Complete Engineering Drawings

[securitech]

I hope this issue was not covered before. I am looking for a standard that outlines the minimum requirements of a drawing in order for it to be acceptable for manufacturing.

I have the following Standards in-house:
-ASME Y14.5M 1994 Dimensioning and Tolerancing
-ASME Y14.24-1999 Types and Applications of Engineering Drawings
-ASME Y14.100-2004 Engineering Drawing Practices

These standards are good, and they have been instrumental in helping to establish and unify our drawing standards. However; they don't cover specifics, such as specifying material grade (Steel vs. Steel, 12L14), heat treating (Type,Rockwell, Depth), finish (type & thickness of plating), roughness (surface quality), etc.

I am looking for a standard that covers the overall scope of drawing requirements and/or specifies the minimum requirements.

Can anyone direct me to a standard that addresses this issue?

 

[vigildesign]

Try "Drawing Requirements Manual", Tenth Edition. Can be tailored to your needs.

Bound Edition: ISBN 1-57053-097-1
Loose Leaf Edition: ISBN 1-57053-098-X

 

[eliebl]

With respect to Pressure Vessels the material callouts, inspection and heat treatment requirements are guided by the codes. Where type of material is critical (pressure vessel) the more detailed the material specification the better.

EJL

 

[securitech]

Thanks! This looks like a very good reference. I will definitely be getting this.

Let me clarify my request a little. I am looking for a standard that could be referenced in a contract. For example, if we were to sub-contract the engineering of one of our new product lines to a third party engineering firm, we would want to make sure that the deliverables will meet the minimum standards required in order to produce the product.

Is this book a nationally (or internationally) recognized standard?

 

[vigildesign]

From the book:

FOREWORD
This Drawing Requirements Manual (DRM) contains instructions for the preparation of engineering drawings
based on ASME Y14.100 and various trade associations for commercial applications and MIL-DTL-31000 for the
Department of Defense (DoD) which extend beyond commercial applications. Under the requirements of MILDTL-
31000 is the selection of applicable specifications and standards prepared as a Technical Data Package
(TDP) which can contain both commercial and military specification and standards, the later requiring a waiver
for their use in accordance with the Acquisition Reform Policy Memo 98-2; (See PREFACE SECTION 2.) to
support all departments and agencies of the Department of Defense (DoD) policy of acquiring only those
engineering drawings and associated lists that are needed. The DRM also recognizes a number of internal
company practices not covered by any such documents.
While these practices are generally acceptable to Industry and to DoD, any given contract may invoke peculiar
customer requirements. In that case, the contract requirements must be given precedence.
Drawing examples are complete only to the extent necessary to illustrate the requirements of the accompanying
text..

Comments and suggestions for improving this DRM are welcome and solicited by the publisher.

JEROME H. LIEBLICH

Comment on the above by the author:

The question most often asked about the use of this DRM and can occur in any section being asked about, is
“What published government or industry specification or standard was the information or procedure that is
described in this DRM extracted or quoted from?” The answer is often “NONE”. The reason being that the
subject has been treated, too vaguely or has been left entirely to the discretion of the design activity. When that
occurs, the author has reviewed the particular procedure required to produce an acceptable drawing of at least
ten (10) major prime contractors’ internal Drafting Room Manuals and has presented in this DRM the majority
opinion of all to describe the subject. The fact that these contractors have done, and are doing business with
their commercial or government customers gives credence to their procedures.
A typical example would be the application of a Parts List (PL) whether it is integral or separate from the
drawing. Government and Industry specifications instruct and invoke the Parts List (PL) requirement but, do little
in the way of what the Parts List size and columns other than what columns are mandatory. This DRM has
established the information that is lacking but still makes the statement that the choice remains with the
individual company when no published government or industry specification or standard covers the procedure or
that the contract or purchase order specifically states a procedure to be used for that particular set of drawings.