Results of an Experimental Research Concerning the Evaluation of Machinability by Drilling under Constant Feed Force

Vasile Manole, Laurentiu Slatineanu, Sergiu Constantin Olaru, Irina Beșliu, Pavel Iurea, António Gonçalves-Coelho

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The knowledge about machinability indices for distinct machining processes allows finding the most appropriate values of the relevant factors for definite machining operations. Several criteria can be used to characterize machinability, such as the tool wear, the magnitude of the cutting forces, the roughness of the machined surfaces, or the shape of the chips that are formed during the machining process. One of the methods for studying the machinability is based on the analysis of drilling operations that are made under constant feed force. A drill press is probably the most readily available device to implement an experimental setup for drilling machinability tests. In normal operation, however, the chip accumulation at the dead end of the machined hole has a detrimental impact on the results of machinability tests, so that an improved setup was designed. A two-level, full factorial experiment with three independent factors (the drilling tool diameter, the rotational speed of the spindle and the feed force) has proven the suitability of the new experimental setup. Using it, we could find a power-type empirical model that explains the impact of the input factors in the depth of a hole that is machined in a pre-defined time interval.
Original languageEnglish
Title of host publicationApplied Mechanics and Materials
PublisherTrans Tech Publications Ltd
Pages147-152
Volume809-810
DOIs
Publication statusPublished - 2015

Publication series

NameApplied Mechanics and Materials
PublisherTrans Tech Publications Ltd.
ISSN (Print)1660-9336

Keywords

  • Constant Force Feed
  • Drilling
  • Machinability

Fingerprint Dive into the research topics of 'Results of an Experimental Research Concerning the Evaluation of Machinability by Drilling under Constant Feed Force'. Together they form a unique fingerprint.

Cite this