3102 design ppt
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Transcript of 3102 design ppt
MANUFACTURING PROCESS FOR AN
ALUMINUM ALLOY PISTON
Group 5Eugene Oo
What is a piston?
Component of engines, reciprocating pumps, gas compressors and pneumatic cylinders.
Moving component contained by a cylinder and is made gas-tight by piston rings.
In an engine, its purpose is to transfer force from expanding gas in the cylinder to the crankshaft via a piston rod and/or connecting rod.
In a pump, the function is reversed and force is transferred from the crankshaft to the piston for the purpose of compressing or ejecting the fluid in the cylinder
Components of a typical, four stroke cycle, DOHC piston engine. (E) Exhaust camshaft, (I) Intake camshaft, (S) Spark plug, (V) Valves, (P) Piston, (R)Connecting rod, (C) Crankshaft, (W) Water jacket for coolant flow.
http://www.animatedpiston.com/BMW.htm
So how and what?
Function- Piston Objective- Minimize Cost(priority) +
Maximize Safety Constraints- Al Alloy, 0.8-1kg,4-6mm,3D,
0.5mm, 5um, 1000 or 10000 pieces Variable- Shaping process
For Al alloy
0.8-1kg
4-6mm
3D
0.5mm
5um
1000 or 10000 pieces
What is Left?
Investment Casting -1000 Forging -Both Powder Methods -10,000 Conventional Machining -Both
COSTS $$$
Cost Comparison
Between the 3
Thank You