Intro/Life Of Machining

Question 1

4 example of manufacturing process

Answer 1

1. Casting
2. Forming
3. Welding
4. Material Removal

Question 2

4 criteria when selecting manufacturing process

Answer 2

Quality
Flexibility
Cost
Factors - Spd/performance/shape/size

Question 3

What is machining?

Answer 3

-material removal/sf mod
-after production

Question 4

Independent variables for machining op

Answer 4

• Tool
• workpiece
• fluid
• workholding

Question 5

Dependable variable of machining op

Answer 5

• chips
• force/energy
• Temp
• wear/failure
• SF

Question 6

Type of Chips and solutions to avoid/causes

Answer 6

• Continuous chips (chip breaker)
• Built-up edges chips (increase rake angle)
• Discontinuous chips (cuz:brittle/low rake)
• Serrated Chips (cuz: low thermal/strength)

Question 7

Wear patterns on tools

Answer 7

• Flank wear
• crater wear
• chipped cutting edge
• thermal cracking
• built up edge
• catastrophic failure

Question 8

What happened when dulled tool is used

Answer 8

• negative rake angle by dullness
• tool ride over workpiece
• burnish surface
• raise temp
• surface residual stress