What types of lines used in engineering drawings and how they used? | Find, read and cite all the research you need on ResearchGate These lines are mostly used for typical part drawings and hidden lines are representing to showing the surfaces whenever the draft man could not see volute of the part drawing. It is not hand written. The projection lines for the hole-centre spacing dimension of 32mm are centre lines. In this highly interactive object, learners associate basic line types and terms with engineering drawing geometry. Apart from the Engineering Drawing, Production Drawing and Machine Drawing was also need to be learned by the Engineering student. The person who will read drawings have to learn what they mean. In an isometric drawing, the object's vertical lines are drawn vertically, and the horizontal lines in the width and … NPTEL provides E-learning through online Web and Video courses various streams. Let’s see what types of lines used in engineering drawings. Engineering Drawing and Sketching. Download ED Notes – 3 Engineering-Drawing-Part-4. This line is used to show hidden edges of the main object. H: Long Thin Dashed and Double Short Dashed Lines. Lines that are not parallel to these axes will not be of their true length. 1 Fundamental of Engineering, Instruments and practice of drawing lines 1.1.01 - 1.3.09 18 Hrs 2 Geometrical figures, lettering, numbering and method of dimensioning 1.4.10 - 1.6.18 18 Hrs 3 Free hand drawing 1.7.19 - 1.7.23 6 Hrs 4 Drawing sheet sizes, title block and item list 1.8.24 6 Hrs An engineering drawing is a type of technical drawing contains all the information of a product to be machined or fabricated, the purpose is to specify the geometry necessary for the construction of the product. Technical drawing is a form of design communication based on line symbols recognized and understood worldwide. For example, holes require center lines to identify the center and show that it is round. Download ED Notes – 6 Technical Drawing Line Types. The different line types are colored for clarity. and Ans. If the isometric drawing can show all details and all dimensions on one drawing, it is ideal. More Resources /articles Engineering Drawing- Articles , Notes , Interview Q & A Machine Design Notes , article , Interview Que. This line is used to show short break or irregular boundaries. INTRODUCTION Lettering is an important part of engineering drawing. outlines of adjacent parts, Download ED Notes – 1 Engineering-Drawing-Part-2. ME 111: Engineering Drawing Lecture 5 12-08-2011 Orthographic projection and 1 Projection of Points Indian Institute of Technology Guwahati Guwahati – 781039. Conventions – commonly accepted practices, rules, or methods. Continuous thin freehand lines are used in engineering drawing for showing sectional boundary lines on part and for Short break lines. The thickness of the lines must be chosen according to the type and size of the drawing from any of the six groups given in Table 1. It is a basic requirement and … In addition, besides pictographic representations, additional textual explanations can be used to convey the necessary information. In engineering drawing, the details of various objects are drawn by different types of lines. $(".your-captcha .wpcf7-not-valid-tip").html("Incorrect"); EO 1.4 STATE the purpose of the notes and legend section of an engineering drawing. Basic Knowledge for Drafting Graphics language Word language Lec. It gives information regarding size, and instructions, in the form of notes and dimension. The Bureau of Indian Standards has prescribed the types of lines in its code IS-10714-1983 to be used for making a general engineering drawing. It shows and describes clearly and accurately the information required to build or manufacture a product. looking at the drawing. Download ED Notes – 4 Engineering-Drawing-Part-5. Types of Lines. Solutions – Applications of Lines. Drafting students or those reading the drawings have to learn what they mean, just as one learns a new language. Extensive Engineering Symbol Libraries SmartDraw includes a large collection of mechanical engineering and architectural shapes and stencils for every type of engineering drawing. Standardized languages and symbols are used to describe the dimensions, parameters, and other features of the objects, which helps people to understand the drawing and manufacture the part correctly. Copyright ©Junying Metal Manufacturing Co., Limited, What is Engineering Drawing & Different Types of Lines in Engineering Drawing | CNCLATHING. Introduction. ... projection lines. Word language Describe size, location and specification of the object. Different line types used on Engineering Drawings. I have amalgamated the definitions from the engineering drawing supplement and the construction drawing supplement together. Certain features on a Engineering Drawing requires specific ways of indication. inclined and oblique surface do not