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Standards |
Posted:
10/09/07
|
R State Standard |
£ Institutionally Developed |
College: n/a |
Provides further instruction for students to develop skills in the use
of milling machines. Topics include: safety, advanced milling calculations, advanced milling
machine setup and operations.
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Competency Areas |
Hours |
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Safety |
Class |
2 |
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Advanced
Milling Calculations |
D. Lab |
8 |
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Advanced
Milling Machine Setup |
P.
Lab/O.B.I. |
0 |
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Advanced
Milling Machine Operations |
Credit |
6 |
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Prerequisite: |
Provisional
admission |
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Corequisite: |
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Course Guide |
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Competency |
After completing this section,
the student will: |
Hours |
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Class |
D.Lab
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P.Lab/ O.B.I. |
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SAFETY |
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1
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Demonstrate
safe milling machine operation. |
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ADVANCED
MILLING MACHINE CALCULATIONS |
15 |
0
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0 |
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Speeds
and feeds |
Use
Machinery Handbook to determine feeds and speeds. |
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Positional
Calculations |
Calculate
X and Y coordinates for holes on a bolt circle. |
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Other
calculations (angles and radii) |
Solve
indexing calculation problems. |
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ADVANCED
MILLING MACHINE SETUP |
5 |
19
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0 |
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Planning |
Plan
sequence of vertical and horizontal milling operations. |
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Alignment |
Align workpiece, work holding devices, and fixtures on vertical
mill and/or horizontal mill. |
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Setup
indexing head for manual operations. |
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Setup
rotary table for manual operations. |
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Tooling requirements |
Select
the type of holding device or hold down system according to the workpiece shape and size. |
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ADVANCED
MILLING MACHINE OPERATIONS |
0 |
60
|
0 |
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Applications |
Machine
parts using carbide cutters on vertical mill. |
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Machine
radii using corner rounding cutter on vertical mill. |
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Machine
slot using slitting saw or wheel cutter on vertical and/or horizontal mill. |
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Bore,
face, and recess diameters using boring head. |
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Mill
multiple surfaces using indexing fixture on vertical mill and/or horizontal
mill. |
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Mill
multiple surfaces using dividing head on vertical mill and/or horizontal
mill. |
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Machine
tool steels and/or stainless steel on milling machine. |
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Drill hole patterns using rotary table. |
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Drill
bolt circle hole patterns using X and Y moves. |
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Identify
milling problems, determine causes, and correct problems. |
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Suggested Resources |
Walker, J, Machining
Fundamentals. Goodheart-Willcox.
Kibbe, R., Machine Tool Practices. Prentice Hall.
Krar, S., Technology
of Machine Tools. McGraw
Hill.
Journals/Magazines*
Modern Machine Shop
American Machinist
Tooling & Production
Posted: 10/09/07