Cutting performance of an indexable insert drill for difficult-to-cut materials under supplied oil mist

• Published in: International journal of advanced manufacturing technology Vol. 72; no. 1-4; pp. 475 - 485
• Main Authors: Okada, Masato, Asakawa, Naoki, Sentoku, Eisuke, M’Saoubi, Rachid, Ueda, Takashi
• Format: Journal Article
• Language: English
• Published: London Springer London 01.04.2014; Springer Nature B.V
• Subjects: Abrasion; Abrasives; CAE) and Design; Carbon steel; Carbon steels; Computer-Aided Engineering (CAD; Cutting parameters; Cutting wear; Engineering; Flaking; Industrial and Production Engineering; Lubrication; Materials selection; Mechanical Engineering; Media Management; Nickel alloys; Nickel base alloys; Oil mist; Original Article; Stainless steel; Stainless steels; Surface roughness; Thrust; Titanium alloys; Titanium base alloys; Tool steels; Tool wear; Twist drills; Workpieces; Drilling; Minimum quantity lubrication; Difficult-to-cut materials; Indexable insert drill; Tool temperature; Tool wear
• ISSN: 0268-3768; 1433-3015
• DOI: 10.1007/s00170-014-5691-0

In this study, the cutting performance of an indexable insert drill with an asymmetric geometry for cutting difficult-to-cut materials was investigated. A solid twist drill with a symmetric geometry was used to compare the cutting characteristics. The cutting characteristics were evaluated using the thrust force, inner-surface roughness of the drilled hole, wear behavior, and tool temperature. Workpieces made of stainless steel, titanium alloy, and nickel-based alloy were selected as difficult-to-cut materials, and carbon steel was also selected. The tool temperature was higher in the order of carbon steel, stainless steel, titanium alloy, and nickel-based alloy for every drill under minimum quantity lubrication cutting. The influence of the workpiece material on the thrust force was different from that of the tool temperature for the indexable insert drill, whereas that of the solid twist drill was similar to the tool temperature tendency. When cutting the titanium alloy and nickel-based alloy, the tool temperature and thrust force of the indexable insert drill were lower than those of the solid-type twist drill. The inner-surface roughness of a hole drilled with the indexable insert drill had almost the same quality as that of a hole drilled with the solid-type twist drill when cutting the difficult-to-cut materials. The wear behavior of the indexable insert drill was remarkably different from that of the solid-type twist drill, and the flaking of the coating and the abrasion wear at the rake face were notable in the indexable insert drill.