signatures required for approval on Engineering drawing? 1

[Steven K]

What are the standards for signatures on a Eng. drawing?
Is there a certain amount and who?

Thanks.

 

[XL83NL]

What does your QMS or quality manual prescribe? That's where I would look for such requirements. Not sure if particular drawing standards like ASME Y-.. dictate these things, since I'm not familiar with those ASME Y-standards.

Huub

 

[IRstuff]

The default would have been 2 to 3, but we've not had any drawing reviewers in the traditional sense in a long time.
> the originator
> a peer or manager
> a reviewer

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[ctopher]

It's always good to have 2 or more to look at a drawing. Always human errors.
Check out ASME Y14.100, Sect 4

ctopher, CSWP
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[BrianE22]

In the old days it was just the draftsman and the engineer. Later, the need for a manufacturing engineer to sign it was needed.

If your company doesn't have specific rules then I doubt there is any standard you have to follow.

 

[drawoh]

Steven K,

It depends on the company and the department. You really ought to have a standard that dictates what each signature means. You also need formal quality control standards for your drawings. Without them, design and drawing checking is futile.

Drawing checking has been discussed in other forums...

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[li]thread1103-193286[/li]
[li]thread765-194599[/li]
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--
JHG

 

[Jboggs]

The only standards that matter are those required and enforced by your employer. After all, they are the ones that will pay for the reviews and will suffer the costs of errors or non-compliance. That is, of course, unless you might be under some personal liability.

 

[SWComposites]

For an aerospace structural part drawing, you should have the following signatures:
Design engineer
Drawing checker
Design lead
Stress engineer
Stress lead
M&P engineer
Manufacturing engineer
And for certain parts:
Lightning safety engineer
Fire safety engineer

And they all should actually review the drawing in detail.

Sigh, too little of this happens now.

 

[GregLocock]

The easy answer is took up what is defined in your ISO 9000 procedures. If you aren't ISO compliant then perhaps you have an internal procedure. I'm not saying ISO is great, or prescriptive, but it is at least documented.

Cheers

Greg Locock


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[mfgenggear]

@Steven K
what certification does the company have?
NAD Cap
ISO9001
ASME
eg

that will be the driver what are the minimum requirements for engineer procedures.
if it's commercial work only one signature is require, but I would recommend two
prepared, and a checker, try to minimize mistakes.

military contracts depends on the certification of the company, but can be prepared, eng check, mfg engineering, quality, metlab, projects, and on.

 

[0707]

Yes I agree this matter shall be stated in your quality certification.

luis

 

[CWB1]

Historically four have been required at most companies, tho smaller ones over-reliant on CAD do less today. Typically there's a draftsman, a checker, an engineer, and an engineering approval/manager needed to release a print.

 

[MGZmechanical]

I think at least two: reviewed and approved.

 

[drawoh]

MGZmechanical,

What does "reviewed" mean?

--
JHG

 

[MintJulep]

Although not directly drawing standards the following speak to the design reveiw process:

EN 50128:2011 - D.56
IEC 61160:2005 Design Review
IEC 62198:2001, Project risk management – Application guidelines

 

[FACS]

What are the standards for signatures on a Eng. drawing? [highlight #EF2929]There are none[/highlight]
Is there a certain amount and who? [highlight #EF2929]No and no one.[/highlight]

 

[Timelord]

FACS is correct. It all depends on what is required at your particular employer. For many years I was the principal engineer for an R&D project where I designed and had manufactured all of the required research equipment. I signed my own drawings, picked my own vendors, supervised the assembly and then ran the experiments under the direction of the principal scientist. Loved that job!

Timelord

 

[oldestguy]

How's come I don't see it mentioned that in some states a registered professional engineer has to sign any which involve public safety?
My stamp with seal still is in my drawer.

 

[Mohanlal0488]

I am a structural engineer working in a large global company where the design teams are largely mechanical engineers. I am the only structural engineer in the office and 1 of 4 in the company globally.

I have noticed that the professional engineer sign off is not as highly regarded in the mechanical engineering industry when compared to the civil industry. Most of the mechanical engineers I have interacted with don't even really bother with the registration process.

I guess it is down to the risk of the job. In general a civil engineering failure will have a far greater impact than most mechanical failures, not to say that there are not mechanical failures which could be catastrophic.

 

[Timelord]

Civil engineering generally requires a registered professional engineer to review and approve the drawings of public structures. This is a legal requirement in each state. Most other fields have no legal requirements so it depends on the QC setup where you work. I was a systems level engineer (mechanical/electrical) and I acquired my license in the 70's and at the time the license was not specific to any field. I carried that PE license my entire career and never stamped a single drawing, it just looked good on my resume. Been retired about 8 years now and never looked back.

Timelord