importance of sectioning in engineering drawing

A half-section is a view of an object showing one-half of the view in section, as in figure 19 and 20. Dept of Mechanical Engineering and Mechanics, Drexel University Good Sectional View Drawing Practices • Different parts at different angles or patterns • Hatch spacing of about 1/16”-1/8” • Cutting plane line .020” wide (bold) • Section or hatch lines -- thin .007” • Visible lines -- … They are also very useful in dimensioning the drawing. As already said, such a technical drawing has all the information for manufacturing a part or welding and building an assembly.The info includes dimensions, part names and numbers, etc. These sectional views are very useful when there is geometry on the interior of a part that is difficult to understand from looking at typical orthographic views. The hypotheses to be addressed in this paper are given in Section … Sectional views in engineering technical drawings . Given Necessity of a section view Finish No Internal features make a view difficult to read or dimension? Engineering is a very important discipline in the world of today. The importance of this area of specialization by many people is felt all over the world. To execute any building project, a set of architectural drawings are required on the construction site, drawn by the architects, to define the production details into tender documentation such as the materials to be used, highly accurate dimensions, etc. The section line can take an indirect route through a building if this helps show the most important features or junctions in the building, as illustrated on the drawing below. Hence, the skill to interpret and construct engineering sketches and drawings is of paramount importance. Understanding drawing's importance in the design process helps establish what skills need to be taught to engineers during their training. So once a manufacturing engineer gets the drawing, he can start the production process without a second thought. A section drawing is one that shows a vertical cut transecting, typically along a primary axis, an object or building. It is therefore, one of the principal functions of drawing to convey ideas from the design engineer to the fabricator. The section reveals simultaneously its interior and exterior profiles, the interior space and the material, membrane or wall that separates interior from exterior, providing a … The following texts are the property of their respective authors and we thank them for giving us the opportunity to share for free to students, teachers and users of the Web their texts will used only for illustrative educational and scientific purposes only. This paper is organized by first, in Section II, clarifying the types of drawings used in mechanical design. A section is used to show the detail of a component, or an assembly, on a particular plane which is known as the cutting plane. The importance of engineering in … In the current world we exist in, no country will succeed without the adoption of engineering practices. The Purpose of Engineering Drawings. Figure 19 - Full and sectioned isometric views. It is considered poor practice to dimension to a A simple bracket is shown in Fig. Construction drawing is commonly produced in the form of detailed architectural floor plans, elevations, or sections. Sectional views in engineering technical drawings . Contents Introduction Basic components Kind of sections Dimensioning 3. Engineering Drawing: Chapter 09 section 1. Figure 20 - Front view and half section. Chapter 8 Section Views 2. or revolved sections, removed sections, offset sections, and assembly sections. If there are a number of sections, the line may have letters at each end indicating the name of the section drawing and an arrow showing the direction that the view takes. The diagonal lines on the section drawing are used to indicate the area that has been theoretically cut. the importance of Orthographic drawing is a basic understanding of presentation drawing, wherin 3 main views of an object are presented in correct dimension of the height, width and depth. Introduction 4. Engineering Drawing can supply all the information needed with the exactness and details required. 8.1 and it is required to draw three sectional views.Assume that you had a bracket and cut it with a hacksaw along the line marked B-B.

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