Comparison of laboratory wear test results with the in-service performance of cutting edges of loader buckets

Kati Valtonen, Vilma Ratia, Niko Ojala, Veli-Tapani Kuokkala

    Research output: Contribution to journalArticleScientificpeer-review

    21 Citations (Scopus)
    406 Downloads (Pure)

    Abstract

    The in-service cutting edge of a mining loader bucket was investigated and its wear behavior compared with samples tested in the laboratory to assess how well the wear testing methods correlate with the in-service conditions. The examined in-service cutting edge of a bucket had been run in an underground mine with quarry gravel and it was made of wear resistant steel. The wear behavior of the cutting edge was simulated in the laboratory scale with several application oriented abrasive and impact-abrasive wear testing methods. In addition to the contact mode, high loads, large abrasive size, abrasive type, and the comminution of the abrasive formed the basis for the design of the laboratory experiments. The wear surfaces and cross-sections of the original cutting edge and the test samples were characterized, and the wear behaviors were compared with each other. Work hardening of the steels occurred in all cases, but the amount of plastic deformation and the depth of the wear scars varied.
    Original languageEnglish
    Pages (from-to)93-100
    JournalWear
    Volume388-389
    DOIs
    Publication statusPublished - 15 Oct 2017
    Publication typeA1 Journal article-refereed

    Keywords

    • Wear testing
    • Abrasion
    • Impact wear
    • Steel
    • Mining

    Publication forum classification

    • Publication forum level 1

    ASJC Scopus subject areas

    • General Materials Science
    • Metals and Alloys

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