Performance evaluation of different carbide inserts in turning of newly developed Al‐12Si‐0.1Sr alloy


Bayraktar Ş., Hekimoğlu A. P.

MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK, vol.54, no.1, pp.120-128, 2023 (SCI-Expanded)

  • Publication Type: Article / Article
  • Volume: 54 Issue: 1
  • Publication Date: 2023
  • Doi Number: 10.1002/mawe.202200148
  • Journal Name: MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.120-128
  • Recep Tayyip Erdoğan University Affiliated: Yes

Abstract

An Al-12Si-0.1Sr alloy ingot was manufactured using a permanent mold casting technique. The microstructure and mechanical properties of this alloy were researched. Effects of different cutting conditions (cutting speed-V: 200 m/min, 300 m/min, and 400 m/min and feed rate-f: 0.05 mm/rev, 0.1 mm/rev, and 0.15 mm/rev) on the cutting force (F) and surface roughness (Ra) during machining using uncoated and physical vapor deposition- titanium aluminum nitride coated carbide inserts were also revealed. Microstructure of the alloys consists of α phase, intermetallic δ and Al4Sr phases, thin spherical eutectic, and irregular coarse-shaped primary silicon particles. Cutting force and surface roughness decreased with the increased cutting speed during turning with uncoated, and titanium aluminum nitride coated inserts while they increased feed rate. A built-up edge and built-up layer were formed in both cutting inserts. The built-up edge and built-up layer decreased with increasing cutting speed and increased feed rate. The cutting force, surface roughness, built-up edge, and built-up layer were lower in uncoated inserts compared to the titanium aluminum nitride coated inserts.