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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.
- Section Views – Engineering Graphics and Design
A half section view means that you are only removing a...
- Section Views – Engineering Graphics and Design
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.
- General Principles
- Section Lines and Symbols
- Cutting Planes
- Main Principles of Placement of Sectional Views
A sectional view represents the part of an object remaining after a portion is assumed to have been cut and removed.The exposed cut surface is then indicated by section lines.Hidden features behind the cutting plane are omitted, unless required for dimensioning or for definition of the part.Section lines, or hatching, that represent the cut surface usually consist of thin parallel lines, as shown below, drawn at an angle of approximately 45° to the principal edges or axes of the part. For most purposes, the general use symbol of cast iron is used. When it is desired to indicate differences in materials, for example on assembly drawing...
Cutting plane lines which show where the cutting plane passes through the object, represent the edge viewof the cutting plane and are drawn in the view(s) adjacent to the section view. Here the cutting plane is drawn as an edge in the top view, which is adjacent to the sectioned front view. This is a frontal cutting plane. Lines of sight should alw...
Whenever practicable, and except for revolved sections, you should project sectional views perpendicular to the cutting plane and place it in the normal position for third angle projection.You should never show the views in first angle projected position on a third angle projection drawing.When the preferred placement is not practical you may remove the sectional view to some other convenient position on the drawing, but it must be clearly identified, usually by two capital letters,...Normally, you should not change orientation of the view, but if this becomes necessary, you must state the number of degrees through which it is revolved.This video demonstrates the essential steps required to draw a Half Section View.
- 3 min
- 5.6K
- ATUL SHARMA
Mar 17, 2020 · This lesson will explain the basics of creating section views in technical drawings to show the interior details of an object. I cover full sections, half sections, offset sections, broken-out...
- 7 min
- 3.4K
- Mr. Dillman's Tech Channel
May 11, 2024 · THIS VIDEO INSTRUCTIONS CAREFULLY STEP BY STEP HOW TO DRAW Engineering Drawings: - Isometric View and Left view from Front view and Top view - Half Section Isometric View - Front view and...
- 10 min
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- Đồ họa Kỹ thuật
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. It is important to remember that when using half sections, certain rules apply to the visibility of the center line.
