Evaluation of superabrasive grinding points for the machining of hardened steel

Research output: Contribution to journalArticle

Colleges, School and Institutes

External organisations

  • Rolls Royce PLC

Abstract

Small diameter grinding points offer greater flexibility for machining free-form contours compared to traditional grinding wheels, despite fewer effective cutting edges. The paper evaluates the influence of grit size (B32, B46, B76), feed rate (125, 250 mm/min) and depth of cut (20, 40 μm) when machining D2 tool steel using electroplated CBN grinding points. Highest G-ratios (∼2441) were obtained using B32 tools with corresponding workpiece surface roughness (Ra) of ∼0.8 μm after ∼6000 mm 3 material removed, due to the greater number of effective cutting edges. Attritious wear was the primary wear mechanism although material loading was observed with B76 tools.

Details

Original languageEnglish
Pages (from-to)329-332
Number of pages4
JournalCIRP Annals
Volume68
Issue number1
Early online date2 Jul 2019
Publication statusPublished - 4 Jul 2019

Keywords

  • Cubic boron nitride (CBN), Grinding, Wear