RESEARCH OF THE PROCESS OF HOLE FORMATION WITH FORSTNER DRILLS

  • Leonid Devin V. N. Bakul Institute for Superhard Materials of National Academy of Sciences of Ukraine
  • Serhii Rychev V. N. Bakul Institute for Superhard Materials of National Academy of Sciences of Ukraine
  • Volodymyr Nechyporenko V. N. Bakul Institute for Superhard Materials of National Academy of Sciences of Ukraine
  • Oleksandr Gryazev V. N. Bakul Institute for Superhard Materials of National Academy of Sciences of Ukraine
  • Andrii Skrypnyk National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”
Keywords: drilling, Forstner drill, axial force P0, chipboard, Fed delamination criterion

Abstract

The paper analyzes the influence of the injection of the regimes of cutting and wear of the cut for the correction of defects in the chipboard opening when cutting with a Forstner drill. In the course of the study, the main stages of the formation of the hole in chipboard were determined, as well as the value of the axial force P0 at all defined stages of processing. To assess the quality of the hole, the dimensionless Fed layering criterion was determined. It was established that the wear of the drill plates leads to an increase in the average P0 and the maximum P0 max of the axial cutting force.

Published
2024-02-05
Issue
Vol 26 No 1 (2023): Tooling marerials science
Section
Development and implementation of equipment and tools equipped with hard alloys