August 9, 2021

Difference Between Conventional and Non-Conventional Machining Processes

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There has been a rapid growth in the development of harder to machine metals and alloys during the last two decades.

Here, you will know about the Conventional and Non-Conventional machining processes and their differences.

So, grab your seat in Engineers Rail and relax, while I start the engine and take you to the Knowleable journey.

So, Let’s get started…

Before I jump to the topic of the article, It would be nice to let get an overview of these terms before. What do you say?

♦There is two types of Metal removal process

  • Conventional Machining Process

  • Un-Conventional Machining Process

Conventional Machining Process-

As the name suggests, the Conventional Machining process is- Where the metal removing process is done manually or physically. This machining process is also known as the Traditional Machining process.

Conventional machining is uneconomical for such materials and the degree of accuracy and surface finish attainable is poor.

These are some examples of the same.

Example of Conventional machining process–
  • Turning

  • Boring

  • Drilling

  • Milling

  • Shaping

  • Sawing

  • Planing

  • Broaching

  • Slotting

  • Reaming

  • Grinding

  • Tapping

These were some examples of the Traditional machining process, Now let’s talk about some advantages of the Traditional machining process.

Advantages of Conventional Machining Process–

Here are some advantages-

  • The complex specimen can be machined

  • Easy setup

  • Economical

Non-Conventional Machining Process-

Non-conventional machining processes are those- where the metal removal process is done through mechanical, electrochemical, chemical, thermoelectric and without involving conventional tools. It is also known as the Modern Machining process or Un-Traditional Machining process.

Merchant(1960) emphasized the need for the development of newer concepts in metal machining. By adopting a unified programme and utilizing the result of basic and applied research.

The newer machining processes are often called ‘modern machining process’ or ‘Unconventional machining process methods’. These are unconventional in the sense that conventional tools are not employed for metal cutting, instead energy.

Example of Un-conventional machining process-
  • Ultrasonic Machining(USM)

  • Abrasive Jet Machining(AJM)

  • Water Jet Machining(WJM)

  • Electrochemical Machining(ECM)

  • Electrochemical Grinding(ECG)

  • Electrochemical Deburring(ECD)

  • Electrochemical Honing(ECH)

  • Chemical Machining(CHM)

  • Electric Discharge Machining(EDM)

  • Plasma Arc Machining(PAM)

  • Electron Beam Machining(EBM)

  • Neutral Particle Etching(NPE)

  • Laser Beam Machining(LBM)

  • Hot Machining(HM)

Classification of Un-conventional Machining Process-

The classification of modern machining processes is based on the type of energy used, the metal removal mechanism, and the source of energy requirement.

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