NEW EXTRUSION PROCESS FOR PRODUCING TWIST DRILLS USING SPLIT DIES

Tomasz BULZAK

t.bulzak@pollub.pl
Lublin University of Technology, Nadbystrzycka Street 36, 20-618 Lublin (Poland)

Zbigniew PATER


Lublin University of Technology, Nadbystrzycka Street 36, 20-618 Lublin (Poland)

Janusz TOMCZAK


Lublin University of Technology, Nadbystrzycka Street 36, 20-618 Lublin (Poland)

Abstract

The paper presents a new extrusion process for producing twist drills using split dies. The design of the dies is described, where the profile of the flute-forming element is the same as the profile of the flute on the plane inclined to the drill axis at an angle equal to the helix angle. The proposed method for the extrusion of twist drills by the new type of dies is verified by numerical modeling. Three cases of the extrusion process are modelled, each with a different position of the flute-forming element relative to the axis of the drill. The paper investigates the effect of the position of the flute-forming element on the angle of inclination of the flutes and the cross-section shape of the drill. Numerical modeling is performed using DEFORM-3D.


Keywords:

extrusion, twist drill, FEM, experiment

Bulzak, T., & Pater, Z. (2013). Numerical analysis of the extrusion process of twist drills. Acta Metallurgica Slovaca, 19, 132–140. https://doi.org/10.12776/ams.v19i2.97
DOI: https://doi.org/10.12776/ams.v19i2.97   Google Scholar

Bulzak, T., Tomczak, J., & Pater, Z. (2016). Wpływ parametrów matrycy na geometrię wyciskanych wierteł krętych. Hutnik – Wiadomości Hutnicze, 83, 390-392. https://doi.org/10.15199/24.2016.9.3
DOI: https://doi.org/10.15199/24.2016.9.3   Google Scholar

Bulzak, T., Tomczak, J.,& Pater, Z. (2014). Method for producing twist drills by extrusion using a three-slide forging press. Key Engineering Materials, 622–623, 129–135. https://doi.org/10.4028/www.scientific.net/KEM.622-623.129
DOI: https://doi.org/10.4028/www.scientific.net/KEM.622-623.129   Google Scholar

Cristobal, M., Ramírez, E. I., Ruiz, O., Ortiz, A., & Jacobo, V. H. (2017). Sensitivity analysis on ram speed of a direct extrusion process model using a porthole die through CEL method. The International Journal of Advanced Manufacturing Technology, 90, 45–57. https://doi.org/10.1007/s00170-016-9279-8
DOI: https://doi.org/10.1007/s00170-016-9279-8   Google Scholar

Dong, W. P., & Chen, J. (2008). 3D FEA simulation of 4A11 piston skirt isothermal forging process. Transactions of Nonferrous Metals Society of China, 18, 1196–1200. https://doi.org/10.1016/S1003-6326(08)60204-6
DOI: https://doi.org/10.1016/S1003-6326(08)60204-6   Google Scholar

Fang, G., Zhou, J., & Duszczyk, J. (2009). Extrusion of 7075 aluminium alloy through doublepocket dies to manufacture a complex profile. Journal of Materials Processing Technology, 209, 3050–3059. https://doi.org/10.1016/j.jmatprotec.2008.07.009
DOI: https://doi.org/10.1016/j.jmatprotec.2008.07.009   Google Scholar

Hwang, Y. M., & Chang, C. N. (2014). Hot extrusion of hollow helical tubes of magnesium alloys. Procedia Engineering, 81, 2249–2254. https://doi.org/10.1016/j.proeng.2014.10.316
DOI: https://doi.org/10.1016/j.proeng.2014.10.316   Google Scholar

Jiang, C. P. (2015). The effect of initial grain size on the mechanical properties and deformability of titanium alloy in a direct extrusion process. International Journal of Precision Engineering and Manufacturing, 16, 301–307. https://doi.org/10.1007/s12541-015-0040-2
DOI: https://doi.org/10.1007/s12541-015-0040-2   Google Scholar

Kim, S. Y., Kubota, S., & Yamanaka, M. (2008). Application of CAE in cold forging and heat treatment processes for manufacturing of precision helical gear part. Journal of Materials Processing Technology, 201, 25–31. https://doi.org/10.1016/j.jmatprotec.2007.11.219
DOI: https://doi.org/10.1016/j.jmatprotec.2007.11.219   Google Scholar

Liekmeier, F. (1992). Hot extrusion of twist drill. Umformtechnik, 26, 181.
  Google Scholar

Download


Published
2017-09-30

Cited by

BULZAK, T. ., PATER, Z., & TOMCZAK, J. (2017). NEW EXTRUSION PROCESS FOR PRODUCING TWIST DRILLS USING SPLIT DIES. Applied Computer Science, 13(3), 55–63. https://doi.org/10.23743/acs-2017-21

Authors

Tomasz BULZAK 
t.bulzak@pollub.pl
Lublin University of Technology, Nadbystrzycka Street 36, 20-618 Lublin Poland

Authors

Zbigniew PATER 

Lublin University of Technology, Nadbystrzycka Street 36, 20-618 Lublin Poland

Authors

Janusz TOMCZAK 

Lublin University of Technology, Nadbystrzycka Street 36, 20-618 Lublin Poland

Statistics

Abstract views: 92
PDF downloads: 4


License

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

All articles published in Applied Computer Science are open-access and distributed under the terms of the Creative Commons Attribution 4.0 International License.


Similar Articles

1 2 3 > >> 

You may also start an advanced similarity search for this article.