الرسه اهلندسي للنهندسني والفنيني اجلزء األول تأليف: أسامة حمند املرضي سلينان

Transcription

1 كتاب الرسه اهلندسي للنهندسني والفنيني تأليف: أستاذ مشاعد قشه امليكانيكا كلية اهلندسة والتقنية جامعة وادي النيل فرباير 602 i

2 ii

3 i.e. i.e. iii

4 i.e. واهلل ولي التوفيق املؤلف كلية اهليدسة والتقيية جامعة واي الييل الطبعة األوىل يياير 055 و الطبعة الثاىية فرباير 602 و iv

5 ii iii v v

6 vi

7 vii

8 Fundamental Definitions) Engineering Drawing. Types of lines). 0.7mm BS 308:972) thick lines /i 0.3 mm thin lines ii Visible outlines i.e. Hidden outlines 0

9 Dimension Line 3 fictitious outlines (The Limits of Partial Views and Sections 4 thin continuous irregular line Free hand sketch Center Line 5 i.e. 6

10 (Cutting Planes Line) 6 3mm.3 3 H /i H B ii.4 (Chisel-edged Pencils) i Conical-pointed pencils) / ii

11 Old smooth file,or a glass paper block.5 3 H pencil H B pencil 3 H H B o angle triangle o 45 4 set square o 36 o 66 5 T-square )T 6 SI 7 eraser French Curve 8 9 radius templates 6 protractor. (Small,medium and large sized compasses) 2 Cello tape 3

12 A 3 A 4 4 Lines and lettering.6 Upright Sloping 2 (small letters capital letter i ii faint guide lines 3 mm 3 mm Drawing Scales.7

13 Standard drawing scales : Full size i :2 half full size ii :5 :6 One-fifth full size One-tenth full size iii /iv 2: Twice full size v 5: Five times full size vi 6: (Ten times full size vii Metric drawing paper sizes(mm) A A A A mm A 4 A 5 A 6 2

14 Title block 3 3

15 Geometrical constructions To bisect a line. AB i R A B B A /ii D C B A A B E D C iii To bisect an angle. A B C i R E D C B A B R B ii 4

16 R F R E D iii F B iv To find the center of an arc.3 C B A i B C A B ii O iii O (To inscribe a circle in a triangle).4 A B C i 5

17 O O ii iii To draw the circumscribing circle of a triangle).5 A B C i /ii O iii O 0

18 .6 To draw a regular hexagon given the distance across flats) i 6 66 T ii.7 (To draw a regular hexagon given the distance across corners /i T ii /iii 00

19 .8 (To draw a regular octagon given the distance across flats) i 45 6 T ii 2.9 (To draw a regular octagon given the distance across corners) 06

20 454 /i /ii /iii.2 To draw a regular pentagon given the length of the side) A B /i D C A B B A /ii C D /iii F E A B D iv G C D J H F G E G v K A B J H vi 0

21 A J K H B /vii 2. (To draw any regular polygon given the length of the side) A B i 60 o o 45 A B /ii 0

22 6 4 /iii A B A B /iv A B /v A B 7 A B A-7 vi /vii A B. (To find graphically the circumference of a circle) 0

23 D D i D D 3 D D D A D /ii 3 2 O D 36 6 O B O iii.o D B C B iv C 3 v C 3 vi 02

24 Principles of Tangency i ii ii 3. To draw an arc of a given radius to touch a given straight line) A B i A B R C ii A B T 03

25 3. (To draw an arc of a given radius to touch a given arc externally) r R 04

26 R r R + r) 2 r R 05

27 3.3 (To draw an arc of a given radius to touch a given arc internally) r R R r R r 2 R r R 6

28 Orthographic projection) Orthographic projection of a point) 4. A A projection line) A A A A (Orthographic projection of a line) 4. 60

29 (Orthographic projection of a solid)

30 First angle orthographic projection) 4.4 Elevation or vertical view) plan view) Ground line) x y) Folding line 6

31 i. e. E S i ii iii 6

32 Third angle orthographic projection) 4.5 E S i ii iii 6

33 3 4.6 i ii iii 62

34 4.7 4 i ii iii 63

35 Dimensioning Introduction 5. Dimensioning Techniques) 5 i ii iii /iv 3mm 6mm v vi /vii 5. 64

36 5. viii ix 65

37 x xi Dimensioning of small features xii

38 Dimensioning angles) xiii 5.5 xiv R 5.6 Dimensioning radii 5.6 0

39 i. e. 5.7 xv Counter sink) Counter sink) 5.7 Counter bore xvi E /i 6

40 S /ii iii

41 (Isometric Projection) Definition of Isometric Projection A E B O A O C D B O C F O C C D C F A D 36 6 B F O C

42 6. Isometric scale

43 y y 2 cos 45 cos30 o o x y x y 2 () (2) 2 x y y2 x cos 45 cos30 o o (Objects composed entirely of isometric lines) A 2

44 A A 3

45 x 36 6 x = 46 tan mm A 2 x 3 4 4

46 3 A 5

47 (Circles in isometric projection 6.6 Elliptical shape (Circle construction by ordinates) y x i ii iii vi

48 (Circle construction by circumscribing square method) /i /ii x, x /iii iv v x, x) vi 0

49 Approximate circle construction) 3 i.e. G H E F i A B C D A B C D A C ii iii D B iv J I A C v J I D B vi 6

50 6.6

51 Oblique Parallel Projection Introduction 7. Cavalier and Cabinet Projection) 7 7 receding axis) cabinet projection cavalier projection

52 Positioning of the object relative to the projection plane)

53

54 7 4 Drawing circles in oblique parallel projection 7 3 3

55 26 4

56

57 Alex Krulikowski, "Fundamentals of Geometric Dimensioning and Tolerancing", May (202). 2. Colin H. Simmons, "Manual of Engineering Drawing: Technical Product Specification and Documentation to British and International Standards", June (202). 3. Colin H. Simmons, and et. al., "The Essential Guide to Technical Product Specification: Engineering Drawing ", August (2009). 4. Francis D. K. Ching, "Architectural Graphics", December (2009). 5. John Montague, "Basic Perspective Drawing", December (203). 6. Joseph Shigley, and et. al., ''Mechanical Engineering Design'', Seventh Edition, McGraw Hill company, (2004). 7. Koos Eissen, "Sketching", December (204).

58 8. Maurice Arthur Parker, F. Pickup, "Engineering Drawing with Work Examples ", Third Edition, Vol., January (976). 9. Michael R. Linderburg, ''Mechanical Engineering Reference Manual'', Twelfth Edition, Professional Publication, Inc., (2006). 0. N. D. Bhatt, " Engineering Drawing", (202).. Sandra Rendgen, "Information Graphics", August (202). 2. Terence Driscoll, "Technical Drawing for Today: Worked Examples, Book 3", January (98). 0