IMPROVING OF SHEARING BLADES LIFE | Zendy

Zdenek Lidmila | Zendy; Kamil Podaný | Zendy; Jan Řiháček | Zendy

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IMPROVING OF SHEARING BLADES LIFE

Author(s) -

Zdenek Lidmila,

Kamil Podaný,

Jan Řiháček

Publication year - 2016

Publication title -

mm science journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.195

H-Index - 10

eISSN - 1805-0476

pISSN - 1803-1269

DOI - 10.17973/mmsj.2016_11_2016134

Subject(s) - shearing (physics) , structural engineering , materials science , geology , geotechnical engineering , engineering

In the paper, design and implementation of a method for increase of shearing blades life are described. Blades for shearing of a reinforcing grip bar are made of tool steel 55WCrV8 (19 733 according to Czech Standard). Plasma nitriding method, which allows higher surface hardness while maintaining a ductile core, was chosen as an optimal method increasing blades life. A scratch pattern and a hardness measurement of initial and modified samples confirmed improvement in blade surface hardness to a value of 64 HRC.

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