Abstract
The concept of author’s application Geometrical tolerancing that supports teaching and vocational training on the geometrical product specifications rules and verification methods is briefly presented. The maximum material requirement (MMR) modifier defined in the ISO 2692 changes the classical meaning of the geometrical tolerance symbols. The classical concept of a tolerance zone is replaced by the concept of a gauge. The idea of the maximum material modifier is based on functional requirement – assembleability. The paper contains a few screenshots from the interactive animations that are employed to demonstrate the MMR concept as well as relevant verification method. The sequence of developed scenes effectively help to understand and distinguish the role of the MMR modifier for the tolerance features and the datum features. For the datum features application of the MMR modifier produces an additional mobility for a group of all features considered as a pattern. This extra mobility depends on the datum feature actual mating sizes as well as on the 3D configuration of the datums and their precedence. It is demonstrated that employed animations clearly show that the bonus tolerance when the datum feature deviates from the MMC is virtually allowable rarely – only for specific configurations of a datum features geometry.
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Morse, E., Dantan, J.-Y., Anwer, N., Soderberg, R., Moroni, G., Qureshi, A., Jiang, X., Mathieu, L.: Tolerancing: managing uncertainty from conceptual design to final product. CIRP Ann. Manuf. Technol. 67, 695–717 (2018)
Charpentier, F.: Handbook for the Geometrical Product Specifications of Products: The ISO-GPS standards. AFNOR (2016)
Garland, N., Glithro, R., Wade, R.: The challenges facing education in engineering drawing practice. In: International Conference on Engineering & Product Design Education. Oslo & Akershus University College of Applied Sciences, Norway (2017)
Humienny, Z., Berta, M.: Using animations to support the understanding of geometrical tolerancing concepts. Technisches Messen 82(9), 422–431 (2015)
Berta, M., Humienny, Z.: XXII world congress of the international measurement confederation (IMEKO 2018). IOP Conf. Ser.: J. Phys.: Conf. Ser. 1065 (2018)
Berney, S., Betrancourt, M.: Does animation enhance learning? A meta-analysis. Comput. Educ. 101, 150–167 (2016)
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Berta, M., Humienny, Z. (2019). Hard Gauge Visualization – Effective Tool for MMR Verification Discussion. In: Majstorovic, V., Durakbasa, N. (eds) Proceedings of the 12th International Conference on Measurement and Quality Control - Cyber Physical Issue. IMEKOTC14 2019. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-030-18177-2_8
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DOI: https://doi.org/10.1007/978-3-030-18177-2_8
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