Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Modeling of Force Build-up Process and Optimization of Tool Geometry when Intermittent Turning
Division of Production and Materials Engineering, Lund University, Lund, S-22100, Sweden.
University West, Department of Engineering Science, Division of Subtractive and Additive Manufacturing. SECO Tools AB, Björnbacksvägen 2, Fagersta, 73782, Sweden. (PTW)ORCID iD: 0000-0003-3876-2361
Division of Production and Materials Engineering, Lund University, Lund, S-22100, Sweden.
2017 (English)In: Procedia CIRP, ISSN 2212-8271, E-ISSN 2212-8271, Vol. 58, p. 393-398Article in journal (Refereed) Published
Abstract [en]

Intermittent turning the slotted workpieces is always accompanied with a high impact load of the machine tool during the entry phase of the cutting edge. The process leads to a strong dynamic response of the system and results in vibrations arose and potential tool life and surface finish issues. The present study addresses the modeling of cutting force build-up process with further optimization of cutting edge geometry where tooltip overshoot during the tool entry is selected as an objective function. The model takes into consideration the interaction between three units of the machine tool such as a tool, toolpost, and workpiece as well as an influence of the process on the system's dynamics.

Place, publisher, year, edition, pages
2017. Vol. 58, p. 393-398
Keywords [en]
Intermittent machining, force buid-up, optimization, cutting edge geometry, dynamic response
National Category
Manufacturing, Surface and Joining Technology
Research subject
Production Technology
Identifiers
URN: urn:nbn:se:hv:diva-12254DOI: 10.1016/j.procir.2017.03.241OAI: oai:DiVA.org:hv-12254DiVA, id: diva2:1198111
Conference
16th CIRP Conference on Modelling of Machining Operations (16th CIRP CMMO)
Available from: 2018-04-16 Created: 2018-04-16 Last updated: 2018-04-16Bibliographically approved
In thesis
1. Analysis of entry phase in intermittent machining
Open this publication in new window or tab >>Analysis of entry phase in intermittent machining
2018 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

Cutting forces and vibrations are essential parameters in the assessment of a cutting process. As the energy consumption in the machining process is directly affected by the magnitude of the cutting forces it is of vital importance to design cutting edges and select process conditions that will maintain high tool performance through reduced energy consumption. The vibrations are often the cause of poor results in terms of accuracy, low reliability due to sudden failures and bad environmental conditions caused by noise. The goal of this work is to find out how the cutting edge and cutting conditions affect the entry conditions of the machining operation. This is done utilizing experimental methods and appropriate theoretical approaches applied to the cutting forces and vibrations. The research was carried out through three main studies beginning with a force build-up analysis of the cutting edge entry into the workpiece in intermittent turning. This was followed by a second study, concentrated on modelling of the entry phase which has been explored through experiments and theory developed in the first study. The third part was focused on the influence of the radial depth of cut upon the entry of cutting edge into the workpiece in a face milling application. The methodology for the identification of unfavourable cutting conditions is also explained herein. Important insights into the force build-up process help addressing the correlation between the cutting geometries and the rise time of the cutting force. The influence of the nose radius for a given cutting tool and workpiece configuration during the initial entry is revealed. The critical angle i.e. the position of the face milling cutter that results in unfavourable entry conditions has been explained emphasizing the importance of the selection of cutting conditions. Finally, the theoretical methods utilized for the evaluation of the role of cutting edge geometry within entry phase dynamics has been explored. This has revealed the trends that are of interest for selection of cutting conditions and cutting edge design.

Place, publisher, year, edition, pages
Trollhättan: University West, 2018. p. 74
Series
Licentiate Thesis: University West ; 21
Keywords
Entry; Cutting force; Cutting edge geometry; Acceleration
National Category
Manufacturing, Surface and Joining Technology
Research subject
Production Technology
Identifiers
urn:nbn:se:hv:diva-12255 (URN)978-91-87531-80-4 (ISBN)978-91-87531-79-8 (ISBN)
Presentation
2018-04-19, 10:00 (English)
Supervisors
Available from: 2018-04-19 Created: 2018-04-16

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full text

Authority records BETA

Agic, Adnan

Search in DiVA

By author/editor
Agic, Adnan
By organisation
Division of Subtractive and Additive Manufacturing
In the same journal
Procedia CIRP
Manufacturing, Surface and Joining Technology

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 3 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf