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Course Title: MACHINE DRAWING |
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Scheme (L:T:P) : 0:2:4 |
Total
Contact Hours: 78 |
Course Code: 15ME34D |
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Type of Course: Tutorial
and practice |
Credit :03 |
Core/
Elective: Core |
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CIE- 25 Marks SEE-
100 Marks |
Course Objectives:
1.
Understanding of drawing, which includes clear
visualization of objects and the proficiency in reading and interpreting a wide
variety of production and assembly drawings.
2.
This course envisages reinforcing and enhancing the
knowledge and skill acquired in the earlier two courses
On successful
completion of the course, the students will be able to:
Course Outcome |
CL |
Linked PO |
Teaching Hrs |
|
CO1 |
Interpret
Conventional symbols as per IS
code SP46. |
R |
1,2,3,10 |
04 |
CO2 |
Understand the
Conventional methods of representing threaded fasteners |
R |
1,2,3,10 |
12 |
CO3 |
Understand the Conventional representation of Riveted
joints |
U/A |
1,2,3,10 |
12 |
CO4 |
Categorize attributes of Production Drawing
and Limits, fits, tolerances |
U |
1,2,3,10 |
06 |
C05 |
Illustrate the significance & use of
tolerances of size, forms & positions |
U |
1,2,3,10 |
06 |
C06 |
Visualize the assembly of a given set of details
of machine components |
U/A |
1,2,3,8,9,10 |
38 |
|
|
Total
sessions |
78 |
Legend: R; Remember, U:
Understand A: Application
COURSE-PO ATTAINMENT
MATRIX
Course |
Programme Outcomes |
|||||||||
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
|
MACHINE DRAWING |
03 |
03 |
03 |
- |
- |
- |
- |
2 |
2 |
3 |
Level 3- Highly Addressed, Level
2-Moderately Addressed, Level 1-Low Addressed. Method is to relate the
level of PO
with the number
of hours devoted to the COs
which address the
given PO. If >40% of classroom sessions addressing a particular PO,
it is considered that PO is
addressed at Level
3 If 25 to 40% of
classroom sessions addressing a particular PO,
it is considered that PO is
addressed at Level
2 If 5 to 25% of
classroom sessions addressing a particular PO,
it is considered that PO is addressed at Level 1 If < 5% of classroom sessions
addressing a particular PO, it is considered that PO is considered
not-addressed. |
COURSE CONTENT AND BLUE PRINT OF
MARKS FOR SEE
Unit No |
Unit Name |
Hour |
Questions to be set for SEE |
Marks weightage |
weightage (%) |
||
R |
U |
A |
|
|
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1 |
CONVENTIONAL REPRESENTATION |
04 |
15 |
-- |
--- |
15 |
11.5 |
2 |
THREADED FASTENERS |
12 |
--- |
-- |
15 |
15 |
11.5 |
3 |
RIVETED JOINTS |
12 |
-- |
--- |
15 |
15 |
11.5 |
4 |
LIMITS, FITS AND TOLERANCES |
06 |
--- |
15 |
-- |
15 |
11.5 |
5 |
PRODUCTION DRAWINGS |
06 |
-- |
--- |
--- |
--- |
------ |
6 |
DETAILS TO ASSEMBLY |
38 |
-- |
--- |
70(*) |
70(*) |
54 |
|
Total |
78 |
15 |
15 |
100 |
130 |
100 |
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Legend: R; Remember, U: Understand
A: Application (*): Compulsory question to be answered
Standard
convention using SP – 46 (1988)-Materials C.I., M.S, Brass, Bronze, Aluminum,
wood, Glass, Concrete and Rubber-Long and short break in pipe, rod and shaft.-
Various sections- Half, removed,-Standard convention of Knurling, splined
shafts, and chain wheels- Springs with square and flat ends, Gears, sprocket
wheel-Countersunk &counter bore
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Screw thread
terminology-Conventional representation of External threads and internal
threads- Draw the top and front view of hexagonal headed bolt with nut across
flat and corner-Draw - square headed bolt across corner and flat-cylindrical
headed bolt-Eye bolt-Locking devices-Draw the views of for standard
dimensions-lock nut-castle nut-Studs-Tap bolt-Machine screws- washers-Keys-sunk
key-Gib head key.(For a given standard diameter with proportions)
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Rivets-types-Types of riveted joints-Draw the sectional front view and
top view of-single riveted
lap joint, double riveted
lap joint with chain riveting and zigzag riveting. Draw the sectional front
view and top view of-single riveted butt joint with single and double cover plate
- double riveted butt joint with chain riveting and zigzag riveting with double
cover plate.
Concept of
limits, fits & allowances--Introduction to ISO system of
tolerance,-dimensional
tolerances-Draw the working drawing plain step
turned shaft of varying diameter, indicate the dimensional tolerances
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Surface roughness-Indication of
machining-symbol showing direction of lay, roughness
grades,
machining allowances, Machining symbols used in industry
(Suggested Practice:Disassembling of any
Physical model having not less than five parts, sketch the minimum views
required for each component, measure all the required dimensions of each
component.)
