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Selection of machining datum and allocation of tolerance through tolerance charting technique

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Abstract

Tolerance charting is an effective tool to determine the optimal allocation of working dimensions and working tolerances such that the blueprint dimensions and tolerances can be achieved to accomplish the cost objectives. The selection of machining datum and allocation of tolerances are critical in any machining process planning as they directly affect any setup methods/machine tools selection and machining time. This paper mainly focuses on the selection of optimum machining datums and machining tolerances simultaneously in process planning. A dynamic tolerance charting constraint scheme is developed and implemented in the optimization procedure. An optimization model is formulated for selecting machining datum and tolerances and implemented with an algorithm namely Elitist Non-Dominated Sorting Genetic Algorithm (NSGA-II).The computational results indicate that the proposed methodology is capable and robust in finding the optimal machining datum set and tolerances.

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Author information

Authors and Affiliations

  1. Department of Mechanical Engineering, TRP Engineeering College, Tiruchirappalli, 621105, TamilNadu, India

    Manoharan Thilak

  2. Department of Mechanical Engineering, Bannari Amman Institute of Technology, Sathyamangalam, 638401, TamilNadu, India

    Karuppan Sivakumar

  3. Department of Mechanical Engineering, Shivani Engineering College, Tiruchirappalli, 620009, TamilNadu, India

    Govindharajalu Jayaprakash

Authors
  1. Manoharan Thilak
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  2. Karuppan Sivakumar
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  3. Govindharajalu Jayaprakash
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Corresponding author

Correspondence to Manoharan Thilak.

Additional information

THILAK Manoharan, is currently working as an assistant professor at Department of Mechanical Engineering, TRP Engineering College [SRM GROUP], Trichy, TamilNadu, India. He received his master degree on CAD/CAM in J. J. College of Engineering & Technology, TamilNadu, India in 2006. He has published 19 papers in national and international conferences and 2 international and 1 national journal papers. His current research interest includes Tolerance analysis, Tolerance charting and Optimization..

SIVAKUMAR Karuppan, is currently working as an professor at Department of Mechanical Engineering, Bannari Amman Institute of Technology, athyamangalam-638401, India. He received his BE(mechanical engineering) from Government College of Engineering, Tirunelveli and M.Tech(quality assurance) and PhD degree in production engineering from National Institute of Technology, Trichy, and he has 15-years of research and teaching experience. He has published 42 papers in national and international conference and 9 international and 1 national journal papers and his field of interest is the tolerance design and quality engineering. At present he guides nine PhD research scholars.

JAYAPRAKASH Govindharajalu, is currently as an professor at Department of Mechanical Engineering, Shivani College of Engineering, TamilNadu, India. He received his master degree on CAD in Sathyabama Deemed University, Tamilnadu, India in 2006. He is currently doing PhD degree in Anna University-Chennai, Tamil nadu, India. He has published 21 papers in national and international conferences and 2 international journal papers. His current research interest includes Tolerance analysis and Optimization..

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Thilak, M., Sivakumar, K. & Jayaprakash, G. Selection of machining datum and allocation of tolerance through tolerance charting technique. Chin. J. Mech. Eng. 25, 697–705 (2012). https://doi.org/10.3901/CJME.2012.04.697

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  • DOI: https://doi.org/10.3901/CJME.2012.04.697

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