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AUTOMOBILE DRAFTING
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DI04002071
Code: DI04002071
Credits: 4
Semester 4
COMPUTER
Automobile Drafting
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Follow on Instagram for UpdatesAutomobile Drafting Syllabus — Unit-wise Content
The official GTU curriculum for Automobile Drafting (subject code DI04002071) as prescribed for COMPUTER · Semester 4 divides the course into 5 units, covering 38 listed topics. The unit-wise breakdown below is read from the GTU syllabus document for this subject code, so you can check what the course actually covers before deciding which papers to attempt.
Download the official syllabus PDF (DI04002071)Unit 1 Introduction to Automobile Drafting
- 1.1 Introduction to drafting
- types of drafting Importance. ● Differences of detail drawing and assembly drawing. ● Difference between workshop and manufacturing drawings 1.2 Common drawing symbols and its conventional representation 1.3 Geometrical symbols and its interpretation 1.4 General welding symbols: ● Length and size of weld
- ● Surface contour and finish of weld
- all round and site weld
- ● Symbolic representation in Engineering practices and its interpretation. 1.5 Machining symbol and surface texture: ● Indication of machining symbol showing direction of lay, sampling length. ● Roughness grades
- machining allowances
- manufacturing methods. ● Representation of surface roughness on drawing. 1.6 Other drafting symbols like threading
- Bearings. 1.7 Importance of development of surfaces
- Drawing of development of surfaces of simple shapes like cylinder
- prism 1.8 Various types of automotive component drawing used at Manufacturing units
- workshop manuals and car catalogs. 10
Unit 2 Dimensional and Geometrical Tolerances in Engineering Design
- introductions to ISO system of Tolerance. 2.2 Dimensional tolerances:-Terminology. ● Selection and representation of dimensional tolerance- number and grade method. ● Definitions concerning Tolerance and Limits system
- unilateral and bilateral tolerance ● Hole and shaft base systems ● Types of fits-Clearance
- transition and Interference ● Selection of fit for engineering applications
- Program Name: Diploma Engineering Level: Diploma Branch: Automobile Engineering Subject Code : DI04002071 Subject Name : Automobile Drafting w.e.f. 2025-26 http://syllabus.gtu.ac.in/ Page no. 3 of 6 ● Calculation of limit sizes and identification of type of fit from the given sizes like 050 H7/s6
- 030 H7/d9 etc. 2.3 Geometrical Tolerances: Types of geometrical tolerances ● Terminology for deviation
- Tolerances of form and position and its geometric representation. ● Tolerance frame
- datum feature
- magnitude of tolerance and symbol
- ● Representation and interpretation of geometrical tolerance on drawing
Unit 3 Part Drawings of Engine Components
- 3.1 Part drawing of Piston (with rings
- pin) 3.2 Part drawing of connecting rod. 3.3 Part drawing of Single plate clutch assembly 3.4 Part drawing of Flywheel
Unit 4 Assembly Drawings, Exploded Views, and Bill of Materials of
- Automobile Components 4.1 Assembly
- Types of assembly. 4.2 Assembly of Piston & Connecting Rod 4.3 Simple exploded views 4.4 Sectional views
- BOM (Bill of Materials). 4.5 Assembly drawing of different types of Gearboxes
Unit 5 Automobile Drafting Using AutoCAD
- 5.1 Introduction to Automobile Drafting (2D) with AutoCAD. 5.2 AutoCAD Environment & Interface: ● The ribbon
- command line
- status bar, and model/paper space. ● Basic file management: saving
- opening, and templates (.dwg). 5.3 Basic Drawing Commands: ● LINE
- CIRCLE, ARC, RECTANGLE
- etc. ● PLINE (polyline) for complex shapes
- etc. 5.4 Editing & Modifying Objects: ● TRIM
- etc. ● MIRROR
- etc. ● Creating and using ARRAY (rectangular and polar)
- Program Name: Diploma Engineering Level: Diploma Branch: Automobile Engineering Subject Code : DI04002071 Subject Name : Automobile Drafting w.e.f. 2025-26 http://syllabus.gtu.ac.in/ Page no. 4 of 6 5.5 Drawing Organization & Layers: ● Creating
- naming, and managing layers for different components (e.g.
- text). ● Controlling layer visibility and properties (color
- line type). 5.6 Project: Draft a 2D engineering drawing of a simple automotive component (e.g. 1) Fly wheel 2) Spur gear 3) Screw Jack 4) Universal Joint 5) Machine Vice 6) Connecting Rod 7) piston) with a title block and dimensions
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