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Govt. Engineering College Bikaner
  (An Autonomous Institution of Govt. of
  Rajasthan)

           A
      PRESENTATION
ON VOCATIONAL TRAINING AT
  INDO DANISH TOOL ROOM ,
        JAMSHEDPUR
                By :
                 By
                Dept. of Mechanical Engineering
                 Gaurav Gunjan
                 B. Tech. (Final Year)
                 Dept. of Mechanical Engineering1
ABOUT IDTR:-


• Indo Danish Tool Room, Jamshedpur was established in 1991 by
  Government of India under the assistance of Govt. of Denmark.
• Their main objective is to provide consistent, reliable, quality service for
  industrial growth based on its trained, skilled and innovative manpower
  capabilities backed by the state of the art tool room facilities and
  provide trained manpower (through long & short term training).
• They undertake Design and Manufacturing of Jigs, Fixtures, Gauges,
  Die Casting Dies, Press Tooling and Plastic Moulds for the Automobile
  and Engineering Sectors and machining of precision components.
  MSME Tool Room and Training Centre, Jamshedpur (IDTR) is a
  Government of India Society, Under Ministry of MSME
To impart long-term and short-term training to youngsters in the field
of Tool & Die making course with the latest technologies (and other
allied Engineering trades) both for fresher's and personnel already
engaged in this field.

To provide Consultancy Services primarily to Small scale Units in the
field of Tool Engineering aimed at improving the productivity of the
Small Scale Units

To design and manufacture Moulds, Tools, Dies, Jigs Fixtures etc of
high precision quality.

To provides common facility services in precision machining / heat
treatment and other technical engineering know-how in tooling to
Small Scale Industries in the Country.
DEPARTMENTS:-
Design & Manufacturing:
Design and manufacture of precision dies and tools, moulds, jigs & fixtures,
gauges etc. and their appropriate use and maintenance.
Tool manufacturing using latest technology.
Tool related innovations for improved product design using Rapid Prototyping
Technology.
Precision machining and Heat Treatment.
Consultancy & Others:
Product & Process Development.
Productivity/ Quality improvement.
Training Program/Course curriculum development for training institutes.
Execution of Turn-key projects.
Vacuum Heat Treatment.
Productivity/ Quality improvement.
Inspection and calibration facilities.
Partners:-

SIEMENS
IDTR offers following training program in collaboration with
SIEMENS:--
CNC COMMISSIONING & MAINTENANCE.
AC SERVO DRIVE COMMISSIONING & MAINTENANCE.
CNC PROGRAMMING & OPERATION (SinuTrain).

IGNOU, New Delhi

IDTR offers Certificate Course on Motorcycle Service and
Repairing in collaboration with IGNOU and Hero-Honda.
Customers
Our Valued Customers are:

TATA MOTORS, Jamshedpur.           JMT LIMITED, Jamshedpur.
TATA MOTORS, Pune.                 LUCAS TVS, CHENNAI.
Tata Cummins, Jamshedpur.          NIKUNJ, MUMBAI.
TTL, Jamshedpur.                   MARUTI UDYAG LIMITED, CHENNAI.
TELCON, Jamshedpur.                HIGHCO ENGINEERS, Jamshedpur.
TELCON, Kharagpur                  RAMAKRISHNA FORGE LIMITED, Jamshedpur.
IAL Jamshedpur.                    JINDAL STEEL & POWER LIMITED, RAIPUR.
Makino India Pvt Ltd. Bengaluru.   CTM India Ltd.
TIMKEN CHENNAI.                    Cross Manufacturing Pvt.Ltd. Jamshedpur.
CAPARO Jamshedpur.                 Steel Strips Wheels Ltd. Jamshedpur.
VIP NASIK.                         Rasandik Engineering, Delhi.
ARVIND ENGINEERING KOLKATA.        MINDA Industries Ltd. Gurgaaon.
HINDUSTHAN MOTORS KOLKATA.         Metalsa, Jamshedpur.
ENDURENCE ENG.LTD.                 TVS Lucas, Chennai.
SONA GROUP CHENNAI.                Bharat Heavy Engineering Ltd.
ARUN MOULD,MUMBAI.                 Delhi Metro Rail Corporation.
HVTL, Jamshedpur.                  McNally Bharat Engineering Company Ltd.
                                   JOST ,Jamshedpur.
CNC
MACHINES
Computer Numerical Control
            (CNC)
   The idea of computer numerical control is to
    position a computer right at the machine
     tool.The introduction of CNC machines
  radically changed the manufacturing industry.
    Curves are as easy to cut as straight lines
   complex 3-D structures are relatively easy to
produce, and the number of machining steps that
         required human action have been
              dramatically reduced.
Advantages:-
Reduces tooling costs
Reduces layout time
Increases machine and tool life
Reduces storage problems
Less setup time
Reduces actual machining time Allows rapid design
changes in part Less jigs and fixtures are needed
Avoids human errors
Complex geometry is produced as cheaply as simple
ones
10
Hardware Configuration of CNC  Mechanical Engineering   Ken Youssefi


