INTRODUCTION AND MECHANICAL ENERGY BASED PROCESSES

1. NON-TRADITINAL
MACHINING PROCESS

2. TRADITIONAL Machining
• When people hear the word "machining" they
generally think of machines that utilize
mechanical energy to remove material from
the work piece

3. Milling machines, saws and lathes are some of
the most common machines using mechanical
energy to remove material.
The tool makes contact with the work piece
and the resulting shear causes the material to
flow over the tool.
TRADITIONAL Machining

4. . Shear Force
Causes Metal
removal

5. Why – Non-traditional Machining
It have been developed for applications where traditional
machining methods were
• impractical,
• incapable,
• or uneconomical.

6. Non – Traditional Machining
• The tool having no contact with work piece.
• They are using some new techniques in machining
like
1. Erosion
2. Corrosion
3. Laser light
4. ultrasonic sound
5. Electroplating method ……..and so on.

7. Categories
1.Mechanical
2.Electrical
3.Thermal
4.Chemical
Non traditional machining methods are typically divided into the following categories:

8. Mechanical -
• Ultrasonic Machining,
• Rotary Ultrasonic Machining,
• Ultrasonically Assisted Machining

9. Electrical
• Electrochemical Discharge Grinding,
• Electrochemical Grinding,
• Electrochemical Honing,
• Hone-Forming,
• Electrochemical Machining,
• Electrochemical Turning,
• Shaped Tube Electrolytic Machining,
• Electro-Stream

10. Thermal
• Electron Beam Machining,
• Electrical Discharge Machining,
• Electrical Discharge Wire Cutting,
• Electrical Discharge Grinding,
• Laser Beam Machining.

11. Chemical
• Chemical Milling,
• Photochemical Machining

12. Advantages
1) High accuracy and surface finish
2) No direct contact of tool and work piece,
so there is less/no wear
3) Tool life is more
4 ) Quieter operation

13. Dis-advantages
1) high cost
2) complex set-up
3) skilled operator required

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