Types of Section Views - Section View-Section PPb.ppt

Types of Section Views - Section View-Section PPb.ppt

1. Ken Youssefi Mechanical and Aerospace Engineering Dept., SJSU 1
Section Views
Orthographic views showing all hidden lines may not be
clear enough to describe an object’s internal details.
This shortcoming can be overcome by imagining that part
of the object has been cut away and shown in a cross-
sectional view. This view is called a section view.

2. Ken Youssefi Mechanical and Aerospace Engineering Dept., SJSU 2
Type of Section Views
•Full section view
•Offset section view (multiple offset views)
•Half section view
•Broken section view
•Aligned and Revolved section views
•Removed view

3. Ken Youssefi Mechanical and Aerospace Engineering Dept., SJSU 3
Section View –Full Section

4. Ken Youssefi Mechanical and Aerospace Engineering Dept., SJSU 4
Section View –Offset Section
Offset cutting plane

5. Ken Youssefi Mechanical and Aerospace Engineering Dept., SJSU 5
Section View –Multiple Offset Sections

6. Ken Youssefi Mechanical and Aerospace Engineering Dept., SJSU 6
Section View –Half Section

7. Ken Youssefi Mechanical and Aerospace Engineering Dept., SJSU 7
Section View –Broken Section

8. Ken Youssefi Mechanical and Aerospace Engineering Dept., SJSU 8
Section View –Aligned & Revolved Section

9. Ken Youssefi Mechanical and Aerospace Engineering Dept., SJSU 9
Section View
Removed sections placed
outside of the view
Hatch lines

10. Ken Youssefi Mechanical and Aerospace Engineering Dept., SJSU 10
Section View –review
•All visibleedges and contours behind the cutting plane should be shown.
•Hidden lines should be omitted in section views.
•A section view should always be bounded by a visible outline.
•There should be no lines in the hatched area.
•Section lines should be in the same direction.
•Use standard section lines (hatch) to show materials.

11. Ken Youssefi Mechanical and Aerospace Engineering Dept., SJSU 11
Breaks and Sectioning

12. Ken Youssefi Mechanical and Aerospace Engineering Dept., SJSU 12
ANSI Standard Section Lines
for Various Materials
ANSI-31
ANSI-133
ANSI-134
American
National
Standards
Institute

13. Ken Youssefi Mechanical and Aerospace Engineering Dept., SJSU 13
Architectural Drawing
Crosshatching patterns
for various building
materials that go into the
construction of
foundation, roof details,
or wall sections.

14. Ken Youssefi Mechanical and Aerospace Engineering Dept., SJSU 14
AutoCAD Crosshatching