naa a22 4500 510822436 CHVBK 20180411083540.0 cr unu---uuuuu 180411e20130901xx s 000 0 eng 10.1007/s12541-013-0223-7 doi (NATIONALLICENCE)springer-10.1007/s12541-013-0223-7 Effect of repeated insertions into a mesoscale pinhole assembly: Case of interference fit [Elektronische Daten] [Jin-Woong Kim, Hae-Sung Yoon, Sung-Hoon Ahn] The importance of micro-scale tolerance has increased due to the growing demands for micro component devices. However most existing standards and previous studies of tolerances have focused on milli-scale assemblies. In this study, a micro-scale pinhole assembly was analyzed, and the forces obtained under repeated insertions were measured. Tungsten carbide pins with different tip edges were fabricated and inserted into an aluminum hole element. From the force-measurement results, most of the plastic deformation occurred during the first insertion, as repeated insertions showed the same magnitude of force. For a given micro-scale tolerance, tools with sharpened tip edges had larger insertion forces because they had larger frictional areas. The shear stress values obtained during the insertions were calculated from the measured forces and compared with each other. The shear limit under elastic deformation was analyzed using a thick-walled cylinder model. During the repeated insertions, the calculated shear limit matched the experimental results well, and it was not affected by the interference or pin diameter. The contribution of this study is a shear stress model for repeated interference fits of a pinhole assembly with micro-scale tolerance, considering different pin-tip edges. Korean Society for Precision Engineering and Springer-Verlag Berlin Heidelberg, 2013 Interference nationallicence Press fit nationallicence Tolerance nationallicence Mesoscale nationallicence Micro-scale nationallicence Kim Jin-Woong School of Mechanical and Aerospace Engineering, Seoul National University, Gwanak-Ro 1, Gwanak-Gu, 151-744, Seoul, South Korea aut Yoon Hae-Sung School of Mechanical and Aerospace Engineering, Seoul National University, Gwanak-Ro 1, Gwanak-Gu, 151-744, Seoul, South Korea aut Ahn Sung-Hoon School of Mechanical and Aerospace Engineering, Seoul National University, Gwanak-Ro 1, Gwanak-Gu, 151-744, Seoul, South Korea aut International Journal of Precision Engineering and Manufacturing Springer Berlin Heidelberg 14/9(2013-09-01), 1651-1654 2234-7593 14:9<1651 2013 14 12541 https://doi.org/10.1007/s12541-013-0223-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12541-013-0223-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kim Jin-Woong School of Mechanical and Aerospace Engineering, Seoul National University, Gwanak-Ro 1, Gwanak-Gu, 151-744, Seoul, South Korea aut NATIONALLICENCE 700 1- Yoon Hae-Sung School of Mechanical and Aerospace Engineering, Seoul National University, Gwanak-Ro 1, Gwanak-Gu, 151-744, Seoul, South Korea aut NATIONALLICENCE 700 1- Ahn Sung-Hoon School of Mechanical and Aerospace Engineering, Seoul National University, Gwanak-Ro 1, Gwanak-Gu, 151-744, Seoul, South Korea aut NATIONALLICENCE 773 0- International Journal of Precision Engineering and Manufacturing Springer Berlin Heidelberg 14/9(2013-09-01), 1651-1654 2234-7593 14:9<1651 2013 14 12541 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer