![]() ![]() ![]() A thread forming tap comprising a plurality of radial portions disposed on an outer peripheral surface of a main body to form a thread part, said radial portions on said main body being configured to plastically deform an inner peripheral surface of a material to form an internal thread when said main body is turned in a first direction, wherein at least one cutting part configured for cutting the crest of the internal thread is formed between radial portions in the peripheral direction of the thread part.Ģ. Journal of Materials Processing Tecnology 212:1753–1760ĭinger G (2015) Dynamic modeling and simulation of the screwing behavior of thread forming screws.1. ![]() Surf Coat Technol 200:5532–5541Ĭarvalho AO, Brandão LC, Panzera TH, Lauro CH (2012) Analysis of form threads using flutelles taps in cast magnesium alloy (am60). Reiter AE, Brunner B, Ante M, Rechberger J (2006) Investigation of several PVD coatings for blind hole tapping in austenitic stainless steel. Veldhuis SC, Dosbaeva GK, Benga G (2007) Application of ultra-thin fluorine-content lubricating films to reduce tool/workpiece adhesive interaction during thread-cutting operations. Federal University of Uberlandia, Uberlandia, MG, Brazil. Journal Manufacturing Science Engeneering, pp 689–695.ĭa Mota, P.R., Study of tapping operation of compacted graphite iron with cemented carbide tool. Modeling and analysis of internal thread forming. J Manuf Process 22:7–20Ĭhowdhary, S., Ozdoganlar, B. Pawar S, Joshi SS (2016) Experimental analysis of axial and torsional vibrations assisted tapping of titanium alloy. B., System for compensation of synchronism errors in the process of tapping, INPT, Patent of innovation, nº BR10201501118, Brazil, 2015 Steiniger A, Siller A, Bleicher F (2015) Investigations regarding process stability aspects in thread tapping al – si alloys. Tribol Int 43:1726–1734Īmarego EJ, Marilyn NP (2002) Predictive cutting models for the forces and torque in machining tapping with straight flute taps. J Mater Process Technol 121:341–349įromentin G, Bierla A, Minfray C, Poulachon G (2010) An experimental study on the effects of lubrication on form tapping. The floating system tested reduces the axial force and torque by reducing synchronicity errors even in extremely conditions.ĭomblesky JP, Feng F (2002) A parametric study of process parameters in external thread rolling. One of the outcomes of this work was that the torque distribution along the fillet was not uniform, with the torque of the third fillet higher than the others. The second goal of this work is the investigation of the behavior of a new type of floating system in terms of torque and axial force. It also investigated the load distribution in the cutting edge for a tap operation. This current work has two main goals the first one is to study the process behavior regarding the secondary and uncontrollable characteristics, such as thread length, tool coating, feed rate, and hole’s diameter. This data limitation reduces the tool and cutting condition selection guide to geometrical characteristics. ![]() However, the knowledge held by the toolmakers is not transferred to the scientific literature, which justifies the small number of studies regarding this matter. The internal threading with tap or forming tap, is a widely applied factoring process throughout industry. ![]()
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