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Appl. Sci. 2016, 6(10), 300; doi:10.3390/app6100300

Analysis of Sheet Metal Tapping Screw Fabrication Using a Finite Element Method

1
Department of Mechanical & Automation Engineering, Kao-Yuan University, Kaohsiung City 821, Taiwan
2
Department of Applied Geoinformatics, Chia Nan University of Pharmacy & Science, Tainan City 717, Taiwan
*
Author to whom correspondence should be addressed.
Academic Editor: Teen-Hang Meen
Received: 20 June 2016 / Revised: 5 October 2016 / Accepted: 8 October 2016 / Published: 18 October 2016
View Full-Text   |   Download PDF [6514 KB, uploaded 18 October 2016]   |  

Abstract

The malformation of sheet metal tapping screw threads in the screw threading process increases the cost of screw threading dies and their maintenance. Die factories do not reveal their screw threading die design techniques, so production and maintenance processes are established by trial-and-error or worker experience and passing down such techniques and documenting quality control is difficult. In this study, screw thread forming design and process analysis were carried out by combining computer-aided design software with computer-aided metal forming analysis software. Simulation results were verified in an actual forming process. The sheet metal tapping screw forging size error was less than 0.90%, except at a sharp angle, which was associated with an error of 3.075%, thereby demonstrating the accuracy of the simulated forming process. The numerical analysis process can be utilized to shorten forming development time; to reduce the number of die tests, and to improve product quality and die service life, reducing the cost of development and promoting the overall competitiveness of the company. View Full-Text
Keywords: sheet metal tapping screw; screw threading die; computer aided design; computer aided metal forming analysis sheet metal tapping screw; screw threading die; computer aided design; computer aided metal forming analysis
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Hsia, S.-Y.; Chou, Y.-T.; Lu, G.-F. Analysis of Sheet Metal Tapping Screw Fabrication Using a Finite Element Method. Appl. Sci. 2016, 6, 300.

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