Section Views Engineers Notebook
Objectives:
-Identify three applications of section views
-Define section drawings
-Describe how cutting planes are used
Vocabulary:
Section views
Sectional drawings Cutting plane lines Frontal cutting plane Horizontal cutting plane Profile cutting plane Outline section view Full section view Half sections Broken-out section Revolved section Assembly sections Web (or rib) Aligned sections Spoke Conventional breaks |
an important aspect of design and documentation, and are used to improve clarity and to reveal interior features of parts
are multi-view technical drawings that contain special views of a part or parts—-views that reveal interior features which show where the cutting plane passes through the object, represent the edge view of the cutting plane and are drawn in the view(s) adjacent to the section view the cutting plane appears as an edge in the top view and is normal in the front view If the cutting plane appears as an edge in the front view and is normal in the top view If the cutting plane appears as an edge in the top and front views and is normal in the profile view created by drawing partial section lines adjacent to all objects lines in the section view is made by passing the imaginary cutting plane completely through the object are created by passing an imaginary cutting plane only halfway through an object used when only a portion of the object needs to be sectioned made by revolving the cross-section view 90 degrees about an axis of revolution and superimposing the section view on the orthographic view typically are orthographic, pictorial, full section, or half section views of parts as assembled is a thin, flat part that acts as a support are special types of orthographic drawings used to revolve or align special features of parts in order to clarify them or make them easier to represent in section. Conventional practice also dictates the method for representing certain features that are perpendicular to the line of sight. Figure 8.55 shows a part with a feature called a spoke which is bent at a 30-degree angle from the vertical center line are used for revolved section views or for shortening the view of an elongated part, such as a shovel handle or vehicle axle. |