Machine                                   Department




 Machine Control Unit (MCU)
     the brain of the NC machine.
 The Data Processing Unit (DPU)
      reads the part program.
 The Control Loop Unit (CLU)
      controls the machine tool operation.
NUMERICAL
                    DATA
                  (NC CODE)


                              NUMERICAL
MANUFACTURING                 CONTROLLER
  OPERATOR
                                      Drive Control




           PROCESSED
              PART
                              MACHINE UNIT

                                              11
HOW CNC WORKS:-


• Controlled by G and M codes.
• These are number values and co-ordinates.
• Each number or code is assigned to a particular
  operation.
• Typed in manually to CAD by machine operators.
• G&M codes are automatically generated by the
  computer software.
ELECTRICAL DISCHARGE MACHINE - EDM
Die-sinking EDM systems, the electrode (cutting tool) and workpiece are held by
the machine tool. The power supply controls the electrical discharges and
movement of the electrode in relation to the workpiece. During operation the
workpiece is submerged in a bath of dielectric fluid (electrically nonconducting).
(Die-Sinking EDM is also called Sinker, Ram-Type, Conventional, Plunge or
Vertical EDM)




MECHANICAL ENGINEERING DEPARTMENT                          Ken Youssefi       13
EDM – DIE-SINKING (PLUNGE)
•    During normal operation the electrode never touches
     the workpiece but is separated by a small spark gap.
•    The electrode (plunger) can be a complex shape, and can be moved
     in X, Y, and Z axes, as well as rotated, enabling more complex
     shapes with accuracy better than one mil.
•    The spark discharges are pulsed on and off at a high frequency cycle
     and can repeat 250,000 times per second. Each discharge melts or
     vaporizes a small area of the workpiece surface.
•    The amount of material removed from the workpiece with
     each pulse is directly proportional to the energy it
     contains.
•    Plunge EDM is best used in tool and
     die manufacturing, or creating
     extremely accurate molds for injection-
     molding plastic parts.
EDM
The EDM process can be used on any material that is
an electrical conductor

The EDM process does not involve mechanical
energy, therefore, materials with high hardness and
strength can easily be machined.


 Applications include producing die cavity for large
 components, deep small holes, complicated internal
 cavities
EDM – DIE-SINKING (PLUNGE)
•    During normal operation the electrode never touches the
     workpiece but is separated by a small spark gap.
•    The electrode (plunger) can be a complex shape, and can be moved
     in X, Y, and Z axes, as well as rotated, enabling more complex
     shapes with accuracy better than one mil.
•    The spark discharges are pulsed on and off at a high frequency cycle
     and can repeat 250,000 times per second. Each discharge melts or
     vaporizes a small area of the workpiece surface.
•    The amount of material removed from the workpiece with
     each pulse is directly proportional to the energy it
     contains.
•    Plunge EDM is best used in tool and
     die manufacturing, or creating
     extremely accurate molds for injection-
     molding plastic parts.
FLOW OF COMPUTER-AIDED
CNC PROCESSING
• Develop or obtain the 3D geometric model of the part,
  using CAD.
• Decide which machining operations and cutter-path
  directions are required (computer assisted).
• Choose the tooling required (computer assisted).
• Run CAM software to generate the CNC part program.
• Verify and edit program.
• Download the part program to the appropriate machine.
• Verify the program on the actual machine and edit if
  necessary.
• Run the program and produce the part.
CNC MACHINES
Machining Centers, equipped with automatic tool changers, are
capable of changing 90 or more tools. Can perform milling, drilling,
tapping, boring… on many faces.




