Properties of Selected Additive Materials Used to Increase the Lifetime of Tools for Crushing Unwanted Growths Using Hardfacing by Welding Technology
Miroslava Ťavodová, Monika Vargová, Dana Stančeková, Anna Rudawska, Arkadiusz Gola
TL;DR
This paper studies how to extend the life of tools used in forestry by hardfacing them with specific welding materials.
Contribution
The study compares two hardfacing materials and shows UTP 690 outperforms OK WearTrode 55 in hardness and wear resistance.
Findings
UTP 690 achieved 3.1 times higher hardness than the base material 16MnCr5.
UTP 690 showed 1.14 times higher abrasive wear resistance than OK WearTrode 55.
Proper pre-treatment and material selection are critical for tool longevity in forestry.
Abstract
This article focuses on the possibilities of increasing the service life of tools for crushing unwanted growths. One way to increase their service life is to increase the hardness and resistance to abrasive wear of exposed surfaces of the tool, which are their face and back. At the same time, however, care must be taken to ensure that the shape and weight of the tool is not altered after the additive has been hardfaced on. Thus, the tool was first modified by removing the material by milling from the face and back. Subsequently, two surfacing materials, namely UTP 690 and OK WearTrode 55, were chosen and hardfaced by welding onto the pre-prepared surfaces. After hardfacing by welding, the tools were ground to their original shape and their weight was measured. Subsequently, the tool was sawn, and specimens were created for Rockwell hardness evaluation, material microstructure and for…
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Taxonomy
TopicsMetal Alloys Wear and Properties · Surface Treatment and Coatings · Advanced materials and composites