MACHINE SHOP | Metal cutting operations and Machine tool parameters | DIPLOMA


Course Title: MACHINE SHOP

Scheme (L:T:P) : 0:2:4

Total Contact Hours: 78

Course Code:

15ME46P

Type of Course: Tutorial and practice

Credit :03

Core/ Elective:

Core(practice)

CIE- 25 Marks                                                                                                          SEE- 50 Marks

Prerequisites: Theoretical concepts Machine tool Technology

 

 Course Objectives:                                                                                                             

 

1.     To understand Constructional features of basic machine tools

2.     To know the various Metal cutting operations and Machine tool parameters

 

 Course Outcomes:                                                                                                  

On successful completion of the course, the students will be able to attain CO:

 

Course Outcome

CL

Linked Shops

Linked PO

Teaching Hrs

 

 

CO1

Acquire skill on working of general

purpose machine tools and on various manufacturing processes.

 

U/A

 

-

1,2,3,4,5,6

,7,8,10

 

24

 

 

CO2

Create model by demonstrating various turning operation

 

U/A

Turning models

exercises

1,2,3,4,5,6

,7,8,10

 

12

 

 

 

CO3

 

Develop a model by demonstrating various drilling and grinding operation

 

U/A

Drilling, grinding model

exercises

 

1,2,3,4,5,6

,7,8,10

 

12

 

 

CO4

Create model by demonstrating various shaping operation

 

U/A

Shaper

models exercises

1,2,3,4,5,6

,7,8,10

 

24

CO5

Create model by demonstrating various Milling operation

 

U/A

Milling

models exercises

1,2,3,4,5,6

,7,8,10

 

06

 

 

 

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 SHOP

3

3

3

3

3

3

3

3

-

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

 

 

Unit No

 

 

Unit Name

 

Hour

1

TURNING PRACTICE

24

2

DRILLING PRACTICE

12

3

SHAPING PRACTICE

12

4

MILLING PRACTICE

24

5

GRINDING PRACTICE

06

 

Total

78

 

 

Text Box: UNITI: TURNING PRACTICE	24Hrs

 

Demonstration and detailed explanation of Machine tools (Ordinary lathe/capstan/Turret Lathe) and work holding devices used-Description and specification of Cutting tools required for creating model–Various Turning operations performed in Machine shop-Safety practices to be observed-Clean the machine after operation

 

Hands on Experience

1.     Turning practice on mild steel specimen to an accuracy of ± 0.25 mm.

2.     Preparing at least ONE model involving the following operations. Plain Turning, Step Turning, Taper Turning, Knurling, Thread cutting

 

 

Text Box: UNTII: DRILLING PRACTICE	12Hrs

 

Demonstration and detailed explanation of Machine tools (Radial drilling Machine) and work holding devices used-Description and specification of Cutting tools required for creating


model–Various Drilling operations performed in Machine shop-Safety practices to be observed-Clean the machine after operation

Hands on Experience

1.  Preparation of    ONE model with two or three different sizes holes for different materials at different locations

Text Box: UNITIII: SHAPING PRACTICE	12Hrs

 

Demonstration and detailed explanation of Machine tools (Shaper) and work holding devices used-Description and specification of Cutting tools required for creating model–Various Shaping operations performed in Machine shop-Safety practices to be observed-Clean the machine after operation

Hands on Experience

1. Preparation of ONE model with Shaping step block cut dovetail to angles 60

 

Text Box: UNITIV: MILLING PRACTICE	24 Hrs

 

Demonstration and detailed explanation of Machine tools (MILLING MACHINE) and work holding devices used-Selection and specification of Cutting tools required for creating model–Various Milling operations performed in Machine shop-Safety practices to be observed-Clean the machine after operation

Hands on Experience

1. Preparation of ONE model Milling-square-hexagon, Spur gear teeth, Key way from round bars with indexing and without indexing

Text Box: UNITV: GRINDING PRACTICE	06Hrs

 

Demonstration and detailed explanation of Machine tools (Grinding) and work holding devices used-Selection and specification of Grinding wheels required for creating model–The grinding operations performed in Machine shop-Safety practices to be observed-Clean the machine after operation