show true size in the standard views. Basic Types of Lines Used in Engineering Drawings By Kelly Curran Glenn Sokolowski. A variety of line styles graphically represent physical objects, including visible, hidden, center, cutting plane, section, and phantom. Engineering drawing is the language of engineers and technicians. The Line … Keep reading for understanding the basic components of engineering drawing. The continuous thin line is the most frequently used line type on Engineering Drawings. In engineering drawing, engineering related objects like buildings, walls, electrical fittings, pipes, machines etc. A single drawing is composed of many basic elements, and different types of lines play distinct roles. Home | Mechanical Engineering| Robot | Aerospace | Structural Engineering |Videos | Comment |. This line may be made thin if the drawing is congested and allot of lines are so close to each other that the clarity of the drawing is negatively influenced. While it doesn’t do all your job for you (ironically if it did, it means you’re out of a job), having a software like this can make things a lot easier for you by a large margin. An engineering drawing is a type of drawing that is technical in nature, used to fully and clearly define requirements for engineered items, and is usually created in accordance with standardized conventions for layout, nomenclature, interpretation, appearance (such as typefaces and line styles), size, etc. })(jQuery); Junying Metal Manufacturing has developed high-level manufacturing technique in looking at the drawing. This line is basically used for dimension, extension, projection, leader line, etc. Dashed lines are used to represent hidden features of an engineering drawing.. Hidden lines – location of drilled hole’s diameter, in a view where the hole cannot be directly seen. 16. Technical drawing Lines are used for different purposes to provide specific information for designers, manufacturers, etc. A quiz completes the activity. The BS ISO standards require a 20mm border to the left hand edge (for filing) and a 10mm border round the other three sides of the drawing sheet. The height dimensions are aligned between the front and the profile views, using horizontal projection lines. Engineering drawings … C: Auxiliary View; Auxiliary View are usually used to show inclined and oblique surface true size. Because of … B; Continuous Thin line: Measure lines, Backside section lines, The size of the drawing border (or Engineering Drawing Frame) on your technical drawings is covered in BS EN ISO 5457. Intuitive Interface You already have a degree in engineering, you shouldn't need a degree to operate software. Section View are highly useful in minimizing the number of projected views. A dimension line which is a type B line (thin, continuous and straight). Drawing Handout Index. ... All the positioning is done by one hand while the other is used for drawing the lines. technical people. Also, it may be added here, that Lettering is appropriate and correct… block of an engineering drawing. For general engineering drawings, the types of lines recommended by the Bureau of Indian Standards shown in table 2 must be used. PDF | This book includes practice problems for Engineering Drawing course. The ability to read and understand information contained on drawings is essential to perform most engineering-related jobs. Black = object line and hatching 2. drawings, In front of section planes. Each style can be divided into different types. The engineering drawing understandings by the hidden lines are plays a vital role. D; Dashed Thick Lines with Dots: To state the special places/surfaces which will processed additionally like to coat, to harden etc. The person who will read drawings have to learn what they mean. Uncategorized / By Engineering Drawing Basics. Any engineering drawing should show everything: a complete understanding of the object should be possible from the drawing. Blue = center line of piece or opening 4. The following are the critical information of an engineering drawing of mechanical parts or CNC products. They are type G lines (thin, discontinuous, chain) which pass through the drawing just past where the holes are located. Elements of Engineering Drawing Engineering drawing are made up of graphics language and word language . Censorial Lines, to state center of gravity. production fields of machining. Let’s see what types of lines used in engineering drawings. by Ernesto E. Blanco, David Gordon Wilson, Sherondalyn Johnson, and LaTaunynia Flemings. Putting the Line types, Line weights and Line type scales together, we get the following Line type Definitions to use in our drawings. Continuous Thin Line . F: Chain Thin Line Long-Dotted (Dashed Thin Lines with Dots). Lec. The use of a right type of line results in a correct drawing. MECHANICAL ENGINEERING 22 21. F; Chain Thin with Thick Ends: Cutting Plane, To draw the trace at section