welding variables Spp. d/fl

andsome · Mon Dec 15, 2014 7:44 am

Hello,
I have a couple of questions about variables which may seem stupid to you but I haven't succeeded googling them (I am not a welder)
First, what does Spp. stand for when referring to a technique variable "Spp. >+- 10%"

Second, what does d/fl stand for when rererring to electrical like "Power, speed, d/fl, distance"
may it be density/flow?

thank you very much

Mon Dec 15, 2014 2:57 pm

What type of welder have you got. A picture would help immensely, as things are often called different names but have a diagram that can explain.

andsome · Mon Dec 15, 2014 4:29 pm

No pictures were provided in this case - these abbreviations were listed within a table of variable welding parameters. It's a welding Code. I saw such characters in other weldings Codes thoughout the internet but with no reference to what it can mean to a non-pro. "Spp.>10" is listed in a technique-related row with such variables nearby as Load, Upset, etc, whereas the d/fl has something to do with electrical parameters.

Mon Dec 15, 2014 6:20 pm

What's the name of the code.

andsome · Tue Dec 16, 2014 5:38 pm

ASME Boiler and Pressure Vessel Code

Tue Dec 16, 2014 6:21 pm

ASME IV?

andsome · Tue Dec 16, 2014 6:23 pm

Section IX

Superiorwelding · Tue Dec 16, 2014 6:32 pm

andsome,
There are several of us who have copies of ASME 9 and can probably help you. Where in the code do you fine these? Pages and sections would help.
-Jonathan

andsome · Tue Dec 16, 2014 6:50 pm

Spp. in Table QW-262
Paragraph QW-410 .27

the d/fl is in Table QW-268
Para Qw409 .21

Superiorwelding · Tue Dec 16, 2014 6:59 pm

andsome wrote:Spp. in Table QW-262
Paragraph QW-410 .27

the d/fl is in Table QW-268
Para Qw409 .21

I left my code book at the shop, will look in the morning if someone does not answer first.
-Jonathan

Tue Dec 16, 2014 9:20 pm

When you say you are a "non welder" what exactly does that mean? Welding inspector? Engineer? Must be serious to be poking around in ASME 9. If not, there are a billion easier books out there.

taz · Wed Dec 17, 2014 7:00 am

This is a really strange question.
Both are very specific parameters:
spp refers to the outside surface velocity in friction stir welding
d/fl refers to the laser's spot and focal length in hybrid laser -GMAW welding.

What exactly are you trying to do here?

Wed Dec 17, 2014 7:04 am

Death Ray. Oblivious really. Hahaha

noddybrian · Wed Dec 17, 2014 10:25 am

@ welding mike - I like your thinking - that's nearly as good as the welding with the power of the sun post !
Could he be trying to find a way of fixing a " laser " to a sharks head for Dr Evil ? !!

Wed Dec 17, 2014 6:20 pm

Frickin lasers.....

MinnesotaDave · Wed Dec 17, 2014 8:32 pm

noddybrian wrote:@ welding mike - I like your thinking - that's nearly as good as the welding with the power of the sun post !
Could he be trying to find a way of fixing a " laser " to a sharks head for Dr Evil ? !!

Lazer headed sharks????

"We're gonna need a bigger boat."

Braehill · Wed Dec 17, 2014 9:36 pm

Have we got to the point that I need to break out my tinfoil hat?

Len

Wed Dec 17, 2014 9:54 pm

taz wrote:This is a really strange question.
Both are very specific parameters:
spp refers to the outside surface velocity in friction stir welding
d/fl refers to the laser's spot and focal length in hybrid laser -GMAW welding.

What exactly are you trying to do here?

taz,

Thanks for that! I have a friction-stir company next door (DAMN, THEY'RE LOUD!!!), and don't know enough about it to recognize "spp".

I love new knowledge!

Steve S

taz · Thu Dec 18, 2014 3:12 am

Otto Nobedder wrote:
taz wrote:This is a really strange question.
Both are very specific parameters:
spp refers to the outside surface velocity in friction stir welding
d/fl refers to the laser's spot and focal length in hybrid laser -GMAW welding.

What exactly are you trying to do here?
taz,

Thanks for that! I have a friction-stir company next door (DAMN, THEY'RE LOUD!!!), and don't know enough about it to recognize "spp".

I love new knowledge!

Steve S

Scienta est lux lucis (always wanted to say that

)

On a more serious note, although I am a welding engineer (who also likes to weld) my knowledge in friction stir welding is pretty basic since I have never used this process.
My field is mostly in petrochemical, pipeline and power industries with the more common welding processes so if you have a related question I would be happy to help if I know the answer.

GreinTime · Thu Dec 18, 2014 6:30 pm

Taz,

I noticed that you are from Athens according to your profile information. Small world, the owners of the truck stop I work at are all from around Athens as well (at least the old man and his brother are. One's son was born and raised here, the other grew up in Greece. Also, there is another guy from Navarrone (sp?) that works here with them as well.) I love hearing stories from home from them, and hearing about the differences between customs and cultures of here and over there.

Thu Dec 18, 2014 9:33 pm

taz wrote:...Scienta est lux lucis...

Okay, just HOW long have you been waiting to pull that one out of the cellar?

Love it!

Steve S

taz · Fri Dec 19, 2014 3:23 am

GreinTime wrote:Taz,

I noticed that you are from Athens according to your profile information. Small world, the owners of the truck stop I work at are all from around Athens as well (at least the old man and his brother are. One's son was born and raised here, the other grew up in Greece. Also, there is another guy from Navarrone (sp?) that works here with them as well.) I love hearing stories from home from them, and hearing about the differences between customs and cultures of here and over there.

It is a small world. I travel a lot from time to time due to work and although most of the time my schedule in these visits leaves very little if any spare time it is always nice to experience the differences in cultures.
For those that have never visited Greece: We are NOT like the guys in "My Big Fat Greek Wedding"

Otto Nobedder wrote:
taz wrote:...Scienta est lux lucis...
Okay, just HOW long have you been waiting to pull that one out of the cellar?

Steve S

A long, loooong time believe me. The first time I saw it was 4-5 years ago in a Pipeline magazine the company I work for has subscribed to. It has become one of my favourite quotes. I enjoy learning whether it is related to my work, new skills, new hobbies etc and have found that the source of that knowledge could be anyone or anything regardless of your current level.

Fri Dec 19, 2014 8:57 pm

Taz,

I see we have common ground! In the welding world, I'll take a minute to drop my hood and watch anyone weld, from a new-hire fresh from school to a 2nd career senior citizen. You never know what you can learn from anothers' technique.

Even my TV habits are about learning. I like History, industry, space, language, and culture programs. I even like food shows, if they focus on a culture.

If only everyone's idea of "I want more" referred to knowledge; We might not be in the state we're in.

Steve S