MACHINING VS. CASTING

1
MACHINING VS. CASTING

• EGR 403
• GROUP 7
• BRIAN JACOBS
• MICHAEL MAYER
• NOAH WINSOR
• MATTHEW YESETA

2
PROPOSAL

• PERFORM COST ANALYSIS ON 2 DIFFERENT PROCESSES
• MACHINING Vs. CASTING
• DETERMINE WHICH PROCESS IS ECONOMICALLY
  BENIFICIAL BASED ON NET PRESENT WORTH ANALYSIS

3
REQUEST FOR QUOTE

• 4 FIN IMPELLER PERSONAL WATERCRAFT APPLICATION
• 6061-T6 ALUMINUM ALLOY
• 3500 PIECES PER YEAR
• MARR IS 12.5
• INFLATION IS 3.5

4
MANUFACTURING PROCESS

• 5-AXIS HIGH SPEED CNC MACHINING

5
MANUFACTURING PROCESS

• MOLTEN ALUMINUM DIE CASTING
• SQUEEZE CASTING

6
CASTING Vs. MACHINING
7
CASTING Vs. MACHINING
8
SENSITIVIY ANALYSIS

• FOR BOTH OPTIONS, CHANGE IN TOTAL INCOME HAD THE
  MOST EFFECT
• 20 CHANGE IN INCOME RESULTED IN 30 CHANGE IN
  PRESENT VALUE (HIGH/LOW)
• FOR CASTING, ELECTRICITY WAS SIGNIFICANT AS WELL
  (LARGER AMOUNT HIGHER SIGNIFICANCE)
• SALVAGE LEAST SIGNIGFICANT

9
SENSITIVITY ANALYSIS
10
CONCLUSION

• WE CHOSE THE MACHINING PROCESS
• EQUIPMENT COST AND MAINTENANCE WERE HIGHER BUT
  COST OF RUNNING OPERATION MUCH LOWER
• HIGH REMOVAL AMOUNT OF MATERIAL MADE UP WITH
  RECYCLING RETURN
• LONGTERM USEFUL LIFE
• LABOR COST HIGH BUT LABOR MORE SKILLED AND
  VERSATILE
• HIGHLY ADAPTABLE PROCESS

11
RESOURCES

• HASS AUTOMATION, INC.
• E-BAY
• CALIFORNIA EDISON
• IMS METALS

12
HELPFUL WEBSITES

• http//www.treasury.gov/
• THIS IS A GOOD SITE FOR INFORMATION ABOUT THE
  OVERALL ASPECTS OF THE ECONOMY
• www.cfo.com
• THIS IS A GOOD SITE FOR INFORMATION ABOUT RUNNING
  A BUSINESS