Manual Of British Standards In Engineering Drawing And Design

[Prince Aboubakar]

Manualof Engineering Drawing: British and International Standards, Fifth Edition, chronicles ISO and British Standards in engineering drawings, providing many examples that will help readers understand how to translate engineering specifications into a visual medium. The book includes 6 introductory chapters which provide foundational theory and contextual information regarding the broader context of engineering drawing and design. The concepts enclosed will help readers gain the most out of their drawing skills. As the standards referred to in this book change every few years, this new edition presents an important update.

1. Design office management and organization2. Product development and computer aided design3. Design for manufacture to end of life4. Intellectual property and engineering design5. CAD organization and applications6. Principles of first and third angle orthographic projection7. Linework and lettering8. Three-dimensional illustrations using isometric and oblique projection9. Drawing layouts and simplified methods10. Sections and sectional views11. Geometrical constructions and tangency12. Loci applications13. True lengths and auxiliary views14. Conic sections and interpenetration of solids15. Development of patterns from sheet materials16. Dimensioning principles17. Screw threads and conventional representations18. Nuts, bolts, screws, and washers19. Keys and key ways20. Worked examples in machine drawing21. Limits and fits22. Geometrical tolerancing and datums23. Application of geometrical tolerances24. Maximum material and least material requirements25. Positional tolerancing26. Surface texture27. Surface finish and corrosion of metals28. 3D annotation and product data management29. The Duality Principle e the essential link between the design intent and the verification of the end product30. Differences between American ASME Y 14.5M geometric dimensioning and tolerancing (GD&T) and ISO/BS 8888 geometrical tolerancing standards31. Cams and gears32. Springs33. Welding and welding symbols34. Engineering diagrams35. Bearings and applied technology36. Engineering adhesives37. Related standards38. Production drawings39. Design for additive manufacture40. Drawing solutions

4. Now that we have new staff in the drawing office, I am finding it necessary to implement standards and procedures especially working with Inventor and Vault, which are so extremely finnicky in the way you do everything.

Their Standards accorded with ISO, except where ISO was stupid or unrealistic (e.g., plotting yellow lines on white paper), or didn't fit the company's engineering and manufacturing standards and practices.

4. If you never created a standard before, one of the most economical ways to approach it is to find one or more standards that seem close to what you want to accomplish, and then adapt them to your environment. But don't be '****' about it, b/c you can become a CONTROL FREAK about it if you really want to. No draftsman likes to be MICRO MANAGED if he's already competent and has his own style. Also, document management is a real touch subject, being a world of its own and subject to all kinds of problems, depending on the degree of control the company exercises over it's corporate slaves.

I use the Australian Standard AS1100 Technical Drawing. Part 101: General Principles. The Standard consist of a few separate parts. For example - Part 201: Mechanical Engineering Drawing. That covers the most of things I need to know in Mechanical Design and Drafting.

And than - there is a common sense stepping in. That's where you create a Title Block. While the Standard gives some guidance to the shape of TB - the recommendations are somewhat not very practical at times. But the TB is just cosmetic, really. All other drafting rules are adhered to the Standard.

We comply with ISO9001 & it was quite a torturous path to get there. I've attached the pages from the ISO spec which cover design to give you a start. We have a company procedure which defines the circumstances that require a drawing to be created, i.e., what creates the requirement, who authorises it, who approves it, who checks it, how is it issued, how is it updated. These actions all need to be recorded & you will be audited by ISO to check that the procedure is followed. Where necessary, the procedure refers to other related procedures, i.e., drawing change & other standards, i.e., BS8888 or whatever your region requires.

I don't think they were really asking for instructions on how to "draw" - but if you did include that in your ISO documentation then you are going to have to stick to it, so you should try to be as vague as they will let you be.

