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

https://www.vskills.in/certification/Vskills-Certified-Turning-and-Grinding-Operator-table-of-content

Practice Test

https://www.vskills.in/test/

Companies that hire Turning and Grinding Operator

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.

Apply for Certification

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TABLE OF CONTENT

 


Manufacturing Process

  • Centre Lathe and its Parts
  • Turning and centre Lathe
  • Bed
  • Ways
  • Headstock
  • Gearbox
  • Constructional features of Lathe
  • Lath Diagram
  • Spindle
  • Chuck
  • Tailstock
  • Tailstock Quill
  • Carriage
  • Cross Slide
  • Tool post
  • Feed Road
  • SplitNut
  • Quick Change Gearbox
  • Follow Rest
  • Safety Precaution
  • Before Working
  • During working
  • After Working
  • Lathe operation-cutting speed and feed
  • Cutting speed
  • Factors governing the cutting speed
  • Factors governing feed
  • Rate of metal removal
  • Cutting speed and feed for hiss tools
  • Turning time calculation
  • Purpose of facing
  • Defects found on facing
  • Defects found on faced work
  • Convex face
  • A pip in the center
  • Plain turning
  • Rough turning
  • Finish turning

Lathe bed

  • Functions of a lathe bed
  • Constructional features of lathe bed
  • Bed-ways
  • All geared headstock
  • Cone pulley head stock
  • Tailstock
  • Functioning of a tailstock
  • Purpose of a tailstock

Lathe Operation-different types of shoulders

  • Shoulder
  • Types of shoulders
  • Purpose
  • Divider caliper
  • Oddleg caliper
  • Venire caliper
  • Outside jaws
  • Inside Depth probe
  • Main scale
  • Vernier
  • Retainer
  • Micrometer caliper
  • Firm joint caliper
  • Spring caliper

Lathe operation – knurling

  • Knurling
  • Firm joint caliper
  • Spring caliper
  • Purpose of knurling
  • Types knurling
  • Diamond knurling
  • Cross knurling
  • Concave knurling
  • Convex knurling
  • Grades of knurling
  • Types of knurling tool holders
  • Single roller knurling
  • Differences between different types of knurling tool holders
  • Knuckle joint type knurling tool holder
  • Revolving head knurling tool
  • Chamfering
  • Purpose of chamfering
  • Methods of chamfering
  • Using a chamfering tool
  • Using a file
  • Grooving
  • Types of grooves
  • Round groove
  • V shaped groove

Lathe Operations – center drilling

  • Center drilling
  • Defects in center drilled holes
  • Center drills
  • Classification as per Indian standard
  • Uses and specifications
  • Methods of center drilling
  • Centering in two operations
  • Lathe centers
  • Types of centers and their uses
  • Soft center
  • Live or revolving center
  • Pipe center
  • Cup center
  • Drive center
  • Spring center

Lathe accessories-work holding and work supporting

  • Work holding accessories
  • Three-jaw
  • Face plates
  • Unusual slotted faceplate
  • Lathe mandrels
  • Work supporting accessories
  • Accessories used for in-between center works
  • Lathe carriers

Threading

  • Tolerancing of screw threads
  • Method of and an arrangement for producing threads
  • Making a screw with a lathe
  • Threading on a lath

Lathe mandrel

  • A mandrel

Cutting fluids

  • Functions
  • Advantages
  • Properties of good cutting fluid
  • Aluminum cutting fluid
  • All purpose cutting oil
  • Sawing fluid
  • Thread cutting oil
  • Synthetic cutting fluid concentrate
  • Straight mineral oil
  • Chemical solution (synthetic oil)
  • Advantages
  • Disadvantages
  • Compounded or blended oil
  • Fatty oil
  • Soluble oil [Emulsified oil]

Classification of steels

  • Carbon steels
  • Designation system
  • Alloy steels
  • Classification of steels by application
  • Stainless steels
  • The letter means
  • Metals commonly used for making gallory steels nickel (Ni)
  • Chromium (Cr)
  • Manganese (Mn)
  • Silicon (Si)\Tungsten (W)
  • Vanadium (Va)
  • Cobalt (co)
  • Molybdenum (Mo)
  • Cadmium (Cd)

Heat treatment processes

  • Purpose of the heat treatment
  • Purpose of the heat treatment
  • Stages of heat treatment process
  • Annealing
  • Normalizing
  • Hardening (by quenching)
  • Hardening followed by tempering
  • Tempering
  • Tempering requires

Introduction to grinding process

  • Introduction

Types of grinding operations

  • Surface grinding
  • External cylindrical grinding
  • Internal cylindrical grinding
  • Form grinding
  • Grinding machines
  • Surface grinding
  • Cylindrical grinder
  • Tool and cutter grinder

Surface Grinding Machine

  • Surface Grinding machine
  • Types of surface grinders
  • Horizontal spindle reciprocating table surface grinder
  • Function
  • Specification of surface grinder
  • Surface grinding operations

Standers Marking System For Grinding Wheels

  • Specifcations of Grinding Wheels

Contruction of a Grinding Wheel

  • Grade
  • Structure

Types of Bonds and their uses

  • Vitrifies Bond(V)
  • Silicate Bond (S)
  • Shellac Bond (E)
  • Rubber Bond (R)
  • Resinoid Bond (B)

Grinding Wheel-Staneard Dhapes and Appilcation

  • Straght Wheel
  • Cylinder

Tapered

  • Recessed one side
  • Straght cup
  • Recesssd both side
  • Flaring cup
  • Disc
  • Saucer
  • Segmented Wheels
  • Mounted Wheels

Types of wheel faces

  • Grinding wheel specifcation

Cylindriacl Grinders

  • Plain centre type cylindrical grinder
  • Parts
  • FunctionsSpecification

Work-holding Devices

  • Magnetic chuck
  • Vices
  • Angle Plate
  • V Block
  • De-Magnetizer

Grinding Wheel Dressing

  • Truing
  • Diamond Dressers.
  • Steel dressing tools
  • Abasive stick

Selection Of Grinding Wheel

  • Material to be grund
  • Amount of stock to be removed
  • Finish requird
  • Type of grinding operatiing
  • Wheel speed
  • Condition of the machine

Basic Idea of Hardness Testing

  • Hardness test methods
  • The Brinell Hardness Test
  • Vickers hardness Test Micro hardness Test
  • Hardening and tempering
  • Hardening and Tempering Steel
  • Water-Hardening tool steel
  • Oil-hardning tool steel
  • Cutting Tool
  • Cutting Tool Terminology
  • Annealing
  • Annealing Steel
  • Annealing Cast iron
  • Normalizing

Importance of case Hardening & Stress Relieving

  • Case Hardening Of Mildsteel
“Exam scheduling to be done through user account” / “Exam once scheduled cannot be cancelled”
Date of Examination
07-Oct-2017
08-Oct-2017
21-Oct-2017
22-Oct-2017
05-Nov-2017
18-Nov-2017
02-Dec-2017
03-Dec-2017
16-Dec-2017
17-Dec-2017
Examination Time
01:00 PM - 02:00 PM
02:30 PM - 03:30 PM
04:00 PM - 05:00 PM
05:30 PM - 06:30 PM
10:00 AM - 11:00 AM
11:30 AM - 12:30 PM

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Tags: turning operator, grinding operator, grinder