1. Manufacturing process for analuminum alloy piston Group 5 Eugene Oo

2. 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

3. 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

4. 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

5. For Al alloy

6. 0.8-1kg

7. 4-6mm

8. 3D

9. 0.5mm

10. 5um

11. 1000 or 10000 pieces

12. What is Left? Investment Casting -1000 Forging -Both Powder Methods -10,000 Conventional Machining -Both

13. COSTS $$$

14. Cost Comparison

15. Between the 3

16. Thank You 