Visual Simulation of Grinding Process

Author : M. Sakakura, S. Tsukamoto, T. Fujiwara, I. Inasaki

  • Keywords : Grinding, Simulation, Surface Generation

Grinding is one of the machining methods for finishing which is performed by using a large number of abrasive grains with irregular shapes, and random distribution. While this feature enables accurate and high quality machining, it complicates analysis of the grinding process. In order to solve this problem, several computer simulations have been carried out using the Monte Carlo Method. Most of them, however, statically calculate geometric interference between a grain and a workpiece, and have not provided enough achievements for practical applications. In this study, taking the background into account, a simulation program has been developed based on the elastic behaviour model of a grain which has been previously investigated by the authors. The program focuses on the generation process of a workpiece surface, and simulates the interaction of grains with a workpiece, which includes the elastic and plastic deformation and the removal of workpiece material. The simulation result is visualized using a three-dimensional graphics technique. An example of the simulation shown in this study verifies that the simulation program makes it easy to analyze the microscopic grinding phenomena, and can be used as a practical tool for predicting the grinding results and for optimizing grinding parameters.

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scess6's picture
Submitted by scess6 on Wed, 05/07/2006 - 7:24pm.

Hi. I would like to know:

(1) what happened if the force coefficient takes the values between 0.4 to 2.1?

(2)how did you observe the value of the force coefficient?

Thank you.


sakakura's picture
Submitted by sakakura on Wed, 12/07/2006 - 7:10am.

Thank you very much for your interest in our paper.
Here are our answers to your questions:

(1) It was confirmed from the simulation that when the force coefficient α increases from 0.4 to 2.1, the number of active grains also increases and consequently smaller surface roughness was attained. The simulation results were as follows:
(force coefficient α, surface roughness [um Ra]) = (0.0, 0.90), (0.4, 0.52), (0.7, 0.28), (1.4, 0.28), (2.1, 0.28)

(2) The value of the force coefficient 0.293 was obtained from an experiment with a single grain not a grinding wheel.

Thank you.


vharicharan's picture
Submitted by vharicharan on Tue, 14/11/2006 - 9:35am.

Hi,

I am very much interested in your paper, can i request a help....???

I would like an electronic copy of the paper. I think your paper has some details that might help me a lot... Please Help me....

my mailid is vharicharan@gmail.com

please corrspond...
thank you


kwng's picture
Submitted by kwng on Thu, 16/11/2006 - 11:19pm.

Hi, vharicharan. Thank you for your interest in this paper.I apologise for the delay in replying your request and for failing to list all electronic copies of the papers in this group (Digital manufacturing) thus preventing any download. I have listed the electronic version of this paper for you to download (just click the pdf file). I have also listed all other papers for downloading for Digital manufacturing, just in case you are interested in them. Hope you will be able to access the paper that you are interested in. If you still unable to download it, email me at NgKW1@cf.ac.uk


vharicharan's picture
Submitted by vharicharan on Fri, 17/11/2006 - 5:02am.

Thank you very much for the paper, It was really very informative...

just a couple of questions more... I hope you wont mind...
How were the results graphically displayed..??? No mention is made of any software or any analysis method...??
Were the results from simulation validated with actual data from a grinidng machine....???

Please correspond...

Thank You,
vharicharan

vharicharan@gmail.com


Pham's picture
Submitted by Pham on Fri, 17/11/2006 - 4:33pm.

Hello Vharicharan,
I suggest you write to the authors directly as they are unlikely to check this website, now that the conference has closed. (IPROMS 2006 took place between 3 and 14 July 2006.)
Good luck with your research!
We hope you will want to contribute to future IPROMS conferences.
DTP.


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