aluminum forging presentation
DESCRIPTION
this presentation takes about 1- Presence of aluminum , importance and Applications 2- Forging operation , importance and answering the question why forging parts have high strength 3- its Main topic Connecting rod working principle , Stresses applied on it 4- Material which connecting rod made from , chemical composition and discussing the effect of alloying elements 5- Explaining the manufacturing operation, working tempertaure and Strengthening mechanism happens during forging process 6- Die which used in forging operation and requirements which must be in the die 7- chemical composition of selected die and effects of some alloying elements in itTRANSCRIPT
Aluminum forging
Materials Technology Project
Under supervision of: Dr.-Ing. Islam El-Galy
Contents
Introduction
Choosing Forging operation
Main Project Part (Connecting Rod)
Part Material
Manufacturing Operation
Die material
Conclusion
Introduction
Aluminium has since been identified as the most common metal on earth, forming about eight percent of the earth's crust. It is the third most plentiful element known to man.
A number of unique and attractive properties account for engineering significance of aluminium .These include its workability ,light weight ,corrosion resistance and good electrical and thermal conductivity.
Aluminium has a specific gravity 2.7 compared to 7.85 for steel , making aluminium about one -third the weight of steel for an equivalent.
Forging operation
The Natural Development of Manufacturing requirements urges the need for high quality reliable Products.
Forging can produce a piece that is stronger than an equivalent cast or machined part. As it offers high strength for the forged products, So it is used in Automobile Industry and aerospace industry so many Industries.
Connecting Rod
Connecting rod is one of the most crucial components in any Internal Combustion engine.
It’s a rod that connects the piston to the crank shaft.
It’s convert the Reciprocating motion of the piston to an angular motion to the crank shaft.
Stresses on Connecting Rod
The connecting rod is under tremendous stress from the reciprocating load represented by the piston, actually stretching and being compressed with every rotation, and the load increases to the square of the engine speed increase.
Failure of a connecting rod due to this fatigue stress is one of the most common causes of catastrophic engine failure in cars.
Connecting Rod Material
As it is subjected to cyclic fatigue, thus the selected Aluminum alloy the 7000 series alloy 7075-T6 which have a Tensile strength of 570 MPa and a proof strength of 505 Mpa.
Alloy 7075-T6
Manufacturing Operation
We produce the Connecting Rod using the Close Die forging operation.
the billet is heated up to temperature 350 to 450 Degrees Celsius.
Strength increased after forgingdue to fine graining mechanism happens in process.
Die design
Die materials must have strength and toughness at elevated temperatures, hardenability, resistance to thermal shock, wear resistance.
From Steel Designation H11 means Strain hardening only
Die design
Die materials must have strength and toughness at elevated temperatures, hardenability, resistance to thermal shock, wear resistance.
Chromium increases Corrosion resistance
Chromium , vanadium and molybdenum each combine with carbon to form Carbides which increases Wear resistance.
Conclusion Presence of aluminum in earth crust , importance
and applications
Importance of Forging process and its applications in industry
Connecting rod working principle and stresses applied in
Aluminum alloy 7075 T6 , its chemical composition and effect of major alloying element (Zinc) in it
Manufacturing operation
Manufacturing considerations as Die Material
Chemical composition of Die Material
Thank you
MahmoudKhairy
TokaMohamed
MohamedSamir
MohamedIbrahim
KhulodAmer