Stability of material adhered to the cutting edge in metal cutting

2014 Fiscal Year Final Research Report

• Project/Area Number: 24560133
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Production engineering/Processing studies
• Research Institution: Hiroshima University
• Principal Investigator: SEKIYA Katsuhiko 広島大学, 工学(系)研究科(研究院), 助教 (80226662)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 凝着 / 構成刃先 / 切削工具

Outline of Final Research Achievements

The behavior of the material adhered to the cutting edge of inserts was evaluated based on the comparison of the profiles of the surfaces machined in turning with the shapes and sizes of the inserts. The turning tests of an austenitic stainless steel SUS304, a titanium alloy Ti6Al4V, and a Ni based super alloy were conducted. The behavior of the adhered material was more stable than we expected. The adhered layer near the cutting edge was very stable, while the growth or breakage of the adhered material happened on the surface of the stable layer. This unstable layer was responsible for the deterioration of surface finish. The thicker the unstable layer is, the higher the surface roughness is. The adhered layer did not vanish even in high cutting speed.

Free Research Field

切削加工