so about a month ago i decided to get a 200 hf tig machine and after much practice and trial and error i finally grew the ***** to make my first manifold. there are some local fabricators around my shop and i have been getting some good feedback about my welds tell my what you think.









the mani is a d-series with a t3 and 38mm external gate

 

There are some undercuts at the joint between the flange and the piping, the weld on the wg also looks a bit cold. The welds also look like they were very contaminated.
Good job regardless.

 

looks good hows the lil toaster holdin up?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GeeGee &raquo;</TD></TR><TR><TD CLASS="quote">There are some undercuts at the joint between the flange and the piping, the weld on the wg also looks a bit cold. The welds also look like they were very contaminated.
Good job regardless.</TD></TR></TABLE>
now that im looking at it your right they are undercut a bit and the weld in the wastegate was wirewheeled afterwards.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FaceTuned &raquo;</TD></TR><TR><TD CLASS="quote">looks good hows the lil toaster holdin up?</TD></TR></TABLE>
the little toaster is holding up fine i am very impressed with it. for a few years i have been using a lincoln 3200dx mig machine and i wanted to for a precision tig 185 but i decided to give the rescue toaster a try and i love it.

 

n00b question, what's it mean if a weld is undercut?

 

i believe it is when the weld is not level with the material surface it is a more concave surface or cut deeper in the material. dont quote me on this some one correct me if im wrong.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CivicVX94 &raquo;</TD></TR><TR><TD CLASS="quote">n00b question, what's it mean if a weld is undercut?</TD></TR></TABLE>
to put it short and simple, undercuts mean the surface of the weld is lower than the surface of the workpiece.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GeeGee &raquo;</TD></TR><TR><TD CLASS="quote">
to put it short and simple, undercuts mean the surface of the weld is lower than the surface of the workpiece.</TD></TR></TABLE>
thats what i was going for

 

Welds look dirty, clean the material better. I will say this though, as long as your not going to sell these, to you. Making a manifold for yourself is very good practice.

Also looks like you have gas coverage issues, specially around the wastegate elbow.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RCautoworks &raquo;</TD></TR><TR><TD CLASS="quote">I will say this though, as long as your not going to sell these, to you.</TD></TR></TABLE>
I'm just a bit curious regarding you meaning when you said this.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RCautoworks &raquo;</TD></TR><TR><TD CLASS="quote">Welds look dirty, clean the material better. I will say this though, as long as your not going to sell these, to you. Making a manifold for yourself is very good practice.

Also looks like you have gas coverage issues, specially around the wastegate elbow.</TD></TR></TABLE>
the material was cleaned very well, i had some contamination issues between the tungston and the filler rod. i was pulling the rod away from the gas coverage so it was getting contaminated.

 

I can tell you, that's alot more contamination than your gonna get from just pulling the filler out of the shield.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GeeGee &raquo;</TD></TR><TR><TD CLASS="quote">
I'm just a bit curious regarding you meaning when you said this. </TD></TR></TABLE>

He means, that if that's going on your own car then good for him, but the quality is certainly not there to sell to someone else. The contamination, the undercut, the inconsistency of the beads...it's just not the quality you charge someone for.

The pictures are of the pipe to flange welds....if you look at some of the pipe to pipe welds though, there are some pretty inconsistent welds there.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RC000E &raquo;</TD></TR><TR><TD CLASS="quote">
He means, that if that's going on your own car then good for him, but the quality is certainly not there to sell to someone else. The contamination, the undercut, the inconsistency of the beads...it's just not the quality you charge someone for.

The pictures are of the pipe to flange welds....if you look at some of the pipe to pipe welds though, there are some pretty inconsistent welds there.</TD></TR></TABLE>

Yep , specially with log manifolds. These are the first manifolds to crack due to the stress they are under.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RCautoworks &raquo;</TD></TR><TR><TD CLASS="quote">

Yep , specially with log manifolds. These are the first manifolds to crack due to the stress they are under.</TD></TR></TABLE>

i completly agree with what your saying i dont instend to sell any and as far as the contamination issue you can also add the tungston gets contaminated due to the fact the machine is a scratch start.