Engineering Workshop

Fitting Workshop-Holding,Measuring,Marking, Cutting ,Finishing, Striking & Power Tools

Fitting Definition: Fitting is the process of assembling various parts manufactured in the machine shop. The various types of tools used in Engineering Workshop are as follows.

FITTING WORKSHOP TOOLS:

  1. Holding Tools
  2. Marking Tools
  3. Measuring Tools
  4. Cutting Tools
  5. Finishing Tools
  6. Striking Tools

The detailed explanation of above mentioned Fitting Workshop Tools are as follows.

1.HOLDING TOOLS Used in Fitting Workshop:

Holding tools are also known as Work Holding devices in Fitting workshop. They are used to hold all types of components between jaws(Fixed Jaw and Movable Jaw).

The Various Work holding devices are

  1. Workbench
  2. Bench Vice
  3. Pipe Vice
  4. Hand Vice
  5. Toolmakers vice

The Detailed Explanation of Work Holding Devices was HERE

2.MARKING TOOLS:

Marking Tools are used to mark any dimensions on the surface of a workpiece. Marking Tools can vary w.r.t. the specimens were taken and that you will see in the engineering workshop.

They are 3 types of Marking tools used in the fitting workshop and are as follows.

  1. Scriber
  2. Dot Punch
  3. Center Punch

The Detailed Explanation of Marking Tools was HERE

3.MEASURING TOOLS Used in Fitting Workshop:

Measuring Tools are used to measure any component w.r.t. the dimensions. Without these tools, it is not easy to measure the accurate values of the given .components.Some of the Measuring Tools used in Fitting Workshop are as follows.

  1. Steel rule & Measuring Tape
  2. Surface Plate
  3. Divider
  4. Try square
  5. Inside Calliper
  6. Odd leg calliper
  7. Outside Calliper
  8. Vernier Height Guage
  9. Micrometre
  10. Vernier Calliper

The detailed explanation of 10 Measuring Tools was HERE

4.CUTTING TOOLS:

Cutting Tools(here) are used to cut the given specimen(plate) w.r.t.the given dimensions.The material of the given specimen in Fitting workshop is Mild Steel.

The Cutting Tools used in Engineering Workshop are

1.Hacksaw(Cutting Tool)

2.Files(Finishing Tool): Though it is a finishing tool, it comes under, cutting tools only.

1.Hacksaw:

Hacksaw is used for cutting of rods, bars, pipes etc. It consists of a frame, which is made of mild steel.

Depending upon the pitch of the teeth (Distance between the two consecutive teeth) blade is classified as:

• Coarse (8-14 teeth per Inch)

• Medium (16-20 teeth per inch)

• Fine (24-32 teeth per inch)

Hacksaw is classified into two types.

  • Hacksaw with Fixed Frame
  • Hacksaw with Movable Frame
Cutting Tools used in Fitting Workshop
 Cutting Tools used in Fitting WorkshopIn the above, hacksaws were different w.r.t.the frames only and the rest was same i.e.blade.One hacksaw has a fixed frame and the other has a movable frame.5.FINISHING TOOLS:

They are used to remove the material from the surface of the workpiece in order to get a high surface finish. The Finishing tools are also called as Files. They have different cross sections w.r.t. the components. Files are used to smoothen the surface of the workpiece.

The various types of Files are as follows.

  1. Flat file
  2. Square file
  3. Triangular file
  4. Round file
  5. Half round file
  6. Swiss or Needle file

Files are multi-point cutting tools. They are used to remove the material by rubbing on the metals(workpieces) to get a good surface finish.

Files are available in a number of sizes, shapes, and degree of coarseness.

1.Flat File: This file is used to remove the material from the rectangular cross-sections.

2.Square File: This file is especially used to remove the material from the inside corners which are at right angles. As a flat file cannot able to work at those corners, thereby square file is used.

3.Triangular File: This file can be used at inclined positions to make them linear.

4.Round File: It is in the form of circular cross-section which is used to remove the material from the circular components to get a good surface finish.

5.Half-Round File: It is in the form of a semi-circle which is used to remove the material from the semi-circular cross-section components.

6.Swiss or Needle File: It is in the form of a Needle which is used to remove the material from the Keyhole like cross-section components.

