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Use safety practices in all machine and hand work operations
Assessment Strategies
Test, Skill Demonstration in Lab
Criteria
you pass safety test
demonstrate safety procedures
operate machines with all required guards in place
maintain clean and organized work environment
wear appropriate clothing and Personal Protective Equipment (PPE)
explain proper lock-out tag-out procedures
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Setup a CNC machining center
Assessment Strategies
Skill Demonstration in Lab
With the Haas, Dousan, and Okuma CNC machining centers and manuals
Using lab equipment selected by student
On vise and stamp die projects by instructor specified date
Criteria
use proper workholding devices and rigidly mount workpiece to machine table
tram workpiece to machine axes and set zero point
select and load correct program
install tools into holders and set tool length offsets
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Program a CNC machining center
Assessment Strategies
Skill Demonstration in the Lab
Using the Haas, Dousan, and Okuma CNC machining centers
On vise and stamp die projects by instructor specified date
Criteria
manually program part geometry
use off-line programming software to draw the part geometry
use off-line programming software to generate the tool path
choose the proper cutter entry and exit position/path
assign the proper tool for a specific operation
edit part geometry and toolpath
proof toolpath through back plotting
assign a filename and post process the file
machined part or detail matches blueprint specifications
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Operate a CNC machining center
Assessment Strategies
Skill Demonstration in Lab
Using the Haas, Dousan, and Okuma CNC machining centers and reference manuals
On vise and stamp die projects by instructor specified date
Criteria
load correct program
check program
demonstrate file management techniques
initiate cycle start and adjust feeds and speeds as necessary
measure part as per blueprint specifications, and adjust tool lengths and offsets as required
follow all safety practices – both general and specific to the CNC machining center
properly shut down machine
machined detail or part conforms to blueprint specifications
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Use advanced setups and procedures on surface grinders
Assessment Strategies
Skill Demonstration in Lab
Using tools and equipment selected by the student
On three different surface grinders
Using precision angle plates, magnetic sine chuck, and magnetic parallels
On stamp die and precision vise projects by instructor specified date
Criteria
select the proper grinding wheel for a given application
check and stone off magnetic chuck
mount and dress the grinding wheel
parallel grind and square workpiece to blueprint specifications
properly remove grind stock relative to detail and hole locations
set up magnetic sine chuck and grind angled surfaces both square and parallel to datum edges
square a shoulder using the sidewheel method
follow all safety practices – both general and specific to surface grinders
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Use advanced setups and procedures on manual vertical and horizontal milling machines
Assessment Strategies
Skill Demonstration in Lab
With bridgeport vertical mill
With horizontal mill
With the Machinery’s handbook and a calculator
Using cutting tool selected by the student
Using an offset boring head
On stamp die and precision vise projects by instructor specified date
Criteria
choose proper work holding devices and rigidly mount workpiece to machine table
edge find, or tram workpiece to establish datum position
select the proper size cutting tool for the application
calculate the proper feed and speed for a variety of cutting tools
parallel mill and square workpieces to blueprint specifications
spot drill, drill, and ream holes to blueprint specifications
center drill, drill, chamfer, and tap holes to blueprint specifications
bore hole locations and diameter to blueprint specifications
line bore hole locations and diameters to blue print specifications
mill slots, angles, radii, and chamfer to blueprint specifications
mill pockets to blueprint specifications
follow all safety practices – both general and specific to the milling machine
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Demonstrate skills in using machine tool accessories
Assessment Strategies
Skill Demonstration in Lab
Using the Haas, Dousan, and Okuma CNC machines
Using tools and equipment selected by the student
On vise and stamp die projects by instructor specified date
Criteria
mount workpiece to and use milling vises
mount work pieces to the machine table using parallels, vise stops, table stops, and strap clamps
mount work pieces to the machine table using fixtures
use sine bars, sine chucks, angle plates, angle vises, v-blocks, rotary tables, and index heads
use magnetic chucks, v-blocks, and parallels
use offset boring heads
use DRO (digital readout systems)
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Develop and machine an electrode for EDM machining
Assessment Strategies
Skill Demonstration in Lab
Using lab equipment selected by the student
On electrodes for precision vise project by instructor specified date
