Hydraulic Press

Index  Title 1  Abstract Abstract.. .. 2  Introduction. 3  Advantages Advantages  4,5  Components. 6,15  References References and Results. 16  Summary. 17

HYDRAULIC PRESS

The Design

Abstract

and manufacture a hydraulic press up to 15 Ton

Introduction. The hydraulic press is one of the oldest of the basic machine tools. In its modern form, is well adapted to presswork ranging from coining jewelry to forging aircraft parts. Modern hydraulic presses are, in some cases, better suited to applications where the mechanical press has been traditionally more popular.

Advantages of Hydraulic Presses : The mechanical press has been the first choice of many press users for years. The training of tool and die makers and manufacturing engineers in North America has been oriented toward applying mechanical presses to sheet-metal pressworking. Modern hydraulic presses offer good performance and reliability. Widespread application of other types of  hydraulic power equipment in manufacturing requires maintenance technicians who know how to service hydraulic components. New fast acting valves, electrical components, and more efficient hydraulic circuits have enhanced the performance capability of hydraulic presses.

Factors That May Favor the

Use of a

Hydraulic Press Factors

that may favor the use of hydraulic presses over their mechanical counterparts may include the following: 1. Depending on the application, a hydraulic press may cost less than an equivalent mechanical press. 2. In small lot production where hand feeding and single stroking occurs, production rates equal to mechanical presses are achieved. 3. Single stroking does not result in additional press wear. 4. Die shut heights variations do not change the force applied. 5. There is no tonnage curve derating factor. 6. Forming and drawing speeds can be accurately controlled throughout the stroke. 7. Hydraulic presses with double actions and or hydraulic die cushions are capable of  forming and drawing operations that would not be possible in a mechanical press.

Components Motor.. Pump Piston.. Frame..

Pipes. Hydraulic Oil Pressure Gauge. Control Valve..

Motor

YC

Type YC100L2 - 4

50 Hz Cont / B

Capacitor induction motor

1

phase

220

V

IP 44

No 1007071796

2

HP

12.4

A

Made In China

1460

RPM

DATE

2010 8

Pump Max pressure = 300 bar = Oil flow direction

Motor + Pump

Piston Inlet diameter = 4.5 cm Outlet diameter = 10 cm Area of piston =

= 15.9

Max daylight = 34 cm Min daylight = 22 cm Stroke of piston = 12 cm

Frame

Daimention Tank = 50x39x30 cm A = 237 cm B = 188 cm D = 100 cm C = 114 cm K = 68 cm L = 100 cm F = 34 cm E =22 cm J = 40 cm

Pipes Diameter

= 12 mm

Piston inlet pipes length = 63 cm Piston outlet pipes length =56cm Tank inlet pipes length = 140 cm Tank outlet pipes length = 155cm

Lubrication Hydraulic presses have very few moving parts. Those parts that do move, operate in a flood of pressurized oil, which serves as a built-in lubrication system. Should leakage occur, it is usually caused by the failure of an easily repairable part such as the ram packing, or a loose fitting. Hydraulic Oil No

=

=

Assume volumetric efficiency = 95% Overall = 90% Volume of oil in max stroke =

xL = 190.8

=0.19L

Pressure Gauge Scale from 0 to 700 bar for measuring the oil pressure.

Directional Control Valve 2/3 (Two operation,Three position)

Results and Ref erence Results : Max Pressure = 300 bar = Max Force = P x A = N Max daylight= 34 cm Min daylight= 22 cm Stroke of piston = 12 cm Hydraulic Press Speed: Close = 0.78 m/s Hydraulic Press Speed: Open = 1.12 m/s Time Off Long Stroke Length= 15.35 sec Time Off Short Stroke Length= 10.7 sec Flow rate : = L/s Hydraulic power : = kw , Input power :

Ref erence : Dr. Omar Koura

=

kw

Summary Design

and manufacture a hydraulic press up to 15 Ton The Type of Press Frame: H type Maximum pressure = 300 bar = Maximum force = N Time off long stroke length= 15.35 sec Time off short stroke length=10.7 sec Hydraulic press speed: Close = 0.78 m/s Hydraulic press speed: Open = 1.12 m/sec Detected problems : The project need a relive valve to return the oil to the tank when it pass the maximum pressure for safety Future: Add a control system to transform the hydraulic press from manual to automatic