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- Half Sections If the cutting plane is passed halfway through an object, and one-quarter of the object is removed, the resulting section is a half section. A half section has the advantage of showing both inside and outside configurations. It is frequently used for symmetrical objects.
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A half section is one-half of a full section. While a full section shows the object as if half has been cut away, a half section shows one-quarter cut away. Imagine that two cutting planes at right angles to each other slice through the object as shown in Figure 8-11A through Figure 8-11C. Figure 8-11D shows the object’s exterior (not in ...
Half section views are most often used on parts that are symmetrical, such as cylinders. A broken-out section is used to show interior features of a part by breaking away some of the object.
A half section view means that you are only removing a quarter of an object. This type of view is ordinarily used when the object is symmetrical or if you only need to show a portion of a complex assembly.
- 7.1 Introduction
- 7.6 Section View Types
- Full Section Views
- Straight Sections
- 7.6.2 Partial Section Views
- 7.6.3 Special Section Views
A section view is an orthographic projection view drawn to reveal internal or hidden features in an object. Section views are used to supplement standard orthographic view drawings in order to completely describe an object. They improve visualization of designs, clarify multiviews and facilitate dimensioning of drawings. Hence they are an important...
Section views may be classified in different ways. For our discussions, we shall group them into full, partial, and special section views. In full section views the full length of the principal dimension perpendicular to the view direction of the object is shown in section view. Hence the cutting plane or planes pass through the whole cross-section...
Full section views provide section views along the full length of the cross-section of an object. They include straight, offset, removed, revolved, and aligned section views. Each is briefly discussed below.
A straight section is also called a full section by some authors. The cutting plane for a straight sections cuts right through the middle of the object so that one half of it is revealed after the second half is imagined removed. Thus a straight section is created from a single cutting plane. Straight sections are best for objects with an axis of s...
Partial section views provide section views of a portion of an object. They include half, broken, and detail section views. Each is briefly discussed below.
Section views derived from non-principal views such auxiliary sections may be considered as special section views. Similarly, special application section views such as assembly sections and features or parts that are not sectioned in drawings by convention are special section views.
Half Section The half section view may be used where a part or assembly is symmetrical about the centerline of the part or assembly. This will save space on the drawing with over population of reference and section views.
A Half sectional view is much like a Full sectional view, except, it's applied only to half an object. This view is optimum when dealing with objects symmetrical along the cutting plane. It offers the advantage of depicting external features on one half, while introducing the internal structure on the other.
