Joining polymer parts with self-tapping screws: an improvement of the screw thread geometry
Source abstract
Abstract
In the present article, the influence of the self-tapping screw’s geometry during the thread forming processes in polymer types used in several industries was studied and analysed using experimental measurement and the finite element method. A number of parameters, such as assembly, type of materials and geometry, were studied. Several commercial screw topologies were also studied, and it was demonstrated that the geometry of the self-tapping screws could be optimised. A new geometry was proposed and then compared against the commercial self-tapping screws. The proposed screw obtained a smaller installation torque and a greater stripping torque, which resulted in a greater clamp load in the self-tapping joining. The clamp load loss due to relaxation was reduced up to 10% compared to the best existing geometry.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Electronic Packaging and Soldering Technologies · Advanced Welding Techniques Analysis · Mechanical Behavior of Composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (26)
Show source-provided references
1. Jiang W, Sundarram SS, Wong D, Koo JH, Li W (2014) Polyetherimide nanocomposite foams as an ablative for thermal protection applications. Compos Part B Eng 58:559–565. https://doi.org/10.1016/j.compositesb.2013.10.04010.1016/j.compositesb.2013.10.040 ↗
2. Mortazavian S, Fatemi A (2015) Fatigue behavior and modeling of short fiber reinforced polymer composites including anisotropy and temperature effects. Int J Fatigue 77:12–27. https://doi.org/10.1016/j.ijfatigue.2015.02.02010.1016/j.ijfatigue.2015.02.020 ↗
3. Mortazavian S, Fatemi A (2015) Fatigue behavior and modeling of short fiber reinforced polymer composites: a literature review. Int J Fatigue 70:297–321. https://doi.org/10.1016/j.ijfatigue.2014.10.00510.1016/j.ijfatigue.2014.10.005 ↗
4. Launay A, Maitournam MH, Marco Y, Raoult I, Szmytka F (2011) Cyclic behaviour of short glass fibre reinforced polyamide: experimental study and constitutive equations. Int J Plast 27(8):1267–1293. https://doi.org/10.1016/j.ijplas.2011.02.00510.1016/j.ijplas.2011.02.005 ↗
5. Seong DG, Kang C, Pak SY, Kim CH, Song YS (2019) Influence of fiber length and its distribution in three phase poly(propylene) composites. Compos Part B Eng 168:218–225. https://doi.org/10.1016/j.compositesb.2018.12.08610.1016/j.compositesb.2018.12.086 ↗
6. Baird DG, Collias DI (2014) Polymer processing: principles and design, 2nd Editio. John Wiley & Sons
7. Fakult T, Tome A, Fachgutachter E, et al (2000) Vorspannkraftrelaxation von Kunststoff-Direktverschraubungen
8. Ehrenstein GW (2004) Handbuch Kunststoff-Verbindungstechnik. Hanser
9. Technologies AG (2007) Threaded fasteners for plastics. Michigan
10. Dratschmidt F, Ehrenstein GW (1997) Threaded joints in glass fiber reinforced polyamide. Polym Eng Sci 37(4):744–755. https://doi.org/10.1002/pen.1171810.1002/pen.11718 ↗
11. Seneviratne LD, Ngemoh FA, Earles SWE (2000) An experimental investigation of torque signature signals for self-tapping screws. Proc Inst Mech Eng Part C J Mech Eng Sci 214(2):399–410. https://doi.org/10.1243/095440600152306510.1243/0954406001523065 ↗
12. Seneviratne LD, Ngemoh FA, Earles SWE, Althoefer KA (2001) Theoretical modelling of the self-tapping screw fastening process. Proc Inst Mech Eng Part C J Mech Eng Sci 215(2):135–154. https://doi.org/10.1243/095440601152056210.1243/0954406011520562 ↗
13. Althoefer K, Lara B, Seneviratne LD (2005) Monitoring of self-tapping screw fastenings using artificial neural networks. J Manuf Sci Eng 127(1):236. https://doi.org/10.1115/1.183128610.1115/1.1831286 ↗
14. Nassar SA, Housari BA (2007) Study of the effect of hole clearance and thread fit on the self-loosening of threaded fasteners. J Mech Des 129(6):586. https://doi.org/10.1115/1.271722710.1115/1.2717227 ↗
15. Stéphan P, Mathurin F, Guillot J (2011) Analytical study of maximal tapping torque during forming screw process. J Mater Process Technol 211(2):212–221. https://doi.org/10.1016/j.jmatprotec.2010.09.01310.1016/j.jmatprotec.2010.09.013 ↗
16. Stéphan P, Mathurin F, Guillot J (2012) Experimental study of forming and tightening processes with thread forming screws. J Mater Process Technol 212(4):766–775. https://doi.org/10.1016/j.jmatprotec.2011.10.02910.1016/j.jmatprotec.2011.10.029 ↗
17. Wu Z, Nassar SA, Jagatap S, Satav K (2016) Thread forming in lightweight material joints using self-tapping screws. J Manuf Sci Eng 138(9):091006. https://doi.org/10.1115/1.403297210.1115/1.4032972 ↗
18. Mackerle J (2003) Finite element analysis of fastening and joining: a bibliography (1990-2002). Int J Press Vessel Pip 80(4):253–271. https://doi.org/10.1016/S0308-0161(03)00030-910.1016/S0308-0161(03)00030-9 ↗
19. Kafie-Martinez J, Keating PB, Chakra-Varthy P, Correia J, de Jesus A (2018) Stress distributions and crack growth in riveted lap joints fastening thick steel plates. Eng Fail Anal 91:370–381. https://doi.org/10.1016/j.engfailanal.2018.04.04810.1016/j.engfailanal.2018.04.048 ↗
20. Vilela PML, Carvalho H, Grilo LF, Montenegro PA, Calçada RB (2019) Unitary model for the analysis of bolted connections using the finite element method. Eng Fail Anal 104:308–320. https://doi.org/10.1016/j.engfailanal.2019.06.00110.1016/j.engfailanal.2019.06.001 ↗
21. Ellwood KRJ, Fesko D, Bauer DR (2004) An axisymmetric model for thread forming in polycarbonate and polypropylene screw and boss fasteners. Polym Eng Sci 44(8):1498–1508. https://doi.org/10.1002/pen.2014610.1002/pen.20146 ↗
22. Arruda E, Boyce M (1993) Evolution of Plastic Anisotropyin amorphous polymers during finite straining. Int J Plast 2310.1016/0749-6419(93)90034-N ↗
23. Arriaga A, Lazkano JM, Pagaldai R, Zaldua AM, Hernandez R, Atxurra R, Chrysostomou A (2007) Finite-element analysis of quasi-static characterisation tests in thermoplastic materials: experimental and numerical analysis results correlation with ANSYS. Polym Test 26(3):284–305. https://doi.org/10.1016/j.polymertesting.2006.10.01210.1016/j.polymertesting.2006.10.012 ↗
24. Subhash G, Zhang W (2002) Investigation of the overall friction coefficient in single-pass scratch test. Wear 252(1-2):123–134. https://doi.org/10.1016/S0043-1648(01)00852-310.1016/S0043-1648(01)00852-3 ↗
25. Abaqus (2017) ABAQUS 6.14 Documentation. http://50.16.225.63/v2016/index.html
26. Plastic C (2017) CAMPUS PLASTIC. www.campusplastics.com