Form tapping bridgeport12/3/2023 ![]() ![]() J Constr Steel Res 126:174–186įransplass H, Langseth M, Hopperstad OS (2011) Tensile behaviour of threaded steel fasteners at elevated rates of strain. Hu Y, Shen L, Nie S, Yang B, Sha W (2016) Fe simulation and experimental tests of high-strength structural bolts under tension. Grimsmo E, Aalberg A, Langseth M, Clausen A (2016) Failure modes of bolt and nut assemblies under tensile loading. Masmoudi N, Soussi H, Krichen A (2017) Determination of an adequate geometry of the flanged hole to perform formed threads. Int J Adv Manuf Technol 101:1051–1063įilho SLMR, de Oliveira JA, Arruda ÉM, Brandão LC (2016) Analysis of burr formation in form tapping in 7075 aluminum alloy. Int J Adv Manuf Technol 79:779–792ĭe Oliveira JA, Filho SLMR, Brandao LC (2019) Investigation of the influence of coating and the tapered entry in the internal forming tapping process. Maciel D T, Filho SLMR, Lauro CH, Brandão LC (2015) Characteristics of machined and formed external threads in titanium alloy. CIRP Ann 54:519–522įromentin G, Bierla A, Minfray C, Poulachon G (2010) An experimental study on the effects of lubrication in form tapping. The results and discussions are presented by comparing the cut and form triangular ISO thread and by studying the effect of the initial tap hole diameter.įromentin G, Poulachon G, Moisan A, Julien B, Giessler J (2005) Precision and surface integrity of threads obtained by form tapping. Therefore, the tribological behavior of each specimen was highlighted through thread wear analysis. The evolution of the friction coefficient versus the number of cycles of clamping/unclamping was also established. The interface shear was quantified by the identification of the friction coefficient which was determined from the load-tightening torque relationship. Experiments revealed that the internal shear results in three-step spread over five distinct phases. In the second test, a tightening torque was applied on a pressure screw assembly to investigate principally the interface shear behavior of thread. The first one that was used for analyzing the internal shear of thread consists in applying an axial displacement on the screw mounted on a fixed nut. Two tests of the screw-nut assembly were carried out. The geometry of the tapping thread was visually inspected on a cross section of thread. ![]() Two turns of thread engagement were only considered. The principal aim of this work is the development of a specific experimental device used to identify the intrinsic characteristics of a thread and to characterize the influence of the tapping process. ![]()
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