To understand the working of a pneumatic hacksaw and replicating a working prototype. An Engineers day project for Christ University Faculty of Engineering, Bangalore. Event name- ICE TECH 2017

1. Automated Portable
Pneumatic Hacksaw
Engineers day project
GROUP:
Shibin Babu 1661451 , Philbert Mendonca 1661441 , Akhil Harold 1661402 , Andre Mascarenhas 1661407 , Mohammed Akhil 1661516
GUIDED BY:
Prof. Sajna Panigrahi

2. Contents
Sl. No. TOPIC No. of Slides
1 Why do we need an Automated hacksaw? 1
2 How does it work? 1
3 Components Used 2
4 Comparison (with manual cutting) 1
5 Future work on Project 1

3. Why do we need an Automated hacksaw?
• Reduces the production time with higher production volume.
• Increased safety as there is no need to deal with the blade manually.
• Reduced human error
• Decreased labor cost and number of laborers.
• Pneumatic system is a cheaper, safer and a more flexible alternative to
electric motors and actuators.

4. How does it work?
Battery
800XC
Timer
Air Tank
Pressure
Switch
Compressor
(5/2 Solenoid valve)
(Double acting
Pneumatic
Cylinder)

5. Components Used
1. Air Compressor -10 bar
2. Linear motion bearings with C45
Alloy guideways
3. Hacksaw frame with HCC blade
4. Bench Vise
5. Screw Jack
0
1
1
1
1
2
3
4
5
1

6. Components Used
6. 12V Battery
7. 5/2 Way Solenoid Valve
8. Air Tank
9. 800XC Cyclic Timer
10. Pressure Switch
11. Double Acting Piston
6
7
18
19
10
11

7. Comparison
Material Manual Hacksaw cutting Automated Hacksaw
Al(5mm) 42.16 30.56
Al (25mm) 172.42 160.34
Nylon (12mm) 11.28 8.02
Hollow Mild steel (1mm) 78.42 65.11
Time (in seconds)

8. Future Work on Project
• Use Rectifier to take power from AC source instead of a battery.
• Fully automate the project using Arduino programming.
• Use stepper motor to rise workpiece on vise.
• Use a FSR sensor to activate stepper motor.
• Take input through keypad and display with LCD screen.
• Given input determines how much the machine should cut of the work piece
in centimeter and millimeter.