Failure Observation of 3D-Printed Thrust Bearing Specimens at Cross Section Observations in Dry Conditions

Abstract:

3D printing methods are developing and they have become popular recently. 3D printing can easily make complex and seamless parts, however, there are questions about their strength. In particular, the strength of the places where the lamination layer joins is important. We performed rolling contact fatigue (RCF) tests in dry conditions using 3D-printed bearing race and observed the fracture behavior and cracks. We found that the main crack is related to the stress moving direction.

• Periodical: Key Engineering Materials (Volume 777)
• Pages: 446-450
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.777.446
• Online since: August 2018
• Authors: Koshiro Mizobe*, Masahiro Inagaki, Katsuyuki Kida
• Keywords: 3D Printing, Polymer Bearings, Viscoelasticity

References

[1] H. Koike, K. Kida, K. Mizobe, X. Shi, S. Oyama, Y. Kashima, Wear of hybrid radial bearings (PEEK ring-PTFE retainer and alumina balls) under dry rolling contact, Tribology International, Vol. 90, (2015), pp.77-83.

DOI: 10.1016/j.triboint.2015.04.007

[2] K. Mizobe, T. Matsumura, Y. Kashima and K. Kida, Rolling Contact Fatigue Observation of Radial PPS Bearings under Dry Condition, Key Engineering Materials , Vol. 709, (2016), pp.197-201.

DOI: 10.4028/www.scientific.net/kem.703.197

[3] K. Mizobe, N. Fujimura, Y. Kashima and K. Kida, Effect of New Pocket Design on the Failure of Thrust UHMWPE Bearings in Dry Condition, Key Engineering Materials, Vol. 706, (2016), pp.192-196.

DOI: 10.4028/www.scientific.net/kem.703.192

[4] K. Mizobe, M. Inagaki and K. Kida, Observation of fracture behavior of 3-D printed specimens under rolling contact fatigue in water, MATEC web conferences, Vol. 130, (2017), page 09004.

DOI: 10.1051/matecconf/201713009004

[5] K. Friedrich, Lu Z, A. M. Hager, Overview on polymer composites for friction and wear application, Theoretical and Applied Fracture Mechanics,Vol. 19, No. 1, (1993), pp.1-11.

DOI: 10.1016/0167-8442(93)90029-b

[6] M. Harrass, K. Friedrich, A. A. Almajid, Tribological behavior of selected engineering polymers under rolling contact, Tribology International, Vol. 43, No. 3, (2010), pp.635-646.

DOI: 10.1016/j.triboint.2009.10.003

[7] T. Tsujimoto, Tapered roller bearing, U. S. Patent 7753593 B2, (2010).

[8] K. Takahashi, K. Kawamura, K. Yoshihiro, Y. Yamamori, Smith, W. Dave, Fuel cartridge for fuel cell and nozzle attachment for fuel cartridge, U. S. Patent 20100190092 A1, (2010).

[9] K. Mizobe, T. Honda, H. Koike, E. C. Santos, Y. Kashima and K. Kida, Relationship between load, rotation speed and, strength in all-PEEK and PEEK race-PTFE retainer hybrid polymer bearings under dry rolling contact fatigue, Advanced Materials Research , Vol.567, (2012).

DOI: 10.4028/www.scientific.net/amr.567.66

[10] K. Mizobe, T. Honda, H. Koike, E. C. Santos, Y. Kashima and K. Kida, Effect of thrust load and rotation speed on wear loss in PPS race – PTFE retainer hybrid polymer thrust bearings under dry contact, Advanced Materials Research, Vol. 566, (2012).

DOI: 10.4028/www.scientific.net/amr.566.157