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Patent Details

Applicant:
Indian Institute of Technology (IIT) Roorkee 
Title:
An improved ultrasonic abrasive flow machining and a advice thereof 
Inventor(s):
Apurbba Kumar Sharma*, Pradeep Kumar, and Rajesha S 
Applicant:
Indian Institute of Technology (IIT) Roorkee 
Application type:
Applied - 2011-12-09 
Application Number:
3578/Del/2011 
Applied at:
India 
Entered by:
Indian Institute of Technology (IIT) Roorkee 
Abstract:
The present invention provides as improved ultrasonic abrasive flow machining for improved finishing of surface. The process is developed to enhance the capability of the traditional abrasive flow machining process by addition of high frequency of for ex. 5kHz-20kHz vibration to the work piece whereby the effectiveness of the abrasives (cutting edges) increases owing to better contact conditions at the tool-work interface. The instant invention comprises of a piezo device so as to impart the uniaxial vibratory assistance to the work piece through a mechanical coupling device inside a specially designed multipurpose tooling. The amplitude of vibration is kept within 10µm. The new process records enhancements in surface finish and material removal at about 787% and 876% respectively while compared to the convectional AFM process (while machining Inconel 718). Further said process is simple, safe and easy to adopt in terms of operation, control and add-on requirements. It can be used for the jobs irrespective of their shape and internal geometry.  

 
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