NONCONVENTIONAL ASPECTS IN EVALUATION OF THE MACHINABILITY BY DRILLING UNDER CONSTANT FEED FORCE

  • Vasile Manole ”Gheorghe Asachi” Technical University of Iasi, Department of Machines Manufacturing Technology
  • Laurentiu Slatineanu ”Gheorghe Asachi” Technical University of Iasi, Department of Machines Manufacturing Technology
  • Ana Badanac ”Gheorghe Asachi” Technical University of Iasi, Department of Machines Manufacturing Technology
  • Sergiu Constantin Olaru ”Gheorghe Asachi” Technical University of Iasi, Department of Machines Manufacturing Technology
  • Oana Dodun ”Gheorghe Asachi” Technical University of Iasi, Department of Machines Manufacturing Technology
Keywords: machinability by drilling, drilling constant force feed, drilling and chips

Abstract

The information concerning the evaluation of distinct materials machinability by drilling under constant feed force can be used in optimal design of the cutting conditions for workpieces made of such materials. It is important to identify a method able to ensure the determination of machinability indexes with an adequate precision and in a short time. A theoretical analysis led to some drilling schemes that could be applied in order to determine a method for the evaluation of materials machinability by drilling under constant force feed. An experimental equipment was designed, built and tested by considering a machining scheme resulted as a consequence of the analysis of the drilling schemes identified in the specialty literature. As a result of the experimental research developed by means of the equipment, some empirical mathematical models were established, in order to differentiate distinct materials from the point of view of machinability by drilling under constant force feed.machinability by drilling

References

1. Crețu, G., Fundamentals of experimental research. Laboratory handbook (in Romanian), “Gheorghe Asachi” Technical University of Iaşi, (1992).
2. Gherman, A.L., Slătineanu, L., Coteață, M., Equipment for evaluation of machinability by drilling under constant force feed, patent Romania, RO128618, (2011).
3. Hideaki, K., Kiyoshi, T., Ikuo, S., Yoshio, K., Hard-to-cut material machining device, Japan patent JP2006051577 (A), (2006).
4. Jana, D., Ziki, A., Wüthrich, R., The machining gap during constant velocity-feed glass micro-drilling by Spark Assisted Chemical Engraving, Journal of Manufacturing Processes, vol. 19, pp. 87–94, (2015).
5. Lindner, H., Drilling spindle drive for vertical drilling machines, patent specification 470,159, 1936.
6. Machinability definition, available: http://www. sandvik.coromant.com/en-us/knowledge /materials/workpiece_materials/machinability_definition?Country=ro, accessed at 10.05.2016
7. Rey, P.A., LeDref, J., Senatore, J. and Landon, Y., Modelling of cutting forces in orbital drilling of titanium alloy Ti-6Al-4V, International Journal of Machine Tools and Manufacture, Vol. 106, pp. 75-88, (2006).
8. Salak, A., Selecka, M., Dannieger, H., Machinability of powder metallurgy steels, CIPS, Cambridge International Science Publishing, available : https://books.google.ro/books?id= pZjfyn6ZWDAC&pg=PA129&lpg=PA129&dq=equipment+drilling+by+cutting+under+constant+feed+force&source=bl&ots=JB3fATrVMx&sig=qAA_K5PjdwmRB0XSI_DiQPZ-Ozs&hl=ro&sa=X&ved=0ahUKEwifjv-Boc_MAhXmI8AKHWMjCyoQ6AEIITAB#v=onepage q=equipment%20drilling%20by%20cutting%20under%20constant%20feed%20force&f=false, accessed at 10.05.2016.
9. Shinichi, M., Japan patent JPH03208508 (A) (1991).
Published
2016-09-30
How to Cite
Manole, V., Slatineanu, L., Badanac, A., Olaru, S., & Dodun, O. (2016). NONCONVENTIONAL ASPECTS IN EVALUATION OF THE MACHINABILITY BY DRILLING UNDER CONSTANT FEED FORCE. Nonconventional Technologies Review, 20(3). Retrieved from http://revtn.ro/index.php/revtn/article/view/141

Most read articles by the same author(s)