INCREASING THE LIFETIME OF A COUPLE OF CUTTING BLADES FOR PIPE

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INCREASING THE LIFETIME OF A COUPLE OF CUTTING BLADES FOR PIPE

Journal Title: Tribologia - Year 2014, Vol 258, Issue 6

Abstract

This investigation seeks to increase the lifetime of a couple of cutting blades pipe. The average life of this pair of blades is about two working shifts, and these blades have fracture and wear problems, which result in line stoppage and bad cuts in the pipes. These blades are currently made of D2 steel (1.5% C, 12% Cr, 1% V), which is a strong but brittle steel, and the process is quite fast and is under severe impact conditions. Searching to increase the mechanical properties, such as toughness and impact resistance, the utilization of a cryogenic treatment (sub-zero) has been proposed. The investigated cryogenic treatment increases the wear resistance in steel D2 ten times and also presents good results in other investigated materials (S7, H13, M2, Cr8) applying different PVD coatings in which the lifetime increases to reach 200%. The tribological tests were done with the T-05 (block on ring) equipment designed by the Institute for Sustainable Technologies in Radom, Poland, to analyse the eroded volume for each specimen.

Authors and Affiliations

Alan QUINTERO GARZA, Marco T. VILLARREAL GARZA, Heber ARIAS HERNÁNDEZ, Zygmunt HADUCH-SUSKI

Keywords

STUDY OF THE MODULUS OF ELASTICITY AND THE MICROHARDNESS CHANGES OF NIKASIL COATINGS IN CYLINDER SLEEVES OF COMBUSTION ENGINES DUE TO WEAR

Coatings on surfaces of internal combustion engine elements are commonly used to protect against excessive wear. One of them, frequently applied on sleeve surface of motorcycle engines, is made of Nicasil alloy. As prese...

EP ID EP261364
DOI -
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