Gear Reproduction Using Reverse Engineering

Omar Monir Koura^1,

¹Mechanical Department, Faculty of Engineering, Modern University for Technology & Information, Egypt

Cite this paper:
Omar Monir Koura. Gear Reproduction Using Reverse Engineering. American Journal of Mechanical Engineering. 2020; 8(3):122-126. doi: 10.12691/ajme-8-3-4

Abstract

Gears, till now, are considered essential parts in the majority of mechanical machineries. Their applications are so wide that ranges from power transmission and changing of speed ratios between various mechanical units. During their life time they are subjected to continuous wear, fatigue, shocks, dynamic loads which results in gear damages or at least lowering their running performance. Replacing of the malfunctioning gear is, then, necessary. This require the change of both mating gears either through ready stored spare ones (which is normally unrealistic situation) or remanufacturing new pair of gears. This is not a direct case as gears, nowadays, are produced with profile modification which are known only at the manufacturing end. Thus, the user end has to work using the reverse technique to predict the most near acceptable design to manufacture the replacing pairs. This paper presents the parameters to be measured in the malfunctioning gear and the analysis followed that is needed to manufacture the newly replacing pair.

Keywords:
helical gear modifications reverse engineering gear measurement C# programming

This work is licensed under a Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

References:

[1]	Radzevich, Stephen P. (2012). Dudley's Handbook of Practical Gear Design and Manufacture (2nd ed.). Boca Raton, FL.: CRC Press, an imprint of Taylor & Francis Group.
[2]	Gitin M. Maitra, Hand book of gear design, 2nd edition, Fifth reprint, Tata McGraw_Hill Publishing Company Limited, New Delhi.
[3]	American Gear Manufacturers Association; American National Standards Institute, Gear Nomenclature, Definitions of Terms with Symbols (ANSI/AGMA 1012-G05 ed.), American Gear Manufacturers Association
[4]	Machinery's Handbook. New York: Industrial Press. 2012. pp. 2125.
[5]	https://www.sdp-si.com/resources/elements-of-metric-gear-technology/page3.php#Section6, “Elements 0f Metric gear technology”.
[6]	Betim Shabani and Zoran Pandilov, “Analyzing and application of reverse engineering for design and development of mechanical parts”, Mechanical Engineering - Scientific Journal, Vol. 35, No. 2, pp. 89-96 (2017).
[7]	Kumar, A.; Jain, P.K.; Pathak, P.M. (2014). Machine element reconstruction using integrated reverse engineering and rapid prototyping approach. In proceedings of the 26th All India Manufacturing Technology, Design and Research Conference (AIMTDR 2014). IIT Guwahati, Assam, India. December 12-14, 2014 (pp. 123-1, 123-5).
[8]	Gonzalo González Rey, Alejandra García Toll, and Christian Irving Enrique Rodríguez González, “A Procedure to Determine the Unknown Geometry of External Cylindrical Gears”, https://www.researchgate.net/publication/294895629_A_Procedur e_To_Determine_the_Unknown_Geometry_of_External_Cylindri cal_Gears, 19, February 2016.
[9]	Ognyan ALIPIEV, “Method of geometric calculation of involute helical gear drives, modified in two directions”, Annals Faculty of Engineering Hunedoara, International Journal of Engineering, ISSN: 1584-2665.
[10]	ISO/DIS 21771:2007: "Gears - Cylindrical Involute Gears and Gear Pairs - Concepts and Geometry", International Organization for Standardization, (2007).