Abstract

A friction test rig has been developed to carry out repeated sliding friction tests for premium tubular connections. The test rig enables accurate measurement of friction in various contact regimes which are relevant to the threaded connections between tubular components. Higher load tests can simulate the contact in metal-to-metal seals under very high contact pressures by using perpendicular pin-on-pin tests. The contact in the thread loading flank under intermediate pressures can be simulated by using larger radius coupon-on-coupon tests. The measured coefficient of friction is well correlated with a lubrication parameter combining lubricant film thickness and initial surface roughness.

DOI

10.1016/j.triboint.2012.04.011

Publication Date

2012-09-01

Publication Title

TRIBOLOGY INTERNATIONAL

Volume

53

Publisher

Elsevier BV

ISSN

0301-679X

Embargo Period

2024-11-22

Keywords

Bead peening, Boundary lubrication, Friction, Tubular connection

First Page

159

Last Page

166

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