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College of EngineeringEngineering Education Innovation Center

Section Views - Part 2

Sections 13.01-13.13 of Text

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Objectives • Learn about the different types of section

views• Decide what category of section view

should be used for particular circumstances

• Create half section views such that they adhere to accepted engineering drawing practices

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Section Views

• Although we will only focus on full and half sections in this class, there are many different types of section views: – Offset sections – Removed sections– Revolved sections– Broken out sections

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Offset sections

• Offset sections are used to capture internal details of parts where not all details line up along a single cutting plane.

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Removed and Revolved Sections

Removed Sections• Shows only ‘new’

surfaces created by a cutting plane.

Revolved Sections• Similar to a removed section,

but it super-imposed onto the object at the location of the cutting plane

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Broken-Out Sections• Broken-out sections are used when the

internal detail to be revealed is only a small part of the whole object.

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Half Sections

• Half sections are used to save time and space in engineering drawings and are most commonly used for symmetric parts.

• The steps for creating a half section are the same as those for creating a full section, but only half of the object needs to be revealed.

• Hidden lines are not shown on the un-sectioned portion of the section view.

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Half Sections

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Creating Half Sections• Step 1: Draw the cutting plane and

choose the viewing direction. • Step 2: Outline the base; a

centerline divides the sectioned half from the solid half

• Step 3: Identify intersection points with the cutting plane and see what is happening on the adjacent view.

• Step 4: Outline internal features associated with the intersection points on the cutting plane.

• Step 5: Find the boundaries of air and solid and cross-hatch the solid areas.

• Step 6: Add new edges that were revealed and centerlines where appropriate. CLICK

Section B-B

B

B

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Section Views

• Use this time to practice drawing half sections.

• In class assignment