planes, G; Continuous Thin Zigzag Line: It is used when free hand lines are drawn by tools, H; Free Hand Line: Limits of partial and interrupted views and sections, I; and J; Parts situated in front of the cutting planes, A; Continuous Thick Line: Surroundings and sides of the matters ( Outlines of the Edges), End of the Screws. Engineering Drawing Plays a crucial role in the life of Every Mechanical Engineering student because he has to bear that subject throughout his BTech. These lines are solid and has no break in them. Here is an example of an engineering drawing (an isometric view of the same object is shown above). Download ED Notes – 5 Engineering-Drawing-Part-6. are represented with specifications like size, shape, materials etc. In most cases, a simple component is specified with many drawings, which are linked together with a primary drawing or assembly drawing. Red = hidden line 3. These lines touch the outline of the part. Technical drawing Lines are used for different purposes to provide specific information for designers, manufacturers, etc. Bhuiyan Shameem Mahmood Graphics language Describe a shape (mainly). Continuous Thin line with intermittent Zig Zag: This lines are to showing break in a long continuous series of lines on structural drawing and also indicating the break on an adjacent member to which a component is attached. ANSI and ISO Geometric Tolerancing Symbols, ISO International System For Limits And Fits, Fundamental Deviations For Hole and Shaft Basis, Calculation of Upper and Lower Deviation For Shaft, Calculation of Upper and Lower Deviation For Holes, Terms and Definitions of the Cutting Tools, Selection of Carbide to machine the work-part, Identification System For Indexable Inserts, Machinability and the specific cutting force, Machinability of the Certain Material Evaluations. B: Section View; Section View allows Designer to show internal feature of the objects. Download ED Notes – 2 Engineering-Drawing-Part-3. On a drawing, whole of the written information is always in the form of lettering. Engineering-Drawing-Part-1. This line is used to represent the center line for circles and arcs. Copyright ©2020 Coban Engineering.All Rights Reserved. The basis of any drawing is a line. A single drawing is composed of many basic elements, and different types of lines play distinct roles. The hidden lines are also called as dotted lines. E; Dashed Thin Lines with Dots: Axis lines of symmetrical Line types are also a language type to communicate between With an engineering drawing software at your disposal to make things so much simpler and easier for you, it would simply be a waste of time and effort to do everything manually. ... T square is used to draw horizontal and vertical lines on drawing sheet. C; Dashed Thin Lines: Invisible/Hidden Lines represents an invisible edges on the on an objects. Magenta = phantom line or cutting plane line Sectional views are indicated by the direction of arrows, as in the example above. Each style can be divided into different types. I guess like any type of technical drawing you need to have an understanding of what device you’re trying to illustrate, its functions, and the space creators need to understand while assembling. Figure 2 - An Isometric Drawing. This line is used to represent the location of a cutting plane. Technical drawings provide clear and accurate information how an object is to be manufactured. Geometry – the shape of the object, represented as views from various angles, Dimensions – the size of the part, expressed in accepted units, Tolerances – variations of each dimension allowed, Material – represents what the component is made from. 1. A variety of line styles graphically represent physical objects, including visible, hidden, center, cutting plane, section, and phantom. A harder pencil should be used, such as a 2H pencil. Line types used in technical drawing are used for different purposes to provide specific information to the people looking at the drawing. Line types are also a language type to communicate between technical people. Each line is used for a definite purpose and it should not be used for anything else. This line is located in front of cutting planes, outlines of adjacent parts, censorial Lines, and to state center of gravity. Implied axis lines, to state the code of the planes, Engineering drawing abbreviations and symbols are used to communicate and detail the characteristics of an engineering drawing.This list includes abbreviations common to the vocabulary of people who work with engineering drawings in the manufacture and inspection of parts and assemblies. at diagonal lines which are used to state plane surface, Intersection, Leader, Hatching. This video will help you to understand the difference between different types of lines used in technical drawing. (function ($) { This line is used to display the outline and edges of the main drawing, done with a pencil softer than HB.