Effect of progressive tool wear on the functional performance of micro milling process of injection molding tool

Ali Davoudinejad*, Dongya Li, Yang Zhang, Guido Tosello

*Corresponding author for this work

Research output: Contribution to journalConference articleResearchpeer-review

27 Downloads (Pure)

Abstract

In micro milling process, tool wear is one of the significant research area and tool behavior during machining is rather unpredictable. As tool wear progress, the cutting edge geometry change and leading to lower performance and failure of the machined surface integrity. This work investigate the influence of the progressive tool wear during micro end milling of a functional surface (micro ridges) on the injection molding tool with H13 tool steel material. In order to monitor the tool wear progress, five different TiAlN coated carbides micro end mills with 500 μm diameter were used to carry out the experiments in different cutting distances 64 cm to 320 cm. The chip formation, burr formation and surface quality in different tool wear conditions were evaluated. The burr form and size were affected by cutting edge wear and dissimilar results obtained at the end of cut. Moreover, the analysis of chip geometry in microscopic scale allows evaluating the chip morphology and cutting mechanisms in different tool wear conditions. The machined slots by the profile analysis and the surface quality of parts decreased as the tool wear growth. This work contribute to improved knowledge of cutting mechanisms with worn tools causing dissimilar material removal and surface integrity during machining process.

Original languageEnglish
JournalProcedia CIRP
Volume87
Pages (from-to)159-163
ISSN2212-8271
DOIs
Publication statusPublished - 2020
Event5th CIRP Conference on Surface Integrity (CSI 2020) - Mondragon Unibertsitatea, Mondragón, Spain
Duration: 1 Jun 20205 Jun 2020

Conference

Conference5th CIRP Conference on Surface Integrity (CSI 2020)
LocationMondragon Unibertsitatea
CountrySpain
CityMondragón
Period01/06/202005/06/2020

Keywords

  • Micomachining
  • Surface generation
  • Tool wear

Cite this