Haynes Forums  

Go Back   Haynes Forums > Haynes Roadster Forums > Chassis
FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Display Modes
  #1  
Old 11th August 2009, 08:13 PM
james3004's Avatar
james3004 james3004 is offline
Senior Member
 
Join Date: Oct 2007
Location: Haddenham, Cambridge
Posts: 480
Default opinions on welds

Please can you give me you opinions on the following welds?

I'm not really sure if i need to make them hotter, my welder is a clarke 150EN with argonsheild gas





Thanks
__________________
--- James ---

IVA passed 20 June 2017
Flickr Album
Reply With Quote
  #2  
Old 11th August 2009, 08:36 PM
Rik178m Rik178m is offline
Senior Member
 
Join Date: Feb 2009
Posts: 121
Default

I'm not sure about them. I had some welds looking fairly similar and the had no penetration. Checked them at work. Try breaking the welds with a lump hammer to check how deep the penetration is.

If you pause for a few seconds will you burn a hole through the steel? The heat pattern does look ok tho so I could very well be wrong
Reply With Quote
  #3  
Old 11th August 2009, 08:39 PM
james3004's Avatar
james3004 james3004 is offline
Senior Member
 
Join Date: Oct 2007
Location: Haddenham, Cambridge
Posts: 480
Default

thanks for the replies, I'm using 0.8mm, I was worried that they were to high i didn't even think that i would be caused by the wire thickness

I will do a destructive test another day.

Thanks again
__________________
--- James ---

IVA passed 20 June 2017
Flickr Album
Reply With Quote
  #4  
Old 11th August 2009, 09:00 PM
james3004's Avatar
james3004 james3004 is offline
Senior Member
 
Join Date: Oct 2007
Location: Haddenham, Cambridge
Posts: 480
Default

looks like i'm off to buy some 0.6mm wire then
__________________
--- James ---

IVA passed 20 June 2017
Flickr Album
Reply With Quote
  #5  
Old 11th August 2009, 09:33 PM
mr henderson mr henderson is offline
Senior Member
 
Join Date: May 2008
Location: Aylesbury
Posts: 364
Default

Quote:
Originally Posted by james3004 View Post
looks like i'm off to buy some 0.6mm wire then
My Haynes Roadster book is at the workshop, bit I seem to remember Martin Keene (in the section on welding) saying that .8 was the stuff to use
Reply With Quote
  #6  
Old 11th August 2009, 10:11 PM
mr henderson mr henderson is offline
Senior Member
 
Join Date: May 2008
Location: Aylesbury
Posts: 364
Default

Quote:
Originally Posted by Bonzo View Post
Any particular, technical reason as to why .8mm wire is superior to .6mm wire !!?

I think we need to bear in mind that MK engineering will be using industrial MIG welders.

My own set is a Cebora 180amp semi-pro MIG welder & I use .6mm wire full time.
You would need to ask Martin. In any case, I would assume that (and this of course depends on whether I am remembering correctly) he would have written it as advice to amateur builders (it's in the section on welding)
Reply With Quote
  #7  
Old 11th August 2009, 10:34 PM
drury318 drury318 is offline
Senior Member
 
Join Date: Jan 2009
Location: Scunthorpe
Posts: 145
Default

For years I used 0.6 wire, mainly on bodywork etc & upto building my chassis I would have said exactly the same as Bonzo, 0.6 all the time no probs.Then I ran out of wire whilst building my chassis & got some 0.8, what a difference.
I can turn the power down and wire speed down, I have less tendency to blow through on butt welds and generally everything is just a bit easier I find, it may be just me but I wish I`d tried it years ago
Dennis
Reply With Quote
  #8  
Old 11th August 2009, 10:45 PM
mr henderson mr henderson is offline
Senior Member
 
Join Date: May 2008
Location: Aylesbury
Posts: 364
Default

Quote:
Originally Posted by Bonzo View Post
I have just read the welding section of my first edition of the book.
No reccomenation of wire thickness is mentioned

I guess it must be a case of me using the welder wrong for the las 20 years, not to mention wasting good money on becoming an ASME coded welder.

I just feel sorry for all of my students that I have miss-lead
Well I did keep saying if I was remembering correctly! Must have not been (although I will have a look when I get to the workshop tomorrow (if I remember )
Reply With Quote
  #9  
Old 11th August 2009, 10:59 PM
Chris Gibbs's Avatar
Chris Gibbs Chris Gibbs is offline
Senior Member
 
Join Date: Jul 2009
Posts: 168
Default

It's on page 144 (0.8)

I think that you should try both and see which gives you the best result or you feel more comfortable with. It's a pretty good feeling when everything clicks and you know that your welds are good.

Those welds look pretty good to me James

Cheers

Chris
Reply With Quote
  #10  
Old 11th August 2009, 11:20 PM
james3004's Avatar
james3004 james3004 is offline
Senior Member
 
Join Date: Oct 2007
Location: Haddenham, Cambridge
Posts: 480
Default

I think i'm gonna try 0.6 wire to see if i feel more comfortable and confident with the welds produced, I'd rather they were flatter then at least i know they are penertrated well and won't have to worry as much about the weakening when it comes to grinding them off
__________________
--- James ---

IVA passed 20 June 2017
Flickr Album
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT +1. The time now is 12:42 AM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.