RESEARCH OF PROCESS OF WEAR OF KNIVES IS FORCUTTING OF WIRE

Authors

  • Ю. П. Бородій National Technical University of Ukraine «Kyiv Polytechnic Institute», Kyiv, Ukraine

DOI:

https://doi.org/10.20535/2305-9001.2014.70.35231

Keywords:

knives, cutting of wire, cutting edges, superficial strengthening, burr, fractography researches

Abstract

Purpose. For research of features of process of wear, description of mechanisms of wear, determination of parameters of process of wear it is important to undertake a fractography study of knives for cutting of wire. The aim of the article is generalization of results of fractography and x-ray photography structural researches of knives for cutting of wire, that is made from different materials, superficially fortified in number of different ways and worked the determined amount of cycles.

Design/methodology/approach. Cutting of wire diameter a 1 mm took place in a stamp-automat that has overhead movable and lower immobile knives. For research of features of process of wear, description of mechanisms of wear, determination of parameters of process of wear fractography studies of knives were undertaken. There were investigational standards with different strengthening superficial treatment.

Findings. The got dependences of height and area of zone of wear are on the absolute value of burr at the different types of strengthening treatment of cutting edges of knives. The got dependences  of specific height and specific area of zone of wear are on the mean value of hardness of knives the cutting edges of that are fortified by the different types of the combined treatment.

Originality/value.  Job performances it maybe to apply for research of features of process of wear, description of mechanisms of wear, determination of parameters of process of wear of cutting edges with different strengthening treatment.

Author Biography

Ю. П. Бородій, National Technical University of Ukraine «Kyiv Polytechnic Institute», Kyiv

 к.т.н, доц.

References

Makovei V.A., Borodiy Y.P. Influence of the superficial strengthening is on character of wear of cutting edges. Journal of Mechanical Engineering of the National Technical University of Ukraine “Kyiv Politechnic Institute”, 2007, no 50, pp. 111-117.

Makovei V.A., Borodiy Y.P., Kurikhin V.S. Forming and research of the combined wearproof coverages on the cutting edges of stamps and on the details of machines. Journal of Mechanical Engineering of the National Technical University of Ukraine “Kyiv Politechnic Institute”, 2009, no 55, pp. 256-264.

Borodiy Y.P. Increase of firmness of cutting elements of dividing stamps to the superficial strengthening. Journal of Mechanical Engineering of the National Technical University of Ukraine “Kyiv Politechnic Institute”, 2010, no 60, pp. 60-63.

Borodiy Y.P. Increase of firmness of dividing stamps to the combined superficial strengthening: Dissertation on the receipt of scientific degree of candidate of engineering sciences after speciality 05.03.05. Kyiv. 2013.

Published

2014-12-22

Issue

Section

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