1. 1 MEMB113: ENGINEERING GRAPHICS & CAE 12 SECTION VIEW

2. MEMB113 | Dept. of Mechanical Engineering | UNITEN | 2005 2 Sectioning A sectional view represents the part of an object which remains after a portion has been removed. Used to show hidden shape or form Will help to clarify what would normally be shown as hidden detail Only solid material being cut is sectioned The section is obtained by cutting the component into two parts at some good points Sectioning symbol or hatching should be used to indicate the part that has been cut Useful aid to draw equally spaced hatching line Hatching lines Thin continuous line Drawn at 45  to horizontal, right or left

3. 12 SECTION VIEW MEMB113 | Dept. of Mechanical Engineering | UNITEN | 2005 3 Adjacent parts Section cutting planes are denoted by chain line Arrowheads indicate the direction of viewing The section view is identified by 'SECTION A-A'

4. 12 SECTION VIEW MEMB113 | Dept. of Mechanical Engineering | UNITEN | 2005 4 As general rule, all material cut by a cutting plane is hatched, except for web, shafts, bolts, rivets, keys, pins, and similar parts

5. 12 SECTION VIEW MEMB113 | Dept. of Mechanical Engineering | UNITEN | 2005 5 Drawing sectional views Full sectional view Isometric view of a section

6. 12 SECTION VIEW MEMB113 | Dept. of Mechanical Engineering | UNITEN | 2005 6 Drawing sectional views Orthogonal view of a section

7. 12 SECTION VIEW MEMB113 | Dept. of Mechanical Engineering | UNITEN | 2005 7 Drawing sectional views Offset sectional view Isometric view of an offset section

8. 12 SECTION VIEW MEMB113 | Dept. of Mechanical Engineering | UNITEN | 2005 8 Drawing sectional views Orthogonal view of offset section

9. 12 SECTION VIEW MEMB113 | Dept. of Mechanical Engineering | UNITEN | 2005 9 Drawing sectional views Half sectional view Isometric

10. 12 SECTION VIEW MEMB113 | Dept. of Mechanical Engineering | UNITEN | 2005 10 Drawing sectional views Orthogonal

11. 11 End of Chapter [12] References: - Engineering Drawing, A.W. Boundy, McGraw-Hill, 2000 - Fundamentals of Graphics Communication 3rd Edition, Gary Bertoline & Eric Weibe, McGraw-Hill