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Turning Process

Joydeep Sarkar Construction / Engineering English

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Turning Process

Processes Cycle
- include
- Cycle Time
  - Load/Un-load Time
    - depend on
    - Size
    - Weight
    - Work Piece's Complexicity
    - Fixture Type
  - Cut Time
    - time req. for
    - Cutting Tool
      - equals to
      - Cut Lenght(L) /Feed Rate(R)
        Cut Length(L)
        calculated by basis of
        Operation Type
        Feature Dim.
        according to
        Prod. Dwg
        Page 6
        Cutting Parameter
        Cutting Feed
        Cutting Speed
        measured in
        SFM (mm/min)
        which is
        Relative Velocity
        Cutting Edge
        between
        Workpiece Surface
        which determine
        Metal Removal Speed
        Surface Finish
        Power Requirement
        Spindle Speed(N)
        Feed Rate(IPM)
        Axial Depth
        reqd. in
        Facing Oper
        such as
        Radial Depth
        Turning/Boring Oper
        such as
        Feed Rate(R) (Feed)
        expressed as
        Inch Per Min(IPM)
        equal to
        Cutting Feed(IPR) x Spindle Speed(N)
        Spindle(Workpiece) Speed(N)
        represented as
        SFM/pD
        in turn imply
        Rotational Motion
        described with
        Angular Velocity
        Angular Acceleration
        caused by
        Torque
        transmitted by
        Gear Box
        connected with
        Motor
        which produce
        Electric Power
        Connected with
        Cutting Feed (IPR)
        Inch Per Rev (mm/min)
        which is
        Distance
        the Cutting Tool
        Work-piece
        or
        During One Rev.
        advance
        Spindle Speed(N)
        X- Axiss
        Z-Axi
        which influence
        Surface Roughness
        indirectly influenced by
        Tool-nose Radius
  - Idle Time
  - Tool Replacement Time
- Set--up Time
  - composed of
  - M/c Set-up
  - Tool Path Planning
  - Fixture Installation
Capabilities
Equipment
- Turning Machine
  - refer to
  - Lathe
    - Page 3
Tooling
- Tooling Type
  - classified as
  - Single Point
    - classified accordingly
    - Combine with
    - Variety Shape
      - Style A (0° Lead Angle)
      - Style B (15° Lead Angle
      - Style C(0°Square Nose)
      - Style D(80° Included Angle Pointed Nose Tool
      - Style E (60° included Angle Pointed Nose Tool
        Surface Finish
        depend upon
        Geometric Properties
        lead to
        Surface Integrity
        Factors
        BUE
        Tool-Radius
        Feed
        Vibration/Chatter
      - changes according to
        Cutting Condition
    - Rel. Motion bet. Tool & Work-piece
      - which generate
    - illustrated as
    - Operation
      - Facing Tool (L or R)
        Turning Tool(L or R)
        Chamfering Tool
        Form or Profile Tool
        Parting or Necking Tool
        Threading Tool
        Boring Tool
        Knurling Tool
  - Multi-Point
    - Machining Element during Cutting
      - Cutting Parameter Depth of Cut Cutting Speed Feed Rate Lubrication Enviroment
      - Work Piece Material Heat Treatment Crystallography Purity Mech. Properties Temp. Work Hardening before Machining
      - Tool Material Geometry No of Cutting Edge Mechanical Properties Wear Resistance Thermal Conductivity
      - Measurement shear Angle Cutting Force Power Surface Finish Tool Wear Deflection Temperature Vibration Part Dimen.
        High Accuracy
        Surface Quality
        Machine Part
- Tooling Matl.
  - depends on
  - Work-Piece Matl.
    - in turn influence
    - Tooling Properties
      - lead to
      - Tool Matl.
        Classified into
        .H.S.S. Carbide Carbon Steel Cobalt High Speed Steel
        Ferrous .
        Non-Ferrous
- Mono-metallic
- Bi-metallic
Material
- Raw Matl.
  - lead to
  - Work-Piece
    - lead to
    - Variety Shape
      - available in
      - Std . Stock Size
      - Custom Extrusion
        such as
        Casting or Forging
- Selection
  - considering
  - Several Factors
    - Matl. Selection
      - Detail Page 7
Possible Defects
- Inaccuracy in Feature Dim/Surface Roughness
  - caused by
  - Possible Causes
    - lead to
    - Incorrect Cutting Parameter
    - Dull Cutting Tool
      - Tool Wear
    - Un-secured Workpiece
Design Rule
- Work-Piece
  - Min. Turning Amount
  - Work-piece Size
- Feature
  - facilitate
  - Min. Set-up
  - Std. Tool
    - & min.
    - No. of Tool
  - Depth of Feature
    - less tahn
    - Tool Length
  - Low. Tol. & Surface Roughness
    - & avoid
    - Under-Cut
Cost Drivers
- Matl. Cost
- Production Cost
  - of
  - Operation
- Tooling Coast
  - ToolType
  - Size
  - Matl.
Introduction
- Matl. removal process
  - is a
  - Rotational Parts
    - used to create
    - Unwanted matl.
      - by cutting away
      - Work-piece
        from
        Fixture
        is attached
        Turning M/c
        which itself attached to
        Rotate Work-piece
        is allowed to
        High Speed
        at
        Cuts away
        Feeding
        by
        Cutting Tool(Single-point)
        Turning M/c
        is also secured
        Fixture Type
        depend upon
        Operation
        Work-piece Shape/Size
        Type of Operation
        leads to
        External Oper
        Facing
        Turning
        Grooving
        Cut-off
        Thread-Cutting
        Internal Oper
        Boring
        Fixture Set-up Time
        Work-piece Load Time
Classification
- Direction of Tool Feed
  - Straight Turning
  - Taper Turning

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Description: Construction / Engineering Mind Map on Turning Process, created by Joydeep Sarkar on 18/02/2017.
Created by: Joydeep Sarkar
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Turning Process

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