Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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Draw front and right-side views of the following object with a
completed dimensions. Draw in scale 1:1 on A4 sheet.
(Problem is taken from "Graphics for Engineers' by Earle)
78
What can we learm from the drawlng ?
1. The dimension note M10x1.5 means that the hole is a threaded hole.
R16
O 16, 2 Holes
The letter 'M' means that the threads are made by following a metric
thread system. The number "10" Is the major dlameter of the hole and
the number 1.5 is the pitch of a thread. However, for coarse threads, it
is a common practice to omit specifying the pitches. For example, a
note M10 means the pitches of the thread is 1.5 mm. In this book, the
pitch is specified in order to facilitate drafting.
2. Drawing symbol of a threaded hole is shown below.
- Thin Ine (4H pench
The ends of this arc
does not meet together
but approximately 90
degs, apart.
Object Ihe
(2i pencil
.major dlameter
pich2
M10x1 5
3. The circular projection surface at a threaded hole that is raised
from a cylinder is called "Boss'. Usually, the top surface of a bos
is a finished surface to make a smooth seat for fastener. The
following figure shows a side view of a boss with a drilled hole.
Driled
hole
50
Not to scale.
046
O 68
NOTE : All fillets and rounds are 3 mm
FRONT VIEW
YOKE
Boss
CylInder
unless otherwise specified.
ORTHOGRAPHIC WRITING
PAGE 4-21
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Transcribed Image Text:Draw front and right-side views of the following object with a completed dimensions. Draw in scale 1:1 on A4 sheet. (Problem is taken from "Graphics for Engineers' by Earle) 78 What can we learm from the drawlng ? 1. The dimension note M10x1.5 means that the hole is a threaded hole. R16 O 16, 2 Holes The letter 'M' means that the threads are made by following a metric thread system. The number "10" Is the major dlameter of the hole and the number 1.5 is the pitch of a thread. However, for coarse threads, it is a common practice to omit specifying the pitches. For example, a note M10 means the pitches of the thread is 1.5 mm. In this book, the pitch is specified in order to facilitate drafting. 2. Drawing symbol of a threaded hole is shown below. - Thin Ine (4H pench The ends of this arc does not meet together but approximately 90 degs, apart. Object Ihe (2i pencil .major dlameter pich2 M10x1 5 3. The circular projection surface at a threaded hole that is raised from a cylinder is called "Boss'. Usually, the top surface of a bos is a finished surface to make a smooth seat for fastener. The following figure shows a side view of a boss with a drilled hole. Driled hole 50 Not to scale. 046 O 68 NOTE : All fillets and rounds are 3 mm FRONT VIEW YOKE Boss CylInder unless otherwise specified. ORTHOGRAPHIC WRITING PAGE 4-21
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