What is the working principle of ultrasonic machining?

What is the working principle of ultrasonic machining?

It works on the same principle of ultrasonic welding. This machining uses ultrasonic waves to produce high frequency force of low amplitude, which act as driving force of abrasive. Ultrasonic machine generates high frequency vibrating wave of frequency about 20000 to 30000 Hz and amplitude about 25-50 micron.

What are the application of ultrasonic machining?

USM is most commonly used to machining of glass, ceramics, zirconia, precious stones, and hardened steels. USM allows the cutting of complex and non-uniform shape with extremely high precision. So it is used in optical and electrical application where more precise and quality cutting is required.

What are the advantages and disadvantages of ultrasonic machining?

Advantages and disadvantages of ultrasonic machining process

• This type of process produce less heat.
• You can do the machining of hard as well as brittle material in it.
• It can be used for non-circular holes drilling just like in glass.
• This may be use for hard materials threading.

What are the advantages of ultrasonic machining process?

The advantages of Ultrasonic Machining are: This process is used for drilling both circular and non-circular holes in very hard materials like carbide, ceramics, etc. This process is best suited for brittle materials. The machining operation is simple and requires less time. This process is economical.

What are the advantages of ultrasonic machining?

How are materials removed from USM?

Ultrasonic Machining (USM) Working Principles. In this process the material of the workpiece is removed by the repetitive impact actions of abrasive particles. The erosion takes place by the abrasive particles which are carried by a liquid medium in the from of a slurry .

What are the limitations of ultrasonic machining?

Here are some disadvantages of Ultrasonic Machining: Low penetration rate. The process is limited to the machined surface of a small size. Shorter tool life. Ultrasonic vibration machining can only be used on materials with a hardness value of at least 45 HRC (Rockwell Hardness).

Which energy type is used in ultrasonic machining USM?

Mechanical energy is used in ultrasonic machining.

Under what frequency ultrasonic machining is done?

In ultrasonic machining, a tool of the desired shape vibrates at an ultrasonic frequency (19 ~ 25 kHz) with an amplitude of around 15 – 50 μm over the workpiece. Generally, the tool is pressed downward with a feed force, F between the tool and workpiece.