 MECHANICAL ENGINEERING DEPARTMENT                    Ken Youssefi     18
TOOLS:--


• Most are made from
  high speed steel (HSS),
  tungsten carbide or ceramics.
• Tools are designed to direct waste away from the
  material.
• Some tools need coolant such as oil to protect the
  tool and work.
TOOL PATHS, CUTTING
AND PLOTTING MOTIONS
• Tool paths describes the route the cutting tool takes.
• Motion can be described as point to point, straight cutting or
  contouring.
• Speeds are the rate at which the tool operates e.g. rpm.
• Feeds are the rate at which the cutting tool and work piece
  move in relation to each other.
• Feeds and speeds are determined by cutting depth, material
  and quality of finish needed. e.g. harder materials need
  slower feeds and speeds.
• Rouging cuts remove larger amounts of material than
  finishing cuts.
• Rapid traversing allows the tool or work piece to move
  rapidly when no machining is taking place.
CNC Programming Basics
• Each letter address relates to a specific machine function. “G”
  and “M” letter addresses are two of the most common. A “G”
  letter specifies certain machine preparations such as inch or
  metric modes, or absolutes versus incremental modes.

• A “M” letter specifies miscellaneous machine functions and
  work like on/off switches for coolant flow, tool changing, or
  spindle rotation. Other letter addresses are used to direct a
  wide variety of other machine commands.
Conventional milling machines

  Vertical Milling machine architecture
BASIC CNC PRINCIPLES
• Using a vertical mill
  machining center as an
  example, there are typically
  three linear axes of motion.
  Each is given an alphabetic
  designation or address.
  The machine table motion
  side to side is called the “X”
  axis. Table movement in
  and out is the “Y” axis,
  while head movement up
  and down the column is the
  “Z” axis.