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Introduction to the unit
assembly drawing, steps involved in preparing assembly drawing from
Details-Sequence in assembly-Preparation of details and Assembly of parts with
Sectional views of- Socket and Spigot
joint Cotter Joint-- Knuckle joint- Protected Flanged coupling- Universal
coupling-Plummer Block and Screw Jack (Front, side and top views)
®TEXT BOOKS
1. Machine drawing, -K.R. Gopala Krishna Subhas Publishers,
Bangalore
REFERENCES
1. Machine Drawing- N.D.Bhatt, Charotar Publication, Anand
2. Machine
Drawing-Sidheshwar-Tata McGraw Hill
3.
Code of practice for general engineering-IS Code SP 46(1988)-
Engineering Drawing Practice for School and
colleges
4.
Production Drawing-L.K.Narayanan,P.Kannaich,- New Age International Publication
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Note: the following activities related to unit 5 and for assessing
CIE(IA)
1.
Each student should submit any one of the following type activity or
any other similar activity related to the course and before take up get it approved
from concerned Teacher and HOD.
2. Each student should conduct
different activity and no repeating should occur
1 |
Select at least four simple mechanical
components each made up of minimum 5-6 Manufacturing operations. Get them
approved by teacher. Measure and sketch them in a drawing sheet with dimensions. |
2 |
Select at least one simple
mechanical assembly in group of 5-6 students, each made up of minimum 5-6
manufacturing operations. Get them approved by teacher. Measure and sketch
them in a drawing sheet with dimensions. Example- assembly of any coupling, carburetor, machine vice, fuel pump, tail stock
etc. |
3 |
Bring Actual assembly from workshop/industry, measure dimensions,
sketch it and make 2D
production drawing for the same. |
Course Delivery:
The course will be delivered through
lectures and Demonstration and practices
NOTE:.
1. Students should use two
separate A3 size sketchbooks, one for
class work and another for assignment.
2. Students should solve
assignment on each topic. The sessional marks will be awarded on the basis of
Graded exercises and assignment
3. Use half imperial size
drawing sheet for term work
MODEL OF
RUBRICS /CRITERIA FOR ASSESSING STUDENT ACTIVITY
RUBRICS FOR ACTIVITY( 5
Marks) |
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Dimension |
Unsatisfactory |
Developing |
Satisfactory |
Good |
Exemplary |
Student Score |
1 |
2 |
3 |
4 |
5 |
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Collection of data |
Does not collect any information relating to the topic |
Collects
very limited information; some relate to the topic |
Collect
much information; but very limited relate to the topic |
Collects some basic information; most refer
to the topic |
Collects a great deal of information; all refer to the topic |
Ex:
4 |
Fulfill
team’s roles & duties |
Does
not perform any duties assigned
to the team role |
Performs very little duties but unreliable. |
Performs
very little duties |
Performs nearly all duties |
Performs
all duties of assigned
team roles |
5 |
Shares
work equally |
Always
relies on others to do the work |
Rarely does the assigned work; often needs reminding |
Usually does the assigned work; rarely needs reminding |
Normally
does the assigned work |
Always does the assigned work without having to be
reminded. |
3 |
Listen to other
Team mates |
Is
always talking; never allows anyone else to speak |
Usually does most of the talking; rarely allows others to speak |
Talks good; but never show interest in listening
others |
Listens,
but sometimes talk too much |
Listens
and speaks a fair amount |
2 |
Average / Total
marks=(4+5+3+2)/4=14/4=3.5=4 |
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Note: This is only an example.
Appropriate rubrics/criteria may be devised by the concerned faculty (Course
Coordinator) for assessing the given activity.
Course Assessment and Evaluation
Scheme:
|
What |
To whom |
When/Where (Frequency in the course) |
Max Marks |
Evidence collected |
Course outcomes |
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CIE |
IA |
Students |
Graded Exercises- Average marks all graded exercises to be computed. |
20 |
Drawing Sheets |
1.2,3,4,5,6 |
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SEE End Exam |
Student activities |
05 |
Log of activity |
1.2,3,4,5,6 |
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End course |
of |
the |
100 |
Answer scripts at BTE |
1.2,3,4,5,6 |
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Student Feedback on course |
Students |
Middle of the course |
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Feedback forms |
1, 2,3 Delivery of course |
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End Survey |
of |
Course |
End course |
of |
the |
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Questionnaires |
1,2,3,4,5,6- Effectiveness Delivery instructions Assessment Methods |
of of & |
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*CIE – Continuous Internal Evaluation *SEE – Semester End Examination
Note:
1. Rubrics
to be devised appropriately by the concerned faculty to assess Student
activities.
Note to IA
verifier: The following documents to be verified by CIE verifier at the
end of semester
1. Drawing sheet files ( Two
/Three students)( 20 marks)
2. Student suggested activities
report for 5 marks
3.
Student feedback on course regarding Effectiveness of Delivery of
instructions & Assessment Methods.
NOTE:THIS
SUBJECT SHOULD THOUGHT IN A BATCH OF 15 TO 20 STUDENTS,TEACHER
INCHARGE
PER BATCH HAS TO MONITER, EVALUATE OR ASSESS THE STUDENTS.