Types of Files used in Engineering Fitting shop
 Types of Files w.r.t. Components

6.STRIKING TOOLS:

The striking tools used in the Engineering Workshop are
1.Ball Peen Hammer.
2.Claw Hammer.METHODS OF FILING:
They are two methods of Filing.
1.Cross-Filing
2.Draw-Filing
Methods of Filing -Fitting Workshop
Methods of Filing -Fitting Workshop

1.Cross Filing:

Filing in a direction perpendicular to the axis of a component is called as Cross Filing. This filing method is used mostly in the Fitting Workshop.

2.Draw Filing:
Filing in a direction parallel to the axis of a component is called as Draw Filing.

A sequence of operations in the Fitting Workshop:

A sequence of operations used in the Fitting Workshop is as follows.

  1. Filing (Rust from the workpiece)
  2. Measuring
  3. Marking
  4. Punching
  5. Sawing
  6. Filing (removing the unwanted portion)

The Diagram about A sequence of operations used in the Fitting Workshop is presented HERE

Safe Work Practices in Fitting:

  • Wear leather shoes and not sandals.
  • Do not touch any Electrical appliance.
  • Don’t wear loose clothes in the workshop.
  • Clean the unwanted material from the workbench before starting the operation.

POWER TOOLS Used in Fitting Workshop:

The tools which are driven by means of Power(Electric current) called Power tools. In this article, I will be listing out 4 Power tools used in the Fitting workshop.

1.Power Hacksaw

2.Circular Saw

3.Drilling Machine

4.Grinding Machine

The detailed explanation of the above power tools is presented below.

1.Power Hacksaw:

  • A power hacksaw is a type of hacksaw that is powered by its own electric motor (also known as an electric hacksaw).
  • Most power hacksaws are stationary machines but some portable models exist.
  • A Power Hacksaw is used to cut the metal at required shape and size by means of a hacksaw which is driven by means of Electric motor.
  • The construction and working of Power Hacksaw were presented below.
  • The forward stroke is the cutting stroke and the backward stroke is the idle stroke. In the backward stroke, the chips are removed from the workpiece.
  • The workpiece is fixed between the two ends of the machine vice.

Construction of Power Hacksaw:

The Power Hacksaw consists of the following parts.

  1. A Vertical column with Gears and Power buttons.
  2. Hacksaw
  3. Coolant
  4. Base
  5. Machine Vice
  6. Foot/Emergency Switch

Diagram of Power Hacksaw:

Power Hacksaw
Power Hacksaw

Mechanism Involved in Power Hacksaw: CLICK HERE

Working of Power Hacksaw:

When the power supply is given to the motor, the spindle attached to the motor rotates which is connected with the pulleys. The power is transmitted between the two pulleys by means of a belt. One end of the link is connected with the pulley and the other end is connected to the fixed hacksaw frame which converts rotational motion into linear motion.

The position of the hacksaw on the workpiece is adjusted by means of a hand wheel.

The linear motion of the hacksaw cuts the workpiece by means of a fixed blade having teeth in a forward direction. The forward stroke is the cutting stroke and the backward stroke is the idle stroke. In this way, the hacksaw can cuts the material which is fixed in the machine vice.

2.Circular Saw:

The circular saw is most commonly used for cutting wood, which may be used less optimally for cutting other materials with the exchange of specific blades.
Basically, all circular saws consist of a motor with a circular blade fitted on a spindle. It can be carried from one place to another place for performing the operations.

For Diagram of Circular saw, Click Here

3.Drilling Machine:

Drilling Machine is used to drill holes on the components. Click on the link for the detailed explanation of Drilling Machine.

Click Here: Radial Drilling Machine: Working Principle, Construction, Mechanism, Types

4.Grinding Machine:

Grinding Machine is used to remove the material having (low surface finish) from the surface of a workpiece by means of a Grinding wheel. The Detailed explanation of Grinding wheel was presented below in the form of a link.

 Click Here: Surface Grinding Machine: Definition, Types of Grinding Process, Function of Parts, Working

This is the detailed explanation of all the tools used in the Fitting Workshop. If you have any doubts, feel free to ask from the comments section.

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