Reference no: EM13289232
1. Convention Milling or ( Up-Milling ) can best be described as:
The Feed Direction of the table is in the “same direction”of the cutter.
The Feed Direction of the table is “opposite the direction” of the cutter
Is the preferred choice when milling
None of the above
2. The Selection of Helix Angle for (End Mills) is based on the machining task.
Aluminum can” best” be machined with a Helix Angle of?
Low Helix Angle around 12°
High Helix Angle 45°
Medium Helix Angle 30°
All of the above
3. A fellow student needs help calculating the RPM for a ½ End mill, which formula below is correct?
RPM = (3.82 X SFM) / Cutter Dia.
RPM = 3.82 X SFM X Cutter Dia.
RPM = (Cutter Dia. X SFM)/3.82
RPM = (Cutter Dia. X 3.82)/SFM
4. An End that is designed to remove large amounts of material ( quickly )
This end mill is called?
Ripping End Mill.
Roughing or (Hogging) End Mill.
Shark Cutting End Mill because it has so many teeth.
4-Flute End Mill with a slow helix angle of about 12°
5. The correct “Feed Rate” for milling is expressed in Inches per minute ( IPM )
The correct formula is? : Note the formula in the Text uses (N) instead or (T)
IPM = (FPT X T)/RPM
IPM = FPT x T x RPM
IPM = (RPM x FPT) / T
IPM = (T x RPM)/FPT
6. From question # 6 what is the correct “IPM Feed Rate” given the following info:
Rpm=1500, 4 flute end mill, FPT=.005”
IPM =30
IPM = 1.875
IPM=120
IPM = 1.33
7. As a general rule the Depth of cut ( DOC ) of and end mill should not exceed ____________of the tool diameter in steel.
.500
.375
.250
.125
8. End-mills that is capable of making their own starting hole are known as ______ end mills.
Center Cutting
Start Cutting
Rough Cutting
Cavity Cutting.
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: End-mills that is capable of making their own starting hole are known as ______ end mills. Convention Milling or ( Up-Milling ) can best be described as: A fellow student needs help calculating the RPM for a ½ End mill, which formula below is correct..
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