24

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Gaurav

  • 1. Govt. Engineering College Bikaner (An Autonomous Institution of Govt. of Rajasthan) A PRESENTATION ON VOCATIONAL TRAINING AT INDO DANISH TOOL ROOM , JAMSHEDPUR By : By Dept. of Mechanical Engineering Gaurav Gunjan B. Tech. (Final Year) Dept. of Mechanical Engineering1
  • 2. ABOUT IDTR:- • Indo Danish Tool Room, Jamshedpur was established in 1991 by Government of India under the assistance of Govt. of Denmark. • Their main objective is to provide consistent, reliable, quality service for industrial growth based on its trained, skilled and innovative manpower capabilities backed by the state of the art tool room facilities and provide trained manpower (through long & short term training). • They undertake Design and Manufacturing of Jigs, Fixtures, Gauges, Die Casting Dies, Press Tooling and Plastic Moulds for the Automobile and Engineering Sectors and machining of precision components. MSME Tool Room and Training Centre, Jamshedpur (IDTR) is a Government of India Society, Under Ministry of MSME
  • 3. To impart long-term and short-term training to youngsters in the field of Tool & Die making course with the latest technologies (and other allied Engineering trades) both for fresher's and personnel already engaged in this field. To provide Consultancy Services primarily to Small scale Units in the field of Tool Engineering aimed at improving the productivity of the Small Scale Units To design and manufacture Moulds, Tools, Dies, Jigs Fixtures etc of high precision quality. To provides common facility services in precision machining / heat treatment and other technical engineering know-how in tooling to Small Scale Industries in the Country.
  • 4. DEPARTMENTS:- Design & Manufacturing: Design and manufacture of precision dies and tools, moulds, jigs & fixtures, gauges etc. and their appropriate use and maintenance. Tool manufacturing using latest technology. Tool related innovations for improved product design using Rapid Prototyping Technology. Precision machining and Heat Treatment. Consultancy & Others: Product & Process Development. Productivity/ Quality improvement. Training Program/Course curriculum development for training institutes. Execution of Turn-key projects. Vacuum Heat Treatment. Productivity/ Quality improvement. Inspection and calibration facilities.
  • 5. Partners:- SIEMENS IDTR offers following training program in collaboration with SIEMENS:-- CNC COMMISSIONING & MAINTENANCE. AC SERVO DRIVE COMMISSIONING & MAINTENANCE. CNC PROGRAMMING & OPERATION (SinuTrain). IGNOU, New Delhi IDTR offers Certificate Course on Motorcycle Service and Repairing in collaboration with IGNOU and Hero-Honda.
  • 6. Customers Our Valued Customers are: TATA MOTORS, Jamshedpur. JMT LIMITED, Jamshedpur. TATA MOTORS, Pune. LUCAS TVS, CHENNAI. Tata Cummins, Jamshedpur. NIKUNJ, MUMBAI. TTL, Jamshedpur. MARUTI UDYAG LIMITED, CHENNAI. TELCON, Jamshedpur. HIGHCO ENGINEERS, Jamshedpur. TELCON, Kharagpur RAMAKRISHNA FORGE LIMITED, Jamshedpur. IAL Jamshedpur. JINDAL STEEL & POWER LIMITED, RAIPUR. Makino India Pvt Ltd. Bengaluru. CTM India Ltd. TIMKEN CHENNAI. Cross Manufacturing Pvt.Ltd. Jamshedpur. CAPARO Jamshedpur. Steel Strips Wheels Ltd. Jamshedpur. VIP NASIK. Rasandik Engineering, Delhi. ARVIND ENGINEERING KOLKATA. MINDA Industries Ltd. Gurgaaon. HINDUSTHAN MOTORS KOLKATA. Metalsa, Jamshedpur. ENDURENCE ENG.LTD. TVS Lucas, Chennai. SONA GROUP CHENNAI. Bharat Heavy Engineering Ltd. ARUN MOULD,MUMBAI. Delhi Metro Rail Corporation. HVTL, Jamshedpur. McNally Bharat Engineering Company Ltd. JOST ,Jamshedpur.
  • 8. Computer Numerical Control (CNC) The idea of computer numerical control is to position a computer right at the machine tool.The introduction of CNC machines radically changed the manufacturing industry. Curves are as easy to cut as straight lines complex 3-D structures are relatively easy to produce, and the number of machining steps that required human action have been dramatically reduced.
  • 9. Advantages:- Reduces tooling costs Reduces layout time Increases machine and tool life Reduces storage problems Less setup time Reduces actual machining time Allows rapid design changes in part Less jigs and fixtures are needed Avoids human errors Complex geometry is produced as cheaply as simple ones
  • 10. 10 Hardware Configuration of CNC Mechanical Engineering Ken Youssefi Machine Department Machine Control Unit (MCU) the brain of the NC machine. The Data Processing Unit (DPU) reads the part program. The Control Loop Unit (CLU) controls the machine tool operation.
  • 11. NUMERICAL DATA (NC CODE) NUMERICAL MANUFACTURING CONTROLLER OPERATOR Drive Control PROCESSED PART MACHINE UNIT 11
  • 12. HOW CNC WORKS:- • Controlled by G and M codes. • These are number values and co-ordinates. • Each number or code is assigned to a particular operation. • Typed in manually to CAD by machine operators. • G&M codes are automatically generated by the computer software.