Criteria
select the appropriate electrode material
complete electrode size worksheet
generate the geometry and sizes necessary to produce the cavity detail
machine finishing electrode to the blueprint specifications
machine roughing electrode to blueprint specifications
electrode is machined to the proper undersize to achieve blueprint specifications
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Setup a CNC EDM sinker
Assessment Strategies
Skill Demonstration in Lab
With the Makino CNC EDM machine and reference manuals
Using lab equipment selected by student
On precision vise project by instructor specified date
Criteria
select a work holding device and rigidly mount the workpiece to the machine table
tram or edge find the workpiece to establish the datum point
mount the electrode to a holder and the machine ram
select and load the correct technology file for the burn
attach the flushing lines
set flushing levels, pressures, and locations
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Operate a CNC EDM sinker
Assessment Strategies
Skill Demonstration in Lab
With the Makino CNC EDM machine and reference manual
Using tools and equipment selected by the student
On the precision vise project by instructor specified date
Criteria
load and activate the correct technology file for the specific burn
fill dielectric tank, set float level, and activate flushing
initiate the burn cycle, and monitor the process making adjustments as necessary
verify burn depth and size – adjusting if necessary to achieve blueprint specifications
properly shut down machine
follow all safety practices – both general and specific to the EDM machine
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Build and assemble small stamping die
Assessment Strategies
Skill Demonstration in Lab
With tools and equipment selected by the student
On canned stamp die project
Criteria
use prints
apply machining techniques required to build a stamping die
assemble, and fit the stamp die
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Setup a CNC wire EDM
Assessment Strategies
Skill Demonstration in Lab
With the Makino CNC wire EDM and reference manual
Using lab equipment selected by the student
On stamp die or special machining project by instructor specified date
Criteria
use proper work holding devices and rigidly mount workpiece to machine table
thread wire through wire rollers and initiate auto threading cycle
position upper guide to correct height
select the proper screens and operation keys to position the wire for edge finding part
select and execute edge find and center find programs to establish part zero
select and download correct part program
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Operate a CNC wire EDM
Assessment Strategies
Skill Demonstration in Lab
Using the Makino CNC wire EDM machine
On stamp die
Criteria
activate the proper screens and load the correct program
check program
activate proper CNC program, wire, and technology files
activate graphics screen to plot wire geometry path on CNC control screen
use Model Plan and Data book to create a technology file for roughing, and finish cuts
check setup and Data pages to create a technology file for roughing, and finish cuts
check operation page to monitor burn process
properly shut down machine
follow all safety practices both general and specific to the CNC wire EDM machined detail or part conforms to blueprint specifications
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Heat treats project steels using sound metallurgical practices
Assessment Strategies
Skill Demonstration in Lab
Using the manufacturer’s heat treating specification charts
Using the heat treat and tempering furnaces
Using a Rockwell hardness tester
Criteria
determine the correct temperature, length of time, and quenching medium for hardening the workpiece
determine the tempering temperature and soak time to achieve the desired Rockwell hardness
visually inspect and Rockwell hardness test the workpiece
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Proof a stamping die using a stamp press
Assessment Strategies
Skill Demonstration in Lab
Using the equipment and tools provided by the instructor
With the stamping press
On stamp die
Criteria
mount the die to the press bed
work with the instructor on press operation parameters and setup
run several piece parts, and verify dimensions and appearance to blueprint specifications
make adjustments to the die and machine as necessary
work with the instructor on machine shut down and die removal
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Verify accuracy of machining using dimensional metrology practices and equipment
Assessment Strategies
Skill Demonstration in Lab Using tools and equipment selected by the student
While part is still mounted to the machine
In the gage lab
On a surface plate
On vise and stamp die projects by instructor specified date
Criteria
measure dimensional accuracy of the part on the machine using indicators, outsidemicrometers, depth micrometers, inside micrometers, calipers, telescoping gages, small hole gages, plug gages, and mating parts
measure dimensional accuracy of the part on a surface plate using indicators, gage blocks, height gages, sine bars, angle plates, plug gages, and cylindrical squares
measure length, width, height, locations, sizes, and angles using a CMM