MACHINE SHOP-2 Fourth Semester DIPLOMA COURSE IN MECHANICAL ENGINEERING

Department of Technical Education

DIPLOMA COURSE IN MECHANICAL ENGINEERING

Fourth Semester

SUBJECT: MACHINE SHOP-II

Contact Hrs/Week: 06                                                                                                 Contact Hrs/Sem: 96

Sl.No.	TOPIC	Hrs Allotted
1	Practice on Drilling machine	14
2	Practice on shaper and slotter	15
3	Practice on planner	09
4	Practice on milling machine	25
5	Practice on grinding machine	12
6	Practice on erection commissioning and maintenance	12
7	Industry Institute  Interaction	05
8	Tests an Revision	04
	Total	96

Note:1) Item 6 should be taught during the training hours at relevant intervals

2) The practice on lathe Machine tool should not be carried in this shop practice

On the completion of the course the student should be able to:

1.0              Know the working of Drilling machine, shaper, slotter, planer, milling machine, grinding machines and be in a position to operate the same.

1.1              Perform a drilling operation on a radial drilling machine

1.2              Perform a Shaping, slotting operation on a horizontal shaper and slotter

1.3              Perform a planning operation s on a planer

1.4              Perform a milling operation on a column and knee type milling machine

1.5              Gear teeth should be cut on a round blank by using milling machine(Spur gear teeth only)

1.6              Perform a grinding operation on work piece only

1.7              Make use of various measuring instruments for taking dimensions.

1.8              Produce articles of industrial application such as Spur gear, square headed bolt, V- block

  PRACTICE EXERCISES

1.0       DRILLING EXERCISE (Three models)

            1.1 Preparation of model with two or three different sizes holes for different                                        materials

            1.2 Preparation models of different holes by maintain minimum distance between                                them           

2.0              SHAPING SQUARE            (Three models)

2.1              Hexagon on a round bar, key ways, grooves splines,

2.2              Shaping step block cut dovetail to angles 60, 90, 120 degrees.

3.0       SIMPLE PLANNING EXERCISE CUTTING 'T' SLOTS (One model)         

4.0       PRACTICES ON MILLING MACHINE (Three models)

            4.1 Milling-square-hexagon from round bars with indexing and without indexing

            4.2 Milling key ways of different types

            4.3 Generation of spur gear teeth on a round bar.

            4.4 Milling flutes of a twist drill

            4.5 Milling splines and T-slots

5.0       MOUNTING BALANCING AND DRESSING OF GRINDING WHEELS                          

        5.1 Grinding flat surface on a surface grinder using magnetic chuck and clamping devices

            5.2 Cylindrical grinding of external surface and internal surface

                  using universal grinding machines

5.3  Grinding Cutting tools to the required angles

5.4  Grinding of milling cutters etc, on a tool and cutter grinder

B) SERVICE EXERCISES

            1) The dismantling some of the components of drilling machine and service, assemble                        the same

            2) The dismantling some of the components of shaper head and then assemble the same

            3) The dismantling some of the components of Milling machines and service, assemble                      the same

            4) Servicing of universal grinding machine

 

C) Maintenance practice and preparing overhauling of machines in machine shops

 

 

 

SCHEME OF VALUATION

Serial no	Description	Marks
1	Listing of tools & operations required for performing job	05
2	Marking of job	05
3	Operation performed	20
4	Dimensional accuracy of job	15
5	Finishing of job	20
6	One question on servicing aspects of Machine tool	15
7	Viva	20

                                                                                                Total                              100