Same here, our design & drawing procedure mainly refers to other procedures, (drawing issue, change control etc.) & for drawing method refers to BS or ISO standards. The important thing for ISO9001 is being able to demonstrate that these procedures were followed when you are audited so you will need to show, usually by signing of drawings for accuracy & suitability. This can be on the drawing or, more likely nowadays, on a drawing control document. The method is up to you & probably already exists within your company even if it is on a casual basis but it needs to be recorded.

No draftsman likes to be MICRO MANAGED if he's already competent and has his own style. Also, document management is a real touch subject, being a world of its own and subject to all kinds of problems, depending on the degree of control the company exercises over it's corporate slaves.

Once again, I am pointing out anomalies (ie modelling not done in the company's previous way of modelling which now has to be highlighted and documented so new people can see what the company's previous way actually is)

I cannot however access that document so cannot read it. Like here in South Africa, with the South African Bureau of Standards, that type of document is not freely accessible. I do have the South African Document which I can read and use whatever might be useful in it.

I am sure it is not too dissimilar to the South African one. I know most standards in different countries are very similar and are based on one iso standard. I know when I was in Zimbabwe and got standards from the Zimbabwe Standards Association, they were almost an identical copy of the British Standard

One guy told me he read a study that says organizations should be dissolved (esp. corporations) after about a dozen years of existence, due to 'ingrown' bureaucrats and self-serving corporate policies based on shifted values (they say one thing but do another). He said the study showed that these organizations, as a general rule, lost track of their purpose in society, and turn all their efforts to preserving their existence and expanding their power base. Basically, they become social parasites. The late Chairman Mao had a somewhat effective remedy for that. Remember the 'cultural revolution'? I personally know some Chinese people who suffered under that dictatorship's policy. They escaped to the USA. But today they're lamenting that a similar bureaucracy has crept into this nation and nobody seems to notice!

so you will need to show, usually by signing of drawings for accuracy & suitability. This can be on the drawing or, more likely nowadays, on a drawing control document. The method is up to you & probably already exists within your company even if it is on a casual basis but it needs to be recorded.

Colin H. Simmons is an international engineering standards consultant and a member of numerous BSI and ISO committees dealing with technical product documentation and specifications. He is a former practising mechanical design engineer and author of many publications on engineering drawing, product specification and standards.

Provides important updates and some key reference tools on drawing abbreviations and acronyms that streamline the search process, enabling you to easily locate terms, symbols, and other relevant information.

Establishes symbols, rules, definitions, requirements, defaults, and recommended practices for stating and interpreting geometric dimensioning & tolerancing (GD&T), along with related requirements used in engineering drawings and models.

Offers symbologies, terminologies and concepts to enhance the understanding and abilities of those who create and use design documentation. Supplements Y14.5-2018 and addresses the needs of advanced manufacturing technologies including aerospace.

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An engineering drawing is a type of technical drawing that is used to convey information about an object. A common use is to specify the geometry necessary for the construction of a component and is called a detail drawing. Usually, a number of drawings are necessary to completely specify even a simple component. These drawings are linked together by a "master drawing." This "master drawing" is more commonly known as an assembly drawing. The assembly drawing gives the drawing numbers of the subsequent detailed components, quantities required, construction materials and possibly 3D images that can be used to locate individual items. Although mostly consisting of pictographic representations, abbreviations and symbols are used for brevity and additional textual explanations may also be provided to convey the necessary information.

The process of producing engineering drawings is often referred to as technical drawing or drafting (draughting).[1] Drawings typically contain multiple views of a component, although additional scratch views may be added of details for further explanation. Only the information that is a requirement is typically specified. Key information such as dimensions is usually only specified in one place on a drawing, avoiding redundancy and the possibility of inconsistency. Suitable tolerances are given for critical dimensions to allow the component to be manufactured and function. More detailed production drawings may be produced based on the information given in an engineering drawing. Drawings have an information box or title block containing who drew the drawing, who approved it, units of dimensions, meaning of views, the title of the drawing and the drawing number.

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