This document discusses mechanical presses. It begins by defining a mechanical press as a machine that can perform cutting and non-cutting processes by applying force without removing chips from metallic or non-metallic sheets. It then outlines the main parts of a mechanical press, including the flywheel, clutch, brakes, driving mechanism, ram, and pitman. It classifies presses based on their power source, number of slides, and frame/construction. Finally, it states that mechanical presses are used for punching, stamping, forming, drawing, embossing, and bending operations in industries like automotive, aircraft, telecommunications, electrical appliances, and utensil making.

1. Power Press
Rampal Singh
Asistant Professor
B.E. (Mechanical), M.Tech (Production Engineering),
Thrice GATE Qualified

2. Outline
• Introduction
• Parts of Mechanical Press
• Type of Press
• Applications

3. Mechanical Press
• “It is a machine by which we can do cutting and non cutting process
by applying force without removing chip on metallic or non metallic
sheet.”

5. Image credit- indiamart

6. Image Source-indiamart

7. Parts of Mechanical Press
• Fly Wheel: The flywheel is mounted at the edge of the driving shaft
and is connected to it through a clutch.
• Clutch: The clutch is used for connecting and disconnecting the
driving shaft with the flywheel when it is necessary to start or stop
the movement of the ram.
• Brakes: The brakes are used to stop the movement of the driving
shaft immediately after it is disconnected from the fly wheel

8. Parts of Mechanical press
• Driving mechanism: The rotary movement of the motor is
converted into the reciprocating movement of the ram by crank and
connecting rod, eccentric and connecting rod in mechanical presses
• Ram: Ram reciprocates to and fro within its guide ways with
prescribed stroke length and power. Ram at its bottom end carries
punch to process the work piece.
• Pitman: It is the part which connects the ram and crankshaft or ram
eccentric.

9. Classification of
presses
Manual Press
Mechanical
Press
Hydraulic Press
Pneumatic
Press
On the basis of
source of power

10. On
the
basis
of
number
of
slides
Single action
press
Double action
press
Triple action press

11. On
the
basis
of
frame
and
construction
Arch – Frame
Presses
Gap Frame
Presses
Straight Side
Presses
Horn Presses

14. Applications of hydraulic Press
• Power presses are used for punching or stamping, forming or drawing
and embossing operation. Press brakes are used for bending
operations.
• Press working is used in large number of industries like automobile
industry, aircraft industry, telecommunication electrical appliance,
utensils making industry are major examples