GE6152 ENGINEERING GRAPHICS

GE6152 ENGINEERING GRAPHICS

GE6152	ENGINEERING GRAPHICS	L T		P C
		2	0	3	4
OBJECTIVES:

·         To develop in students, graphic skills for communication of concepts, ideas and design of Engineering products

·         To expose them to existing national standards related to technical drawings.

CONCEPTS AND CONVENTIONS (Not for Examination)

1

Importance of graphics in engineering applications – Use of drafting instruments – BIS conventions and specifications – Size, layout and folding of drawing sheets – Lettering and dimensioning.

UNIT I            PLANE CURVES AND FREE HAND SKETCHING                                                 5+9

Basic Geometrical constructions, Curves used in engineering practices: Conics – Construction of ellipse, parabola and hyperbola by eccentricity method – Construction of cycloid – construction of involutes of square and circle – Drawing of tangents and normal to the above curves, Scales: Construction of Diagonal and Vernier scales.

Visualization concepts and Free Hand sketching: Visualization principles –Representation of Three Dimensional objects – Layout of views- Free hand sketching of multiple views from pictorial views of objects

UNIT II            PROJECTION OF POINTS, LINES AND PLANE SURFACES                             5+ 9

Orthographic projection- principles-Principal planes-First angle projection-projection of points. Projection of straight lines (only First angle projections) inclined to both the principal planes - Determination of true lengths and true inclinations by rotating line method and traces Projection of planes (polygonal and circular surfaces) inclined to both the principal planes by rotating object method.

UNIT III           PROJECTION OF SOLIDS                                                                                        5+9

Projection of simple solids like prisms, pyramids, cylinder, cone and truncated solids when the axis is inclined to one of the principal planes by rotating object method and auxiliary plane method.

UNIT IV	PROJECTION OF SECTIONED SOLIDS AND DEVELOPMENT OF
	SURFACES	5+9

Sectioning of above solids in simple vertical position when the cutting plane is inclined to the one of the principal planes and perpendicular to the other – obtaining true shape of section. Development of lateral surfaces of simple and sectioned solids – Prisms, pyramids cylinders and cones. Development of lateral surfaces of solids with cut-outs and holes

UNIT V	ISOMETRIC AND PERSPECTIVE PROJECTIONS	6+9
Principles  of	isometric projection  –  isometric  scale  –Isometric projections of	simple  solids and

truncated solids - Prisms, pyramids, cylinders, cones-  combination of two solid objects in simple

vertical positions and miscellaneous   problems. Perspective  projection  of	simple  solids-Prisms,
pyramids and  cylinders by visual ray method .
COMPUTER AIDED DRAFTING (Demonstration Only)	3
Introduction to drafting packages and demonstration of their use.
	TOTAL: 75 PERIODS
OUTCOMES:
On Completion of the course the student will be able to:

·         Perform free hand sketching of basic geometrical constructions and multiple views of objects.

·         Do orthographic projection of lines and plane surfaces.

·         Draw projections and solids and development of surfaces.

·         Prepare isometric and perspective sections of simple solids.

·         Demonstrate computer aided drafting.

TEXT BOOK:

1.     Bhatt  N.D.  and  Panchal  V.M.,  “Engineering  Drawing”,  Charotar  Publishing  House,  50^th

Edition, 2010.

REFERENCES:

1.     Gopalakrishna K.R., “Engineering Drawing” (Vol. I&II combined), Subhas Stores, Bangalore, 2007.

2.     Luzzader, Warren.J. and Duff,John M., “Fundamentals of Engineering Drawing with an introduction to Interactive Computer Graphics for Design and Production, Eastern Economy Edition, Prentice Hall of India Pvt. Ltd, New Delhi, 2005.

3.     Shah M.B., and Rana B.C., “Engineering Drawing”, Pearson, 2^ndEdition, 2009.

4.    Venugopal K. and Prabhu Raja V., “Engineering Graphics”, New Age International (P) Limited, 2008.

5.     Natrajan K.V., “A text book of Engineering Graphics”, Dhanalakshmi Publishers, Chennai, 2009.

6.     Basant Agarwal and Agarwal C.M., “Engineering Drawing”, Tata McGraw Hill Publishing Company

Limited, New Delhi, 2008.

Publication of Bureau of Indian Standards:

1.   IS 10711 – 2001: Technical products Documentation – Size and lay out of drawing sheets.

2.   IS 9609 (Parts 0 & 1) – 2001: Technical products Documentation – Lettering.

3.   IS 10714 (Part 20) – 2001 & SP 46 – 2003: Lines for technical drawings.

4.   IS 11669 – 1986 & SP 46 – 2003: Dimensioning of Technical Drawings.

5.   IS 15021 (Parts 1 to 4) – 2001: Technical drawings – Projection Methods.

Special points applicable to University Examinations on Engineering  Graphics:

1 . There will be five questions, each of either or type covering all units of the syllabus.

2.   All questions will carry equal marks of 20 each making a total of 100.

3.   The answer paper shall consist of drawing sheets of A3 size only. The students will be permitted to use appropriate scale to fit solution within A3 size.

4.     The examination will be conducted in appropriate sessions on the same day