  • 13. ELECTRICAL DISCHARGE MACHINE - EDM Die-sinking EDM systems, the electrode (cutting tool) and workpiece are held by the machine tool. The power supply controls the electrical discharges and movement of the electrode in relation to the workpiece. During operation the workpiece is submerged in a bath of dielectric fluid (electrically nonconducting). (Die-Sinking EDM is also called Sinker, Ram-Type, Conventional, Plunge or Vertical EDM) MECHANICAL ENGINEERING DEPARTMENT Ken Youssefi 13
  • 14. EDM – DIE-SINKING (PLUNGE) • During normal operation the electrode never touches the workpiece but is separated by a small spark gap. • The electrode (plunger) can be a complex shape, and can be moved in X, Y, and Z axes, as well as rotated, enabling more complex shapes with accuracy better than one mil. • The spark discharges are pulsed on and off at a high frequency cycle and can repeat 250,000 times per second. Each discharge melts or vaporizes a small area of the workpiece surface. • The amount of material removed from the workpiece with each pulse is directly proportional to the energy it contains. • Plunge EDM is best used in tool and die manufacturing, or creating extremely accurate molds for injection- molding plastic parts.
  • 15. EDM The EDM process can be used on any material that is an electrical conductor The EDM process does not involve mechanical energy, therefore, materials with high hardness and strength can easily be machined. Applications include producing die cavity for large components, deep small holes, complicated internal cavities
  • 16. EDM – DIE-SINKING (PLUNGE) • During normal operation the electrode never touches the workpiece but is separated by a small spark gap. • The electrode (plunger) can be a complex shape, and can be moved in X, Y, and Z axes, as well as rotated, enabling more complex shapes with accuracy better than one mil. • The spark discharges are pulsed on and off at a high frequency cycle and can repeat 250,000 times per second. Each discharge melts or vaporizes a small area of the workpiece surface. • The amount of material removed from the workpiece with each pulse is directly proportional to the energy it contains. • Plunge EDM is best used in tool and die manufacturing, or creating extremely accurate molds for injection- molding plastic parts.
  • 17. FLOW OF COMPUTER-AIDED CNC PROCESSING • Develop or obtain the 3D geometric model of the part, using CAD. • Decide which machining operations and cutter-path directions are required (computer assisted). • Choose the tooling required (computer assisted). • Run CAM software to generate the CNC part program. • Verify and edit program. • Download the part program to the appropriate machine. • Verify the program on the actual machine and edit if necessary. • Run the program and produce the part.
  • 18. CNC MACHINES Machining Centers, equipped with automatic tool changers, are capable of changing 90 or more tools. Can perform milling, drilling, tapping, boring… on many faces. MECHANICAL ENGINEERING DEPARTMENT Ken Youssefi 18
  • 19. TOOLS:-- • Most are made from high speed steel (HSS), tungsten carbide or ceramics. • Tools are designed to direct waste away from the material. • Some tools need coolant such as oil to protect the tool and work.
  • 20. TOOL PATHS, CUTTING AND PLOTTING MOTIONS • Tool paths describes the route the cutting tool takes. • Motion can be described as point to point, straight cutting or contouring. • Speeds are the rate at which the tool operates e.g. rpm. • Feeds are the rate at which the cutting tool and work piece move in relation to each other. • Feeds and speeds are determined by cutting depth, material and quality of finish needed. e.g. harder materials need slower feeds and speeds. • Rouging cuts remove larger amounts of material than finishing cuts. • Rapid traversing allows the tool or work piece to move rapidly when no machining is taking place.
  • 21. CNC Programming Basics • Each letter address relates to a specific machine function. “G” and “M” letter addresses are two of the most common. A “G” letter specifies certain machine preparations such as inch or metric modes, or absolutes versus incremental modes. • A “M” letter specifies miscellaneous machine functions and work like on/off switches for coolant flow, tool changing, or spindle rotation. Other letter addresses are used to direct a wide variety of other machine commands.
  • 22. Conventional milling machines Vertical Milling machine architecture
  • 23. BASIC CNC PRINCIPLES • Using a vertical mill machining center as an example, there are typically three linear axes of motion. Each is given an alphabetic designation or address. The machine table motion side to side is called the “X” axis. Table movement in and out is the “Y” axis, while head movement up and down the column is the “Z” axis.