"
Content-Language: en-us
This is a multipart message in MIME format.
------=_NextPart_000_045A_01D5C46F.76FEC640
charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
I am not a metallurgist, but I am a retired aircraft structural engineer =
and I played one at work for 30 years. What was stated about hydrogen =
embrittlement of high-strength steel during chrome plating is true. The =
effects are mitigated by proper heat treatment after plating. Although =
I haven=E2=80=99t done any analysis of broken spokes, my empirical =
experience with stainless spokes has been that one broken spoke has no =
detectible reduction in the performance of the wheel, but more than one =
can produce vibration if they happen to be close to each other. One =
broken spoke will result in additional loading of adjacent spokes, =
eventually resulting in their failure . The vibration is most likely =
from the deformation of the wheel in the absence of the spokes.
=20
Steve Byers
HBJ8L/36666
BJ8 Registry
AHCA Delegate at Large
Havelock, NC USA
=20
From: Michael Oritt [mailto:michael.oritt@gmail.com]=20
Sent: Monday, January 6, 2020 8:02 AM
To: Mirek Sharp
Cc: Max Byers; Austin Healey
Subject: Re: [Healeys] Wheels/Tires
=20
I am not an engineer but I did play one when I was a kid with a Lionel =
train set.
=20
Best--Michael Oritt
=20
------=_NextPart_000_045A_01D5C46F.76FEC640
charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
<html xmlns:v=3D"urn:schemas-microsoft-com:vml" =
xmlns:o=3D"urn:schemas-microsoft-com:office:office" =
xmlns:w=3D"urn:schemas-microsoft-com:office:word" =
xmlns:x=3D"urn:schemas-microsoft-com:office:excel" =
xmlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml"; =
xmlns=3D"http://www.w3.org/TR/REC-html40";>
<head>
<meta http-equiv=3DContent-Type content=3D"text/html; charset=3Dutf-8">
<meta name=3DGenerator content=3D"Microsoft Word 12 (filtered medium)">
<style>
<!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;}
@page Section1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.Section1
{page:Section1;}
-->
</style>
<!--[if gte mso 9]><xml>
<o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext=3D"edit">
<o:idmap v:ext=3D"edit" data=3D"1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang=3DEN-US link=3Dblue vlink=3Dpurple>
<div class=3DSection1>
<p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I am not a metallurgist, but I am a retired aircraft =
structural
engineer and I played one at work for 30 years.=C2=A0=C2=A0 What was =
stated about
hydrogen embrittlement of high-strength steel during chrome plating is =
true.=C2=A0
The effects are mitigated by proper heat treatment after =
plating.=C2=A0=C2=A0 Although I
haven=E2=80=99t done any analysis of broken spokes, my empirical =
experience with stainless
spokes has been that one =C2=A0broken spoke has no detectible reduction =
in the performance
of the wheel, but more than one can produce vibration if they happen to =
be
close to each other.=C2=A0 =C2=A0One broken spoke will result in =
additional loading of
adjacent spokes, eventually resulting in their failure .=C2=A0 The =
vibration is most
likely from the deformation of the wheel in the absence of the =
spokes.<o:p></o:p></span></p>
<p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Steve Byers<o:p></o:p></span></p>
<p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>HBJ8L/36666<o:p></o:p></span></p>
<p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>BJ8 Registry<o:p></o:p></span></p>
<p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>AHCA Delegate at Large<o:p></o:p></span></p>
<p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Havelock, NC=C2=A0 USA<o:p></o:p></span></p>
<p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt =
0in 0in 0in'>
<p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Michael =
Oritt
[mailto:michael.oritt@gmail.com] <br>
<b>Sent:</b> Monday, January 6, 2020 8:02 AM<br>
<b>To:</b> Mirek Sharp<br>
<b>Cc:</b> Max Byers; Austin Healey<br>
<b>Subject:</b> Re: [Healeys] Wheels/Tires<o:p></o:p></span></p>
</div>
<p class=3DMsoNormal><o:p> </o:p></p>
<div>
<p class=3DMsoNormal>I am not an engineer but I did play one when I was =
a kid
with a Lionel train set.<o:p></o:p></p>
<div>
<p class=3DMsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=3DMsoNormal>Best--Michael Oritt<o:p></o:p></p>
</div>
</div>
<p class=3DMsoNormal><o:p> </o:p></p>
</div>
</body>
</html>
------=_NextPart_000_045A_01D5C46F.76FEC640--
--===============7212178029265906533==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
_______________________________________________
Archive: http://www.team.net/pipermail/healeys http://autox.team.net/archive
Healeys@autox.team.net
http://autox.team.net/mailman/listinfo/healeys
--===============7212178029265906533==--
|