Objective:
1. To practice arc welding and produce three parallel lines as shown in Figure 1.
2. To practice arc welding for Butt joint as shown in Figure 2.
Time: 3 hrs
Figure 1: Arc welding practice
Figure 2: Butt joint Arc welding
ALL DIMENSIONS ARE IN mm
KATHMANDU
UNIVERSITY
WELDING SHOP
PREPARED BY: ANUP KC
SCALE:
ARC WELDING FOR BUTT JOINT
CHECKED BY: P.L. SHRESTHA
DATE:
LABORATORY WORK MEEG211
APPROVED BY: H.P. NEOPANE
SHEET NO:
Objective:
1. To practice arc welding for lap joint as shown in Figure 3
2. To practice arc welding for Tee joint as shown in Figure 4.
Time: 3 hours
Figure 3: Lap Joint Arc Welding
Figure 4: Tee Joint Arc Welding
KATHMANDU
UNIVERSITY
WELDING SHOP
LAP JOINT AND TEE JOINT
LABORATORY WORK MEEG211
PREPARED BY: ANUP KC
CHECKED BY: P.L. SHRESTHA
APPROVED BY: H.P. NEOPANE
ALL DIMENSIONS ARE IN mm
SCALE:
DATE:
SHEET NO:
Objective:
1. To practice gas welding for pipe joint as shown in Figure 5.
2. To practice gas welding on sheet metal with and without filler rod
Time: 3 hours
Figure 5: Oxy-acetylene Gas Welding of Pipe
KATHMANDU
UNIVERSITY
WELDING SHOP
GAS WELDING OF PIPE
LABORATORY WORK MEEG211
PREPARED BY: ANUP KC
CHECKED BY: P.L. SHRESTHA
APPROVED BY: H.P. NEOPANE
ALL DIMENSIONS ARE IN mm
SCALE:
DATE:
SHEET NO:
Objective:
1. To prepare sand mould with and without pattern as shown in Figure 6.
Time: 3 hours
Figure 6: Sand molding pattern
KATHMANDU
UNIVERSITY
FOUNDRY SHOP
SAND MOLDING AND PATTERN
LABORATORY WORK MEEG211
PREPARED BY: ANUP KC
CHECKED BY: P.L. SHRESTHA
APPROVED BY: H.P. NEOPANE
ALL DIMENSIONS ARE IN mm
SCALE:
DATE:
SHEET NO:
Objective:
1. To use lathe to perform various operations as mentioned below in the job piece
Operations Involved:
1.
2.
3.
4.
5.
Facing
Centre drilling
Straight turning
Radius grooving
Step turning
Job L-01
Operations Involved:
1. Taper turning
2. Drilling
Job L-02
ALL DIMENSIONS ARE IN mm
KATHMANDU
UNIVERSITY
MACHINE SHOP
MACHINING ON LATHE
LABORATORY WORK MEEG211
PREPARED BY: ANUP KC
CHECKED BY: P.L. SHRESTHA
APPROVED BY: H.P. NEOPANE
SCALE:
DATE:
SHEET NO:
Objective:
1. To use lathe to perform various operations as mentioned below in the job piece
Operations Involved:
1. Grooving
Job L-03
Operations Involved:
1. Knurling
2. Threading
3. Chamfering
Job L-04
ALL DIMENSIONS ARE IN mm
KATHMANDU
UNIVERSITY
MACHINE SHOP
MACHINING ON LATHE
LABORATORY WORK MEEG211
PREPARED BY: ANUP KC
CHECKED BY: P.L. SHRESTHA
APPROVED BY: H.P. NEOPANE
SCALE:
DATE:
SHEET NO:
Objective:
1. To use lathe to perform various operations as mentioned below in the job piece
Operations Involved:
1. Tapping
Job L-05
ALL DIMENSIONS ARE IN mm
KATHMANDU
UNIVERSITY
MACHINE SHOP
MACHINING ON LATHE
LABORATORY WORK MEEG211
PREPARED BY: ANUP KC
CHECKED BY: P.L. SHRESTHA
APPROVED BY: H.P. NEOPANE
SCALE:
DATE:
SHEET NO:
Objective:
1. To form a square hook from a straight cylindrical MS rod by hot working the metal
Calculate the initial length of the MS rod required to match the volume of metal in end product.
Show the required calculations and percentage error. Also mention the dimensional deviations
between the designed and actual product.
ALL DIMENSIONS ARE IN mm
KATHMANDU
UNIVERSITY
SMITHY SHOP
HOT WORKING OF METAL
LABORATORY WORK MEEG211
PREPARED BY: ANUP KC
CHECKED BY: P.L. SHRESTHA
APPROVED BY: H.P. NEOPANE
SCALE:
DATE:
SHEET NO:
Guidelines for Lab works
1. Lab Technical officers at different shops will guide the students to carry out the
aforementioned jobs.
2. Students must follow all the safety measures and rules of the specific lab/ shop.
3. Students are required to submit a report about the activities performed in different
shops, at the end of the laboratory work for evaluation followed by viva-voce. The
course instructor will declare the date for the same.
4. The report should contain, for each shop/operations:
a. Theory and working principle
b. Description of tools used
c. Detail procedure of operation
d. Figures/ drawings/ symbols of the job piece and operation
e. Deviations/ error calculations
f. Conclusion
5. Students should prepare a well formatted hand written report. Use A4 sheet with
margins on all the four corners (20 mm on left, and 10 mm on other 3 sides). Use only
single side of the paper.