What do you know about Sydney Life Coaching and Business Coaching? Abundance Coaching
Sectionsرسم
-
Upload
mostafa-yosry -
Category
Business
-
view
1.544 -
download
0
description
Transcript of Sectionsرسم
![Page 1: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/1.jpg)
Section Views
![Page 2: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/2.jpg)
PURPOSES OFSECTION VIEWS
Clarify the views by
Facilitate the dimensioning.
reducing or eliminating the hidden lines.
revealing the cross sectional’s shape.
Let See the example
![Page 3: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/3.jpg)
EXAMPLE : Advantage of using a section view.
![Page 4: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/4.jpg)
Terminology andcommon practices
![Page 5: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/5.jpg)
Cuttingplane
CUTTING PLANE
Cutting plane line
Cutting plane is a plane that imaginarily cuts
the object to reveal the internal features.
Section lines
![Page 6: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/6.jpg)
Cutting plane line is an edge view of the cutting
plane.
CUTTING PLANE LINE
Indicate the pathof cutting plane.
![Page 7: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/7.jpg)
ANSIstandard
Thick line
Thick line
JIS & ISOstandard
Thin line
CUTTING PLANE LINESTYLES
Viewingdirection
Viewingdirection
Viewingdirection
This course
![Page 8: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/8.jpg)
SECTION LINING
Section lines or cross-hatch lines are used to
indicate the surfaces that are cut by the cutting
plane.
Sectionlines
Drawn with 4H pencil.
![Page 9: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/9.jpg)
SECTION LINES SYMBOLS
The section lines are different for each of
material’s type.
Cast iron,Malleable iron
Steel Concrete Sand Wood
For practical purpose, the cast iron symbol is
used most often for any materials.
![Page 10: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/10.jpg)
SECTION LINING PRACTICE
The spaces between lines may vary from 1.5 mm
for small sections to 3 mm for large sections.
COMMON MISTAKE
![Page 11: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/11.jpg)
SECTION LINING PRACTICE
It should not be drawn parallel or perpendicular
to contour of the view.
COMMON MISTAKE
![Page 12: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/12.jpg)
Kinds of Sections
![Page 13: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/13.jpg)
KIND OF SECTIONS
1. Full section
2. Offset section
3. Half section
4. Broken-out section
5. Revolved section (aligned section)
6. Removed section (detailed section)
![Page 14: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/14.jpg)
FULL SECTION VIEWThe view is made by passing the straight cutting
plane completely through the part.
![Page 15: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/15.jpg)
Full Sections In Full Sections, one-half
of the part is removed. (Technically, the cutting
plane may be placed anywhere, but it should always be placed where the most information can be depicted in the resulting section view.)
![Page 16: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/16.jpg)
Full Sections• If the origin of the section view is
obvious to the reader of the drawing, the cutting plane is not considered necessary.
• In this case, it is very clear where the section view originated, so the cutting plane may be removed.
• If no cutting plane is used, no section designators or view labeling is required, so they may be remove also.
A A
SECTION A - A
![Page 17: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/17.jpg)
OFFSET SECTION VIEWThe view is made by passing the bended cutting
plane completely through the part.
Do not show the edge viewsof the cutting plane.
![Page 18: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/18.jpg)
OFFSET SECTION VIEW
![Page 19: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/19.jpg)
OFFSET SECTION VIEW
![Page 20: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/20.jpg)
![Page 21: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/21.jpg)
![Page 22: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/22.jpg)
![Page 23: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/23.jpg)
OFFSET SECTION VIEWD
D
![Page 24: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/24.jpg)
OFFSET SECTION VIEWD
D
![Page 25: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/25.jpg)
TREATMENT OF HIDDEN LINES
Hidden lines are normally omitted from section
views.
![Page 26: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/26.jpg)
HALF SECTION VIEWThe view is made by passing the cutting plane halfway
through an object and remove a quarter of it.
![Page 27: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/27.jpg)
HALF SECTION VIEWA center line is used to separate the sectioned half
from the unsectioned half of the view.
