Cudos to Robin S. was Re: Home sheet metal stamping help needed!!! - rec.crafts.metalworking

Message from discussion Cudos to Robin S. was Re: Home sheet metal stamping help needed!!!
Path: g2news2.google.com!news2.google.com!news.germany.com!news.tu-darmstadt.de!newsfeed.freenet.de!border2.nntp.ams.giganews.com!nntp.giganews.com!newsfeed101.telia.com!nf02.dk.telia.net!130.227.3.89.MISMATCH!newsfeed1.uni2.dk!news.get2net.dk.POSTED!53ab2750!not-for-mail
From: J. Nielsen <mor...@post8.tele.dk>
Newsgroups: rec.crafts.metalworking,alt.machines.cnc
Subject: Re: Cudos to Robin S. was Re: Home sheet metal stamping help needed!!!
Message-ID: <4qqlh2hlf83t4dhv3g003s1rsc9abe7u20@4ax.com>
References: <1159316692.837045.309170@e3g2000cwe.googlegroups.com> <nejjh2lvp3s1k0it2ufs78g19hinuiud4a@4ax.com> <1159341245.094353.127900@m73g2000cwd.googlegroups.com> <nt1lh2hsn8cn2gg3j4p3l4vpfgddkq5p0r@4ax.com> <1159368816.613255.99190@d34g2000cwd.googlegroups.com> <1159371389.977840.203170@m7g2000cwm.googlegroups.com> <1159372377.637847.311700@m7g2000cwm.googlegroups.com> <1159374017.546580.52800@k70g2000cwa.googlegroups.com>
X-Newsreader: Forte Agent 3.3/32.846
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: quoted-printable
Lines: 27
Date: Wed, 27 Sep 2006 23:35:06 +0200
NNTP-Posting-Host: 195.82.211.148
X-Complaints-To: abuse@get2.net
X-Trace: news.get2net.dk 1159392914 195.82.211.148 (Wed, 27 Sep 2006 23:35:14 CEST)
NNTP-Posting-Date: Wed, 27 Sep 2006 23:35:14 CEST
Organization: get2net Internet Kunde

On 27 Sep 2006 09:20:17 -0700, "super88" <tdebo...@gatecom.com> wrote:

>Thanks Dan.
>I did do this with the first few, but didn't like the hardening caused
>by the weld. It can (has) be done that way. But it's only 1" deep,
>there must be a hillbilly way of doing this.

  =20
  It sounds as if you need to control the sheet at the corners only. You
don't need a pre-loaded binder as such, but some means to keep the
corners from wrinkling.  A  piece of  flat steel bolted diagonally
across each corner might just do the trick.  =20

  How's that for a hillbilly approach <g>

 The shape of the blank sheet is important; If you cut corners (pun
intended) the corners will draw/form more easily.  Remember, you'll need
*less* material in the corners than on the sides.

  If you do the draw in steps, you could try annealing the critical
parts (the corners) between the draws.  The sheet will work harden when
cold forming.  Heating to cherry red will normalize the material.
=20
 =20
--=20

-JN-