Author : Vironika Kulkarni 1
Date of Publication :7th February 2017
Abstract: Hardness is the property of material that enables it to resist plastic deformation, penetration, Indentation and scratching. Therefore, hardness is important from an engineer standpoint because resistance to wear by either friction or erosion by steam, oil, and water generally increase with hardness. There are two methods of hardness testing Rockwell and Superficial Rockwell. These test methods cover the determination of the Rockwell hardness and the Rockwell superficial hardness of metallic materials by the Rockwell indentation hardness principle. In the conventional system load and dial gauge assembly is manually adjusted to estimate hardness. We have proposed Arduino controller based system to measure and process related data so as to avoid manual errors and to improve accuracy of estimation the all the reading will be displayed on Nextion display and Printed data output will also made available with PNP-64 thermal printer interface. Through this paper we have proposed state of art technology using Arduino controller and Nextion display to make hardness testing more sophisticated and user friendly.
Reference :
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- S.P. Rockwell, "The Testing of Metals for Hardness, Transactions of the American Society for Steel Treating, Vol. II, No. 11, August 1922, pp. 1013–1033
- ASTM International Standard E18, Standard Test Methods for Rockwell Hardness of Metallic Materials, ASTM International, West Conshohocken, PA, 2011.