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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 objects 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.

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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

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Ken Youssefi Mechanical and Aerospace Engineering Dept., SJSU 3

Section View Ful l Section

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Ken Youssefi Mechanical and Aerospace Engineering Dept., SJSU 4

Section View Of fset Section

Offset cutting plane

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Ken Youssefi Mechanical and Aerospace Engineering Dept., SJSU 6

Section View Half Section

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Ken Youssefi Mechanical and Aerospace Engineering Dept., SJSU 7

Section View Broken Section

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Ken Youssefi Mechanical and Aerospace Engineering Dept., SJSU 8

Section View Aligned & Revolved Section

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Ken Youssefi Mechanical and Aerospace Engineering Dept., SJSU 11

Homework #3 Due Friday 9/29/06

page 265 (4thedition) and page 272 (5thedition)

Problems 1 and 7 Given the two views, front and

right side, freehand sketch the missing view top,

freehand sketch all three views. As an additional

exercise, create an isometric view of the object

page 407-410 (4thed.) and page 417-420 (5thed.)

Problem 8.1 part B only, full section view (fig. 8.53)

Problem 8.2 part Bonly, offset section view (fig. 8.54)

Freehand sketch both views and convert the front

view to a section view.

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Ken Youssefi Mechanical and Aerospace Engineering Dept., SJSU 13

ANSI Standard Section L ines

for Various Mater ials

ANSI-31

ANSI-133

ANSI-134

American

National

Standards

Institute

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Ken Youssefi Mechanical and Aerospace Engineering Dept., SJSU 14

Archi tectural Drawing

Crosshatching patterns

for various buildingmaterials that go into the

construction of

foundation, roof details,

or wall sections.

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Ken Youssefi Mechanical and Aerospace Engineering Dept., SJSU 15

AutoCAD Crosshatching

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Ken Youssefi Mechanical and Aerospace Engineering Dept., SJSU 17

Auxil iary Views