It is currently Thu Mar 28, 2024 1:26 pm

All times are UTC + 1 hour


Forum rules


As this forum section can lead to overheated heads, this section is tightly moderated. At the sllightest suspection of a thread going into the wrong direction, action will be taken.



Post new topic Reply to topic  [ 39 posts ]  Go to page 1, 2, 3  Next
Author Message
 Post subject: OFF
PostPosted: Sat Jan 01, 2011 8:09 pm 
Offline

Joined: Wed Feb 13, 2008 5:47 pm
Posts: 131
.


Last edited by Marek on Tue Jul 22, 2014 6:38 pm, edited 2 times in total.

Top
 Profile  
 
 Post subject: Re: cilinder block T35-37
PostPosted: Sat Jan 01, 2011 11:40 pm 
Offline
User avatar

Joined: Thu Jan 12, 2006 9:18 am
Posts: 1008
Location: Netherlands, Nieuwegein
You asked about metal repairs, I posted this on my site (with photo's) in the news section on November 21, 2010 :

New repair method not involving welding!
Aranthes SA in Birsfelden Switzerland developed a new compound-sandwich technology to repair cylinder-blocks with heavy or small cracks. The technology comes from the aerospace industry.

The result is impressive and designed for a long time quality. Even difficult, almost hopeless cases with cracks in the valves area (below) etc. are now repairable.


Further information by

Aranthes SA
andrea.capra@aranthes.ch
Ahornstr. 9
CH-4127 Birsfelden
00 41 78 670 61 20

_________________
www.BugattiPage.com
www.BugattiRevue.com
www.BugattiAircraft.com


Top
 Profile  
 
 Post subject: Re: cilinder block T35-37
PostPosted: Sun Jan 23, 2011 3:18 pm 
Offline

Joined: Wed Feb 13, 2008 5:47 pm
Posts: 131
.


Last edited by Marek on Tue Jul 22, 2014 6:38 pm, edited 2 times in total.

Top
 Profile  
 
 Post subject: Re: cilinder block T35-37
PostPosted: Fri Jul 29, 2011 7:03 am 
Offline

Joined: Wed Feb 13, 2008 5:47 pm
Posts: 131
.


Last edited by Marek on Tue Jul 22, 2014 6:38 pm, edited 2 times in total.

Top
 Profile  
 
 Post subject: Re: cilinder block T35-37
PostPosted: Fri Jul 29, 2011 7:06 am 
Offline

Joined: Wed Feb 13, 2008 5:47 pm
Posts: 131
.


Last edited by Marek on Tue Jul 22, 2014 6:39 pm, edited 2 times in total.

Top
 Profile  
 
 Post subject: Re: cilinder block T35-37
PostPosted: Mon Aug 08, 2011 8:49 pm 
Offline

Joined: Wed Feb 13, 2008 5:47 pm
Posts: 131
.


Last edited by Marek on Tue Jul 22, 2014 6:39 pm, edited 2 times in total.

Top
 Profile  
 
 Post subject: Re: cilinder block T35-37
PostPosted: Mon Aug 08, 2011 10:16 pm 
Offline

Joined: Mon Oct 19, 2009 6:28 pm
Posts: 180
What are the patterns made from?
What type of iron are you casting the blocks from?

Fantastic work!


Top
 Profile  
 
 Post subject: Re: cilinder block T35-37
PostPosted: Tue Aug 09, 2011 5:27 am 
Offline
Site Admin
User avatar

Joined: Wed May 12, 2004 4:26 pm
Posts: 2620
Location: Reeuwijk, The Netherlands
Looks like a wax model. (and looks good)

_________________
Vive la Marque !!


Top
 Profile  
 
 Post subject: Re: cilinder block T35-37
PostPosted: Tue Aug 09, 2011 7:29 pm 
Offline

Joined: Wed Feb 13, 2008 5:47 pm
Posts: 131
.


Last edited by Marek on Tue Jul 22, 2014 6:39 pm, edited 1 time in total.

Top
 Profile  
 
 Post subject: Re: cilinder block T35-37
PostPosted: Fri Aug 12, 2011 5:50 pm 
Offline

Joined: Mon Oct 19, 2009 6:28 pm
Posts: 180
Hi Merick,
I am neither a metallurgist nor much of an engineer so my comments on alloys are very limited and based on general knowledge gained through reading or discussions with engineers rather than my own practical experience. I do however understand that currently there are 2 sets of common issues with some sets of blocks made in the past namely Porosity and hardness.

With porosity issue it is often only possible to see the faults in the casting once many hours of machining have been invested I would guess that the types of blow holes found in block castings often can be a result of sulphur present in cast iron which is not present in higher grades of iron and steel? (I know with steel forgings sulphur is removed at the foundry as otherwise it creates these areas of weakness in the metal cristals in a forging.)

I think linking this to the hardness issue is also important so you will want as hard a material avalable whilst it is still being possible to machine, to soft a material and whilst it machines easily it can then suffer terribly from valve recession over time.


Top
 Profile  
 
 Post subject: Re: cilinder block T35-37
PostPosted: Fri Aug 12, 2011 6:42 pm 
Offline

Joined: Sun Aug 16, 2009 3:17 am
Posts: 1041
Location: Baden-Baden Germany
one thing you do not like to have , is a hard cylinder block .
If you have hard spots or blow holes , the foundry made a mistake . And maybe the pattern is bad made or to old .
In 2011 it is not a problem to make a good block , but you have to use up to date technology .


Top
 Profile  
 
 Post subject: Re: cilinder block T35-37
PostPosted: Sun Aug 14, 2011 12:20 am 
Offline

Joined: Wed Feb 13, 2008 5:47 pm
Posts: 131
.


Last edited by Marek on Tue Jul 22, 2014 6:40 pm, edited 1 time in total.

Top
 Profile  
 
 Post subject: Re: cilinder block T35-37
PostPosted: Sun Aug 14, 2011 12:29 am 
Offline

Joined: Sun Aug 16, 2009 3:17 am
Posts: 1041
Location: Baden-Baden Germany
how much cost a block today , 5000 ?


Top
 Profile  
 
 Post subject: Re: cilinder block T35-37
PostPosted: Mon Sep 19, 2011 1:12 am 
Offline

Joined: Wed Feb 13, 2008 5:47 pm
Posts: 131
.


Last edited by Marek on Tue Jul 22, 2014 6:40 pm, edited 2 times in total.

Top
 Profile  
 
 Post subject: Re: cilinder block T35-37
PostPosted: Mon Sep 19, 2011 1:14 am 
Offline

Joined: Wed Feb 13, 2008 5:47 pm
Posts: 131
.


Last edited by Marek on Tue Jul 22, 2014 6:41 pm, edited 2 times in total.

Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 39 posts ]  Go to page 1, 2, 3  Next

All times are UTC + 1 hour


Who is online

Users browsing this forum: No registered users and 3 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron

Valid CSS :: Valid XHTML Copyright © 2007 by Bugattibuilder.com :: Disclaimer :: Contact :: Advertising possibilities

Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group