×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Need assistance for a fabrication quote

Need assistance for a fabrication quote

Need assistance for a fabrication quote

(OP)
I have been challenged to produce a barge weighing 24000lbs at a cost of 13500USD.Material of construction is A36 plates.and estimated man hours is 320. The requirement is for 100 such pieces. I am a casting person but do occasionally take up such assignments to just keep me active.My question is,whether such a fabrication is possible at the costs mentioned.

My current exposure will be 13500 USD and I do not mind taking this risk to learn something different.

I keep my fingers crossed regarding tooling,fixturing and perhaps a pressure testing rig to check for leakages.

RE: Need assistance for a fabrication quote

arunmrao;
About 2 years ago we had a fleet of coal barges fabricated by vendor, and some of the following questions come to mind. Do you have welding equipment in your shop to handle this type of fabrication work, like FCAW or GMAW? Do you have some in-house engineering expertise to produce detailed fabrication drawings for the barges? Also, does your customer have requirements for specifying a recognized ship building code (like ABS in the US) to construct the barges?

Most of the cost in addition to material will be engineering time, plate bending and welding with some outsourcing of nondestructive testing.

RE: Need assistance for a fabrication quote

(OP)
metengr,
I do not mind investing in some of the welding equipments. Yes I have inhouse expertise to produce detailed fabrication drawings. I just received a communication that the buyer would send a technical person to guide us through 2-3 units .

As I have some time to spare and also that I have enough of power and open space available in my foundry I thought of venturing out.Incidentally I also supply castings to this company.

RE: Need assistance for a fabrication quote

Your fabricated cost is approximately $(13500/24000) per pound... I wish you luck.

Dik

RE: Need assistance for a fabrication quote

dik,
Is that cost for the space shuttle?  

RE: Need assistance for a fabrication quote

I didn't have my calculator handy... about 60 cents/lb... which I think is likely 1/2 the cost... but I don't know...

As far as the shuttle goes... likely a fraction of the cost per pound!

Dik

RE: Need assistance for a fabrication quote

Quote (dik):

I didn't have my calculator handy

You're sitting in front of a computer!

RE: Need assistance for a fabrication quote

(OP)
Thanks mintjulep! I was looking out for some comparative numbers. The price of steel here is 760$/ton,however the fabrication cost is 333$/ton. The cost comes to approximately 1100$/ton,while the cutomer has offered a price of 1240$/ton. It was this back of the envelope calculation and my gut feeling that I can do it prompted me to accept the order.

Since the order is for 1000tons fabrication over a period of 1 year,any money that I could get is pocket money. My casting business supports all the infrastructure costs.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources