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- Title
Influence of the Material Mechanical Properties on Cutting Surface Quality during Turning.
- Authors
Kang, Il-Seok; Lee, Tae-Ho
- Abstract
In cutting processing, the mechanical properties of the material are very important, and the optimal cutting conditions, depending on strength, hardness, and elongation, affect the quality of the machined surface. Therefore, this study was conducted to obtain optimized cutting conditions such as the tool depth of the cut, cutting speed, and feed rate, considering the mechanical properties of the material. AISI 1045 cold-drawn (CD) bars showed an average tensile strength of 695.31 MPa in the tensile test and an average value of 308.6 HV in the Vickers hardness measurement. AISI 1020 CD bars showed a 22.66% lower average tensile strength of 537.74 MPa and an average of 198.77 HV in the hardness measurement. Therefore, AISI 1020 showed a 32.62% higher elongation than AISI 1045. In the measurement results for surface roughness after cutting, different results were observed depending on the strength and elongation at a feed rate of 0.05 mm/rev. AISI 1045 exhibited the highest machining quality, with a surface roughness of approximately 0.374 µm at a cutting speed of 150 m/min, and the cutting depth was 0.4 mm at a feed rate of 0.05 mm/rev. Alternatively, AISI 1020, which had relatively low strength and hardness with high elongation, exhibited the highest machining quality with a roughness of 0.383 µm with similar cutting parameters as AISI 1045.
- Subjects
MECHANICAL behavior of materials; SURFACE properties; TENSILE tests; TENSILE strength; SURFACE roughness measurement; MACHINABILITY of metals; CUTTING (Materials)
- Publication
Processes, 2024, Vol 12, Issue 6, p1171
- ISSN
2227-9717
- Publication type
Article
- DOI
10.3390/pr12061171