Hidden line is omitted in unsection half of the view.
![Page 28: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/28.jpg)
HALF SECTION VIEW
![Page 29: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/29.jpg)
HALF SECTION VIEW
![Page 30: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/30.jpg)
The view is made by passing the cutting plane normal
to the viewing direction and removing the portion of an
object in front of it.
BROKEN-OUT SECTION VIEW
![Page 31: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/31.jpg)
A break line is used to separate
the sectioned portion from the
unsectioned portion of the view.
BROKEN-OUT SECTION VIEW
There is no cutting plane line.
Break line is a thin continuous
line (4H) and is drawn freehand.
![Page 32: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/32.jpg)
EXAMPLE : Comparison among several section techniques
![Page 33: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/33.jpg)
Revolved sections show cross-sectional features of a part.
No need for additional orthographic views.
This section is especially helpful when a cross-section varies.
REVOLVED SECTION VIEW
![Page 34: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/34.jpg)
REVOLVED SECTION VIEW
Basic concept
![Page 35: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/35.jpg)
REVOLVED SECTION VIEW
Basic concept
![Page 36: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/36.jpg)
Given
Step 1
a. Assign position of cutting plane.
b. Draw axis of rotation in front view.
Steps in construction
REVOLVED SECTION VIEW
Edge view of Edge view of cross-sectioncross-section
![Page 37: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/37.jpg)
Steps in construction
Given
a. Transfer the depth dimension to
the front view.
REVOLVED SECTION VIEW
Step 2
![Page 38: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/38.jpg)
Steps in construction
Given
REVOLVED SECTION VIEW
a. Draw the revolved section.
Step 3
b. Add section lines.
![Page 39: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/39.jpg)
Steps in construction
Given
REVOLVED SECTION VIEW
FINAL PICTURE
![Page 40: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/40.jpg)
Placement of revolved section
1. Superimposed to orthographic view.
SuperimposedBreak
2. Break from orthographic view.
REVOLVED SECTION VIEW
![Page 41: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/41.jpg)
Placement of revolved section
1. Superimposed to orthographic view.
SuperimposedBreak
2. Break from orthographic view.
REVOLVED SECTION VIEW
![Page 42: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/42.jpg)
6. Removed section
Removed section is revolved section.
Used where space does not enough for revolved section
Can be located elsewhere on a drawing with properly labeled
REMOVED SECTION VIEW
Section view is shown outside the view.
![Page 43: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/43.jpg)
6. Removed sectionREMOVED SECTION VIEW
![Page 44: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/44.jpg)
6. Removed sectionREMOVED SECTION VIEW
![Page 45: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/45.jpg)
Example : Revolved vs. removed sections.
Revolved section Removed section
REMOVED SECTION VIEW
![Page 46: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/46.jpg)
Example : Revolved vs. removed sections.REMOVED SECTION VIEW
![Page 47: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/47.jpg)
Example : Situation that removed section is preferred.REMOVED SECTION VIEW
PreferredPoor
Too messy !!
![Page 48: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/48.jpg)
Example : Multiple removed section viewsREMOVED SECTION VIEW
A
A
B
B
SECTION A – A
SECTION B – B
![Page 49: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/49.jpg)
Example : Multiple removed section viewsREMOVED SECTION VIEW
No breaksNo breaks
![Page 50: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/50.jpg)
Example : Multiple removed section viewsREMOVED SECTION VIEW
![Page 51: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/51.jpg)
Dimensioningin Section View
![Page 52: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/52.jpg)
In most cases, dimensioning of the section views
follows the typical rules of dimensioning.
GOODPOOR
![Page 53: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/53.jpg)
GOODPOOR
50
10
50
10
DIMENSIONING
![Page 54: Sectionsرسم](https://reader035.fdocuments.us/reader035/viewer/2022070301/54667b9caf79595d038b6fb0/html5/thumbnails/54.jpg)
For a half-section view,
use dimension line with
only one arrowhead that
points to the position inside
the sectioned portion.
50
DIMENSIONING