Publication detail

Characterization of High-Speed Alumina Abrasive Grinding Wheel

PAVLOUŠKOVÁ, Z. JECH, D. KOMAROV, P. ROČŇÁKOVÁ, I. DYČKOVÁ, L. REMEŠOVÁ, M. ČELKO, L. HOLEMÝ, D.

Original Title

Characterization of High-Speed Alumina Abrasive Grinding Wheel

English Title

Characterization of High-Speed Alumina Abrasive Grinding Wheel

Type

conference paper

Language

en

Original Abstract

The high-speed grinding wheel can be defined as a self-sharpening composite structural tool composed from abrasive grains held in a specific binder. The main properties of grinding wheels depend on the type of abrasive elements, grit size, grade, binder and the resulting structure, which is influenced by several crucial technological processing steps. Preparation of an initial mixture of abrasive particles together with permanent binder’s mixture and temporary binder followed by pressing and high-temperature sintering is the essential technological step in the manufacturing of high-quality grinding wheels. High demands placed on functionality and quality together with constantly increasing effort to improve existing properties of grinding tools require detailed characterization of all input raw materials. For further research and development is crucial know, how each technological step can influence the final quality of the product. This contribution is focused on the characterization of four alumina abrasives with different grit size and two in chemical composition different binder mixtures which were used for the production of two different high-speed grinding wheels. Initial abrasive grains, binders and metallographic samples of highspeed grinding wheels were evaluated by means of scanning electron microscopy. The porosity of grinding wheels with different binding agents was also determined ustilizing digital image analysis technique.

English abstract

The high-speed grinding wheel can be defined as a self-sharpening composite structural tool composed from abrasive grains held in a specific binder. The main properties of grinding wheels depend on the type of abrasive elements, grit size, grade, binder and the resulting structure, which is influenced by several crucial technological processing steps. Preparation of an initial mixture of abrasive particles together with permanent binder’s mixture and temporary binder followed by pressing and high-temperature sintering is the essential technological step in the manufacturing of high-quality grinding wheels. High demands placed on functionality and quality together with constantly increasing effort to improve existing properties of grinding tools require detailed characterization of all input raw materials. For further research and development is crucial know, how each technological step can influence the final quality of the product. This contribution is focused on the characterization of four alumina abrasives with different grit size and two in chemical composition different binder mixtures which were used for the production of two different high-speed grinding wheels. Initial abrasive grains, binders and metallographic samples of highspeed grinding wheels were evaluated by means of scanning electron microscopy. The porosity of grinding wheels with different binding agents was also determined ustilizing digital image analysis technique.

Keywords

Grinding wheel; Abrasive; Binder; Microstructure; Porosity

Released

16.11.2020

Publisher

Trans Tech Publications Ltd

Location

Switzerland

ISBN

1662-9507

Periodical

Defect and Diffusion Forum

Year of study

45

State

CH

Pages from

365

Pages to

369

Pages count

5

URL

Documents

BibTex


@inproceedings{BUT166034,
  author="Zina {Pavloušková} and David {Jech} and Pavel {Komarov} and Ivana {Ročňáková} and Lucie {Dyčková} and Michaela {Remešová} and Ladislav {Čelko} and Daniel {Holemý}",
  title="Characterization of High-Speed Alumina Abrasive Grinding Wheel",
  annote="The high-speed grinding wheel can be defined as a self-sharpening composite structural
tool composed from abrasive grains held in a specific binder. The main properties of grinding wheels depend on the type of abrasive elements, grit size, grade, binder and the resulting structure, which is influenced by several crucial technological processing steps. Preparation of an initial mixture of abrasive particles together with permanent binder’s mixture and temporary binder followed by pressing and high-temperature sintering is the essential technological step in the manufacturing of high-quality grinding wheels. High demands placed on functionality and quality together with constantly increasing effort to improve existing properties of grinding tools require detailed characterization of all input raw materials. For further research and development is crucial know, how each technological step can influence the final quality of the product. This contribution is focused on the characterization of four alumina abrasives with different grit size and two in
chemical composition different binder mixtures which were used for the production of two different high-speed grinding wheels. Initial abrasive grains, binders and metallographic samples of highspeed grinding wheels were evaluated by means of scanning electron microscopy. The porosity of grinding wheels with different binding agents was also determined ustilizing digital image analysis technique.",
  address="Trans Tech Publications Ltd",
  booktitle="Metallography & Fractography 2019",
  chapter="166034",
  doi="10.4028/www.scientific.net/DDF.405.365",
  howpublished="online",
  institution="Trans Tech Publications Ltd",
  year="2020",
  month="november",
  pages="365--369",
  publisher="Trans Tech Publications Ltd",
  type="conference paper"
}