Observe on Experience

1. The Grinding Single point cutting tool for required angle

Text Box: SUGGESTED LIST OF STUDENT ACTIVITYS

®Elements of Workshop Technology (Vols. 1 and II) by Hajra Chaudhary

Note: the following activities or similar activities for assessing CIE (IA) for 10 marks (Any

one)

1.                        Each student should do any one of the following type activity or any other similar activity related to the course and before conduction, get it approved from concerned Instructor and Foreman with an intimation to HOD

2.                         Each student should conduct different activity and no repeating should occur

 

1

Take the students for local Machine shop observe the Machining practices followed in the

industry and submit an hand written report of 500 words

2

Ask the students to observe the Various machining operations carried out in a sample


 

component and submit an hand written report of 500 words

3

Take the students for industrial visit for a nearby MSME; observe the safety practices followed and Study Various operational activities. and submit an hand written report of

500 words

 

 Course Delivery:                                                                                                             

The course will be delivered through Demonstration and Shop practices

 

Course Assessment and Evaluation Scheme:

 

 

What

To whom

When/Where (Frequency     in

the course)

Max Marks

Evidence collected

Course outcomes

Direct Assessment meth

CIE

IA

Students

Activities

10

Blue Book

2,3,4.5

Record                        

Average marks of                 graded exercises to be computed

15

Graded exercises

2,3,4,5

SEE

End

Exam

End

course

of

the

50

Answer

at BTE

scripts

1,2,3,4,5

Indirect Assessment

Student Feedback

on course

Students

Middle

course

of

the

 

Feedback forms

1,2,3 Delivery

of course

End     of           Course Survey

End course

of

the

 

Questionnaires

1,2,3,4,5

Effectiveness of Delivery of instructions & Assessment

Methods

Note: 1. The activity related exercises shall be evaluated as per the Rubrics developed by the concerned department related to the course.

2.    The course related graded exercises to be evaluated as per performance mentioned in SEE scheme of evaluation.

 

Note to IA verifier: The following documents to be verified by CIE verifier at the end of semester

1.       Blue books ( Activity for 10 marks)

2.       Student feedback on course regarding Effectiveness of Delivery of instructions & Assessment Methods.

 

 

Scheme of Valuation for End Examination                                                   Note: Any one model in any one practice

Serial no

Description

Marks

1

Listing of tools & operations required for

performing job

05

2

Marking of job

05

3

Operation performed

15

4

Dimensional accuracy of job

15

5

Finishing of job

10

 

TOTAL

50


 EQUIPMENT LIST:                                                                                                             

1.     Turret and Capstan Lathes 01

2.     Horizontal Milling Machine 01

3.     Vertical Milling Machine 01

4.     Surface Grinding Machine 01

5.     Cylindrical Grinding Machine 01

6.     Shaper 02

7.     Planner 01

8.     Radial Drilling Machine 01

9.     Power tools-Drilling

10.  Power tools-grinding

11.  Power tools-polishing

12.  Cordless screw driver

 

 

 

                      GENERAL INSTRUCTION IN WORK SHOP           

1.              Every student should obtain a set of instruction sheets entitled manufacturing processes Laboratory.

2.              For reasons of safety, every student must come to the laboratory in shoes. it is unsafe for the students to come to the laboratory wearing garments with parts that that hang about loosely. Students should preferably Use half-sleeve shirts. The Students should also ensure that floor around the machine is clear and dry (not oily) to avoid slipping.

3.              An apron will be issued to each student. Students not wearing an apron will not be permitted to the work in the laboratory.

4.              Instruments and tools will be issued from the tool room. Every student must produce his identity card for the purpose. Tools, etc. must be returned to the tool room on the same day.

5.              The student should take the permission of the Lab Staff / Tutor before handling any machine.

6.              The student should not lean on the machine when it is working.

7.              Power to the machines will be put off 10 minutes before the end of laboratory session to allow the students to return the tools.

8.              Students are required to clear off the chips from the machine and lubricate the guides etc. at the end of the session.

9.              Laboratory reports should be submitted on blue Book.

10.           Blue Book will not be returned to the students.


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