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EDMM 1500 - Exam 4 Questions and
Correct Answers/ Latest Update / Already
Graded
TURNING & MILLING Chipmaking Processes
Ans: Definition - Material removal by relative motion between
a tool and a workpiece
Chipmaking - Advantages
Ans: Close dimensional tolerances Hardened materials can be
machined Flexible with regard to geometry a nd materials
Special surfaces quite feasible Tooling universal Small lot runs
not cost prohibitive
Chipmaking - Disadvantages
Ans: Slow More energy intensive than forming or shaping
Material waste usually exceeds 30% Surface quality and
integrity adversely affected
Independent Variables in Chipmaking
Ans: Tool material and its hardness Tool shape, surface finish
and edge sharpness Workpiece material, hardness V = Cutting
Speed d = Depth of cut Use of a cutting fluid
All rights reserved © 2025/ 2026 |
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Dependent Variables in Chipmaking
Ans: - Type of chip produced
- Force required to push tool into workpiece
- Energy required from the machine tool
- Temperature rise in the chip, tool and workpiece
- Surface finish of workpiece
- Surface integrity of workpiece
Idealized Model of Turning
Ans: Cutting Time, t = l / f N
Where: t is time in min.
l is length of cut in inches
f is feed in inches/rev.
N is RPM (rev. per min.)
Cutting Tool Definitions - Turning
Ans: Depth of Cut - d Distance tool is set to cut into the
workpiece (inches) Feed, or Feed Rate - f Distance tool
traverses per revolution of workpiece (inches per rev)
Rotational Speed - N Revolutions per min of workpiece, RPM
All rights reserved © 2025/ 2026 |
EDMM 1500 - Exam 4 Questions and
Correct Answers/ Latest Update / Already
Graded
TURNING & MILLING Chipmaking Processes
Ans: Definition - Material removal by relative motion between
a tool and a workpiece
Chipmaking - Advantages
Ans: Close dimensional tolerances Hardened materials can be
machined Flexible with regard to geometry a nd materials
Special surfaces quite feasible Tooling universal Small lot runs
not cost prohibitive
Chipmaking - Disadvantages
Ans: Slow More energy intensive than forming or shaping
Material waste usually exceeds 30% Surface quality and
integrity adversely affected
Independent Variables in Chipmaking
Ans: Tool material and its hardness Tool shape, surface finish
and edge sharpness Workpiece material, hardness V = Cutting
Speed d = Depth of cut Use of a cutting fluid
All rights reserved © 2025/ 2026 |
, Page |2
Dependent Variables in Chipmaking
Ans: - Type of chip produced
- Force required to push tool into workpiece
- Energy required from the machine tool
- Temperature rise in the chip, tool and workpiece
- Surface finish of workpiece
- Surface integrity of workpiece
Idealized Model of Turning
Ans: Cutting Time, t = l / f N
Where: t is time in min.
l is length of cut in inches
f is feed in inches/rev.
N is RPM (rev. per min.)
Cutting Tool Definitions - Turning
Ans: Depth of Cut - d Distance tool is set to cut into the
workpiece (inches) Feed, or Feed Rate - f Distance tool
traverses per revolution of workpiece (inches per rev)
Rotational Speed - N Revolutions per min of workpiece, RPM
All rights reserved © 2025/ 2026 |
