IJAT Vol.16 No.6 pp. 897-905
doi: 10.20965/ijat.2022.p0897


Cutting Force in Peripheral Milling of Additively Manufactured Maraging Steel

Shoichi Tamura*,†, Atsushi Ezura**, and Takashi Matsumura***

*Division of Mechanical Engineering, Ashikaga University
268-1 Omae, Ashikaga, Tochigi 326-8558, Japan

Corresponding author

**Faculty of Engineering, Sanjo City University, Sanjo, Japan

***Department of Mechanical Engineering, Tokyo Denki University, Tokyo, Japan

May 8, 2022
August 18, 2022
November 5, 2022
additive manufacturing, peripheral milling, cutting force, energy approach, shear stress on shear plane

Additively manufactured parts have recently been applied to products in aerospace, automobile, and tool industries in terms of design flexibility and material consumption with mechanical strength. Because the surfaces of additively manufactured parts are coarse, milling is conducted as a post-process to achieve fine surfaces within the specified tolerance. However, the microstructures and the mechanical properties of additively manufactured metals differ from those of wrought metals. Therefore, the cutting characteristics should be understood to determine the appropriate cutting parameters. The paper studies the cutting process in peripheral milling of additively manufactured maraging steel in a cutting model. The cutting force, the surface finish, the chip morphology, and the tool wear were evaluated through cutting tests. Although the hardness of the additively manufactured workpiece was higher than that of the wrought workpiece, the maximum cutting forces were approximately the same. An energy-based force model was applied to discuss the cutting force characteristics in terms of the shear area and the shear stress on the shear plane. In milling of additively manufactured workpiece, the shear stress on the shear plane becomes larger than that of the wrought workpiece. However, the shear plane length is short at a large shear angle. Therefore, the cutting force does not significantly increase. The typical change in the cutting force of the additively manufactured workpiece is also compared with that of the wrought workpiece in terms of the cutting model. The chip flow directions, then, are analyzed in the cutting force model. The chips of the additively manufactured workpiece flow more in the radial direction than those of the wrought workpiece.

Cite this article as:
S. Tamura, A. Ezura, and T. Matsumura, “Cutting Force in Peripheral Milling of Additively Manufactured Maraging Steel,” Int. J. Automation Technol., Vol.16, No.6, pp. 897-905, 2022.
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Last updated on Nov. 24, 2022