Abstract
In this paper, it is proposed to produce high precision screws with a diameter of <TEX>$800{\mu}m$</TEX> and a thread pitch of <TEX>$200{\mu}m$</TEX> (<TEX>$M0.8{\times}P0.2$</TEX>) by means of a cold thread rolling process. In this part II of the study, the focus is on the production and reliability testing of the prototype <TEX>$M0.8{\times}P0.2$</TEX> micro-screw. Designs for two flat dies were developed with the aid of the literature and previous studies. Process parameters during the cold thread rolling process were established through FE simulations. The simulation results showed that the threads of the micro-screw are completely formed through the rolling process. Prototype <TEX>$M0.8{\times}P0.2$</TEX> micro-screw were fabricated with a high precision thread rolling machine. In order to verify the simulation results, the deformed shape and dimensions obtained from the experiment were compared with those from the simulations. Hardness and failure torque of the fabricated micro-screw were also measured. The values obtained indicate that the CAE based process design used in this paper is very appropriate for the thread rolling of micro-sized screws.
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
