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Mar 28, 2020 · This video is to make an introduction to sectioning, sectional views and is about section-lines, cutting-plane lines, and break lines...more.
- 58 min
- 2.8K
- M M Sönmez
Nov 23, 2013 · Make the $n$th line cross $n-1$ lines to get the maximal number of partitions. The first division gives $2$ of course, the second line $4$, and the $3$rd line $7$. For the $4$th line you get $11$ sections by this algorithm: $\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad$
- Full Sections. A Full section view is where the entire part or assembly is cut on a single plane. The generated section view that is created may form part of the same view as the reference view, permitted the correct projection method (first or third angled projection) is used.
- 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.
- Partial Section. A Partial section is used when only a certain portion of a part or assembly is cut in order to show important detail or geometry. The whole part or assembly is not sectioned as that may minimize the other information show.
- Revolved Section. A revolved section is a section that is made at a certain point in a part and revolved 90° to show the cross section of the part. The part can be broken to show the revolved section or the revolved section can be superimposed on the part itself.
Study with Quizlet and memorize flashcards containing terms like Section view, Cutting plane line, Section lining symbols (cross-hatching) and more.
- What Is A Section View?
- Creating A Section view.
- Lines Used in Section Views.
- Rules of Sectioning
A sectional view or a section looks inside an object. Sections are used to clarify the interior construction of a part that can not 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 is this? An ugly rock? Hover your mouse o...
The part is cut using an imaginary cutting plane.The unwanted portion is mentally discarded exposing the interior construction.Cutting Plane Line:Used to show where the object is being cut. (Phantom line type) Section Lines:Used to indicate where the cutting plane cuts the material. Section lines are thin and the symbols (type of lines) are chosen according to the material of the object. Section lines are generally drawn at a 45° angle.
Rule 1: A section lined area is always completely bounded by a visible outline. Rule 2:The section lines in all areas should be parallel. Section lines shown in opposite directions indicate a different part. Rule 3:All the visible edges behind the cutting plane should be shown. Rule 4: Hidden features should be omitted in all areas of a section vie...
Sep 28, 2020 · The third dot lets you draw two lines, cutting two new regions. The fourth dot lets you draw two lines to adjacent dots, each of which cut one new region, and one line to the opposite dot, which crosses a line on the way there so it makes 2 new regions, and we get 1 + 1 + 2 = 4 new regions all told.
People also ask
What are the lines used in a section view?
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How do you draw a section line?
How to create a section view?
What are cutting plane lines?
If the cutting plane appears as an edge in the top and front views and the profile view is sectioned, it is a profile cutting plane. In the drawing you must show the cutting plane line either on front view (with the top sectioned view) or on top view (with the frontal section view), not on both.
