 |
|
 |
|
|
|
|
|
|
|
||||||
|
|
NAME : MILLING
SECTOR : PRODUCTION
AND MANUFACTURING
ENTRY
REQUIREMENT : Min. 8TH
STD. & 14 yrs
TERMINAL COMPETENCY :
The successful candidate would be able to:
• Use safety devices.
• Familiar with the necessary safety
precautions required to run a milling machine Plan the sequence of
operations.
• Identify and know the purpose of the
work-holding and driving accessories
• Identify and know the purpose of the
cutting-tool-holding accessories and attachments.
• Know the various types of materials,
milling cutters, measuring instruments and its application.
• Know the purpose of the main operational
parts of horizontal and vertical milling machine.
• Produce components using plain milling,
angular milling, slotting and key-way cutting.
• Milling six faces of a cubical block to an
accuracy of ± 0.1mm
DURATION : 210
hours:
Practical Competencies
Select, use, clean and store personal
safety protective equipment.
Demonstrate the use of safety devices on
metal cutting machines
Demonstrate the use of work holding
devices on metal cutting machines.
Use and store of materials in a safe
manner.
Preparation of process planning sheet
Check measurements of components/machined
parts, using micrometers and verniers.
Check roundness of components using the
dial test indicator and vee blocks.
Identifying different types of cutter
used in Horizontal milling machine.
Identifying different types of cutter
used in Vertical milling machine.
Study of Horizontal milling machine
-Identifying different parts, importance of each part.
Study of Vertical milling machine
-Identifying different parts, importance of each part
Use of Tool holding devices.
Practice on dividing head.
Practical on plain milling, slab milling.
Checking the flatness with tri-square.
Milling six faces of a cubical block to
an accuracy of ± 0.1mm.
Underpinning Knowledge (Theory)
State the safety precaution specific to
milling operations.
Explain the principles workshop layout,
blue print reading.
Describe the principle of the measuring
instruments: its action, care and use for measurement setting up and assembly
operations-
Micrometer:
internal, external, depth.
vernier :
Caliper, depth, height.
State the purpose of Milling.
Classification & properties of tool
materials & selection criteria . ISO specification on carbide tools.
Basic knowledge of different tool
materials ( including their temperature ranges) in use.
Milling machine – Types, constructional
features, Specifications - Merits and demerits
Describe Work holding methods and work
holding devices for milling operations.
Type of dividing head and indexing method
Nomenclature of milling cutters.
Classification of different types of
milling cutters and their uses.
Processes of milling – up milling, down
Checking the square ness with tri-square.
Measure the job size with vernier
caliper.
Step milling using side and face milling
cutter.
Angular milling using angular milling
cutter and checking with bevel protractor.
Slot milling using slot milling cutter /
slitting saw. milling, face milling and end milling.
Describe horizontal milling
operationsmilling of flat surfaces, Gang and straddle milling, production of
narrow
slots, slotting and slitting of thin plates,
key way cutting etc.
Describe vertical milling
operationsmilling of sunk and recessed surfaces, woodruff cutters, use of
shell end mills,
face mills, face slot cutters, dovetail
cutters etc.
Cutting fluid, properties & applications.
Selection of speed feed and depth of cut.
Identify Milling fault & correction.
|
||||||
|
|
|
|
|||||
Home | Courses | Placement Advisory Bureau | IMC | Contact Us |