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Why work to a recognised standard when producing engineering drawings?
Wiki User
∙ 12y ago
The simplest answer is that working to a standard means that anyone can read the drawing.
If there is no standard the symbols used on the drawing (weld type and size, surface finish, even the dimensioning of the components) would vary from one drawing (or draughtsperson) to another and cause confusion.
Engineering drawings use a large number of symbols to denote operations and instructions (which reduces the time taken to draw them and the size of "paper" they're drawn on).
Imagine the potential problems if one person used a symbol to mean "weld" and another one used the same (or similar) symbol to mean "do not weld".
Wiki User
∙ 12y ago
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All the standard books
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A graphical language used by engineers and other technical personnel associated with the engineering profession. The purpose of engineering drawing is to convey graphically the ideas and information necessary for the construction or analysis of machines, structures, or systems. See alsohttp://www.answers.com/topic/computer-graphics; http://www.answers.com/topic/drafting-2; http://www.answers.com/topic/graphic-methods; http://www.answers.com/topic/schematic-diagram-graphic-arts. The basis for much engineering drawing is http://www.answers.com/topic/orthographic representation (projection). Objects are depicted by front, top, side, auxiliary, or http://www.answers.com/topic/oblique views, or combinations of these. The complexity of an object determines the number of views shown. At times, pictorial views are shown. See alsohttp://www.answers.com/topic/descriptive-geometry; http://www.answers.com/topic/pictorial-drawing. Engineering drawings often include such features as various types of lines, dimensions, lettered notes, sectional views, and symbols. They may be in the form of carefully planned and checked mechanical drawings, or they may be http://www.answers.com/topic/freehand sketches. Usually a sketch precedes the mechanical drawing. Many objects have complicated interior details which cannot be clearly shown by means of front, top, side, or pictorial views. Section views enable the engineer or detailer to show the interior detail in such cases. Features of section drawings are cutting-plane symbols, which show where imaginary cutting planes are passed to produce the sections, and section-lining (sometimes called cross-hatching), which appears in the section view on all portions that have been in contact with the cutting plane. In addition to describing the shape of objects, many drawings must show dimensions, so that workers can build the structure or fabricate parts that will fit together. This is accomplished by placing the required values (measurements) along dimension lines (usually outside the outlines of the object) and by giving additional information in the form of notes which are referenced to the parts in question by angled lines called leaders. Layout drawings of different types are used in different manufacturing fields for various purposes. One is the plant layout drawing, in which the outline of the building, work areas, aisles, and individual items of equipment are all drawn to scale. Another type of layout, or preliminary assembly, drawing is the design layout, which establishes the position and clearance of parts of an assembly. A set of working drawings usually includes detail drawings of all parts and an assembly drawing of the complete unit. Assembly drawings vary somewhat in character according to their use, as design assemblies or layouts; working drawing assemblies; general assemblies; installation assemblies; and check assemblies. Schematic or diagrammatic drawings make use of standard symbols which indicate the direction of flow. In piping and electrical http://www.answers.com/topic/schematic diagrams, symbols are used. The fixtures or components are not labeled in most schematics because the readers usually know what the symbols represent. See alsohttp://www.answers.com/topic/schematic-diagram-graphic-arts; http://www.answers.com/topic/circuit-diagram. Structural drawings include design and working drawings for structures such as building, bridges, dams, tanks, and highways. Such drawings form the basis of legal contracts. Structural drawings http://www.answers.com/topic/embody the same principles as do other engineering drawings, but use terminology and dimensioning techiques different from thoses shown in previous illustrations. See also http://www.answers.com/topic/nomogram.
Drawings of a bridge?
The standard drawings of a bridge can be found at the Washington State DOT website (link below).
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BS 8888 is the British standard for technical product documentation, including engineering drawings. It provides guidelines and standards for the creation, interpretation, and presentation of engineering drawings. The general principles outlined in BS 8888 are of utmost importance in engineering drawing for several reasons: **Standardization and Consistency:** BS 8888 ensures that engineering drawings follow a standardized format and conventions. This consistency is crucial for clear communication and understanding among engineers, designers, manufacturers, and other stakeholders involved in the product development process. **Clarity and Precision:** Following the general principles in BS 8888 ensures that engineering drawings are clear, accurate, and precise. This reduces the risk of misinterpretation or errors during manufacturing or assembly, leading to higher quality products. **Interchangeability and Compatibility:** Standardized engineering drawings based on BS 8888 facilitate the exchange of information between different organizations, industries, and countries. This interchangeability promotes efficient collaboration and seamless integration of components and systems from various sources. **Cost-Effective Manufacturing:** Well-structured and standardized engineering drawings help manufacturers understand design intent and dimensions clearly. This leads to more cost-effective manufacturing processes, reduced waste, and fewer errors during production. **Compliance with Regulations:** Many industries have regulatory requirements that demand adherence to specific drawing standards. BS 8888 ensures that engineering drawings comply with relevant industry regulations and statutory requirements. **Lifecycle Management and Documentation:** The general principles in BS 8888 promote the proper documentation of engineering drawings throughout the product's lifecycle. This documentation is essential for maintenance, repair, and further development of the product. **Efficient Communication:** Engineering drawings are a primary means of communication between different teams involved in the product development process. Following BS 8888 helps convey design intent, specifications, and manufacturing requirements effectively. **Risk Reduction:** Errors or misunderstandings in engineering drawings can lead to costly rework or safety risks in the final product. Following BS 8888 minimizes the chances of such issues, thus reducing potential risks. **Support for Computer-Aided Design (CAD):** The general principles of BS 8888 are compatible with CAD software, making it easier to create, modify, and store engineering drawings digitally. This enhances productivity and enables rapid design iterations. **Global Recognition:** BS 8888 is widely recognized and accepted internationally. Engineers and manufacturers from different countries can understand and work with engineering drawings that follow these standards. In summary, adhering to the general principles of BS 8888 in engineering drawing is vital for promoting consistency, accuracy, and effective communication in the product development process. It ensures that engineering drawings are clear, standardized, and compliant with industry regulations, ultimately leading to better-quality products and more efficient manufacturing processes.
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You want international standard code for engineering drawing?
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