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Certified CNC programmer

How It Works

  1. 1. Select Certification & Register
  2. 2. Receive a.) Online e Learning Access (LMS)    b.) Hard copy - study material
  3. 3. Take exam online anywhere, anytime
  4. 4. Get certified & Increase Employability

Test Details

  • Duration: 60 minutes
  • No. of questions: 50
  • Maximum marks: 50, Passing marks: 25 (50%).
  • There is NO negative marking in this module.
  • Online exam.

Benefits of Certification

Rs.3,499 /-

Vskills has developed a new strategic framework for Skill Development for early school leavers and existing workers, especially in the unorganized sector to improve their employability called Trade Employable Skills (TES).

Trade Employable Skills does effective assessment and certification of candidates in different trade disciplines like Electrical, Electronics, Agriculture, Chemical, Automobile, IT, etc to make them job ready.

Why should one take this certification?

To demonstrate clear understanding and practical aspects and to get a visible recognition for this knowledge.

Table of Content

Practice Test

Companies that hire CNC programmer

All small and medium companies need certified employees who have the requisite skills. There are more jobs opening up in the economy on a regular basis with the fast growth of the country.

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  • American Express

CNC machine and safety

  • Need for cnc machines
  • Example of cnc program
  • Program body
  • Header
  • Program body
  • End of the program
  • Conventional machine
  • Cnc machine
  • NC machine, cnc
  • Cnc work – An introduction
  • Advantages, Disvantages
  • Cnc machine and its applications
  • Reference systems
  • Origins of the reference systems
  • OMmachine zero
  • Properties of the function
  • Axis
  • Programming
  • Main planes and axes
  • Properties of the function
  • Work plan program by two directions (G20)
  • Programming
  • Rotary axes
  • Linear like rotary axis
  • Normal rotary axis
  • Unidirectional rotary axis
  • Positioning-only rotary axis
  • CNC Vertical boring machine

Machine zero and reference point programming

  • Coordinate programming
  • Cartesian coordinates
  • Definition of position values
  • Standard axes (x…C9)
  • Definition of position values
  • Polar origin preset
  • Origin selection
  • Programming with respect to machine zero
  • Program a movement referred to machine zero
  • Machine coordinate system
  • Considerations for movement referred to machine zero
  • Zero offsets and coordinate transformations
  • Tool radius and length compensation
  • System units; millimeters or inches
  • Technological functions
  • Movement without with out programmed feed rate
  • Variable to limit the feed rate via PLC
  • Feed rate regulation
  • Understanding how the CNC calculates the feed rate
  • Feed rate programming units (G93/94/95)
  • Programming
  • Tool number (T)
  • Load a tool in the spindle
  • List of “M” function
  • Program interruption (M00/M01)
  • Tool change (M06)
  • M06 Tool change
  • Constant surface speed
  • G96 constant surface speed
  • Constant turning speed
  • Spindle start and stop
  • M03/M04 start the spindle clockwise counter clockwise
  • Stop the spindle
  • G02 and G03 commands zero offset absolute and incremental  co- ordiantes  tool call, tool length compensation cutter radius compensation
  • Tool path control
  • Programming
  • In polar coordinates
  • Circular interpolation
  • Programming
  • Cartesian coordinates
  • Coordinates of the arc’s final point
  • Arc center coordinates
  • Cartesian coordinates
  • Arc radius
  • Depending  on the active work plane, the programming format is
  • Electronic threading with constant pitch
  • Programming
  • Thread pitch
  • Programming examples for a mill
  • Multi –entry electronic threading
  • Longitudinal electronic threading
  • Multi –entry longitudinal electronic threading Electronic taper threading
  • Thread blending
  • Corner chamfering
  • Programming
  • Mirror image
  • Considerations
  • Additional preparatory functions
  • Tool compensation
  • Types of compensation
  • Tool radius compensation
  • Tool length compensation
  • Tool radius compensation
  • Programming
  • Subroutines
  • Types of subroutines
  • Global subroutines
  • Local subroutines
  • Subroutine nesting and parameters
  • Arithmetic parameters in the subroutines
  • Location (path) of the global subroutines
  • Programming format
  • The programming format
  • Global parameters
  • Subroutine execution
  • The programming format
  • Call to a global or local subroutine initializing parameters
  • Modal call to a local or global subroutine

Introduction to pneumatics block diagrams directional, pressure and flow control valve

  • Pneumatics
  • Examples of pneumatic systems
  • Pneumatic tools
  • Pipe organs
  • Advantages of pneumatics
  • Reliability
  • Storage
  • Safety
  • Pneumatic symbols
  • Pneumatic block diagrams
  • Layout of the system
  • Front panel
  • Dimensions
  • Sensor inputs
  • Valves
  • Serial port
  • Reset button
  • Power input
  • MCU
  • Gas
  • Tank
  • Regulators
  • Buffer tank
  • Pneumatic hoses and fittings
  • Valves
  • The actuator
  • Theories behind compressed air technology
  • Directional control valves
  • Classification
  • Poppet
  • Rotary spool
  • Sliding spool
  • Modeling of directional valve
  • Applications of DCV
  • Pressure control pressure control valve

Principal of Hydraulics Definition of Force, Pressure,

  • Flow Pascal’s Low Hydraulic Pumps, Motors And Intensifiers
  • Hydraulics
  • Basic hydraulic principles
  • Hydraulic pressure and Force
  • Flow rate
  • Introduction
  • Basic symbols
  • Valve operators
  • Energy conversion devices
  • Fluid cylinders
  • System pressurization
  • Hydraulic intensifiers
  • Nomenclature
  • Reciprocating intensifiers
  • Types of hydraulic fluids
  • Petroleum-based fluids
  • Synthetic fire-resistant fluids
  • Phosphate ester fire-resistant fluids
  • Silicone synthetic fire-resistant fluids
  • Lightweight synthetic fire-resistant fluids
  • Water-based fire-resistant fluids
  • Properties of hydraulic fluids
  • Viscosity
  • Single-acting cylinder
  • Double –acting cylinder
  • Hydraulic pumps
  • Hydraulic pumps types
  • Gear pumps
  • Gerotor pumps
  • Rotary vane pumps
  • Screw pumps
  • Bent axis pumps
  • Axial piston pumps swash plate principle
  • Radial piston pumps
  • Peristaltic pumps
  • Hydraulic motor
  • Hydraulic motor types
  • Gear and vane motors axial
  • Axial plunger motor
  • Radial piston motors
  • Braking
  • Uses
  • Direction Control Valve Types Pressure Control Valve Types Flow Control Valve Types
  • Directional control valve
  • Types of directional control valve
  • Poppet-type directional control valves
  • Spool valve disadvantages
  • Hydraulic 4-way spool valves
  • Pressure control
  • Types
  • Main types of pressure relief valves include
  • Definition of “backpressure”
  • Sequence valves sequence valves basics
  • A sequence of events
  • Some precautions
  • Sequence valves at work
  • The counterbalance valve
  • Functioning
  • Pilot operated pressure relief
  • Single –acting cylinder circuit with three-port valve
  • Drawing pneumatic circuits
  • Double-acting cylinder circuit with five-port valve
  • Double –acting cylinder and five-port valve

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