A half-section is a view of an object showing one-half of the view in section . Symmetrical parts can be shown in half sections. Half sections are commonly used to show both the internal and outside view of symmetrical objects. The cutting plane is off-set to include features that are not in a straight line.
What is the meaning of half section?
a scale drawing of a section through a symmetrical object that shows only half the object .
What is the purpose and advantage of a half section?
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.
What is the difference between full section and half section?
This is the most common section (called a full section) with the imaginary laser cutting a line across the entire construction, offering a view of a portion of the building with the rest of it put to one side. Half sections or views. In this type of section, only half of the space or object is cut away .
What is the purpose of sectioning?
A sectional view or a section looks inside an object. Sections are used to clarify the interior construction of a part that cannot be clearly described by hidden lines in exterior views . By taking an imaginary cut through the object and removing a portion, the inside features may be seen more clearly.
What are the 7 types of section views?
- Full Section . If the imaginary cutting plane passes through the entire object, splitting the drawn object in two with the interior of the object revealed, this is called a “full section .” A full section is the most widely-used sectional view .
- Half View . ...
- Offset View . ...
- Revolving View . ...
- Broken View .
When and why is a section view necessary?
In which case, the direction of sight is towards one half of the object . The other half is then mentally discarded. Drafters use sectional views to improve the clarity of complex objects when internal surfaces result in too many hidden lines. Special conventions are used to make a sectional view easy to understand.
Which is bigger part or section?
part – a general term. eg I can use my hands to break a part off a loaf of bread. section – refers to a part that is more clearly defined. eg it's easy to divide an orange into sections.
What is a broken out section?
A broken-out section view cuts away a portion of an assembly in a drawing view to expose the inside . ... A broken-out section is part of an existing drawing view, not a separate view. A closed profile, usually a spline, defines the broken-out section. Material is removed to a specified depth to expose inner details.
What is an offset section?
What is an offset section? An offset section is produced by bending the cutting plane to show features that don't lie in the same plane .
How do you read a section drawing?
Imagine cutting through your home, and taking away the portion that faces away from the direction of the section view. Peer into that space. Some of the surfaces will have been cut through when the section was created, then you can see into the rooms that have been cut through until your eye meets a wall or an object.
What is a removed section view?
So, what is it? The removed section view is a zero-thickness slice through the model showing only cut edges and hatching perpendicular to the cutting line . That's different than the traditional section view, which is projected parallel to the cutting line.
What is a half view?
Half views cut the model at a plane, erasing one portion of it, and displaying the rest .
What is a section plan?
A ‘section drawing', ‘section' or ‘sectional drawing' shows a view of a structure as though it had been sliced in half or cut along another imaginary plane. ... Plan drawings are in fact a type of section, but they cut through the building on a horizontal rather than vertical plane.
Why are section drawings prepared?
One particularly useful type of drawing is what's called an architectural “section.” It's the drawing of a vertical cut through a building or an area of a building. The purpose of a section is to show, graphically, the main volumes of the building and the main building material components .
When should a full section be used?
Full sections
This type of section is used for both detail and assembly drawings . When the cutting plane divides the object into two identical parts, it is not necessary to indicate its location.
