Novel Environmentally Friendly Manufacturing Method for Micro-Textured Cutting Tools
- PDF / 3,249,735 Bytes
- 12 Pages / 595.276 x 790.866 pts Page_size
- 67 Downloads / 231 Views
Online ISSN 2198-0810 Print ISSN 2288-6206
REGULAR PAPER
Novel Environmentally Friendly Manufacturing Method for MicroTextured Cutting Tools Changping Li1,2 · Xinyi Qiu1,2 · Zhen Yu3 · Shujian Li1,2 · Pengnan Li1,2 · Qiulin Niu1,2 · Rendi Kurniawan3 · Tae Jo Ko1,2,3 Received: 4 September 2019 / Revised: 22 July 2020 / Accepted: 12 August 2020 © Korean Society for Precision Engineering 2020
Abstract Surface texturing on cutting tools has a great influence on reducing the friction force between tool and chip interfaces. In this study, a grinding method was developed to fabricate micro-groove textures on cutting tools using a special diamond grinding wheel on the tool rake face. A comparative experiment was done using a laser and other grinding method to fabricate micro-grooves. The developed grinding method does not produce harmful gases, it is environmentally friendly, and it fabricates groove textures with high efficiency and quality. Various micro-grooves with depths of 30–90 µm, groove pitches of 0.5–1 mm, and groove angles of 30–60o were made on the rake faces of non-coated end-mill tools using the developed grinding method. Milling experiments on aluminum alloy (Al6061-T6) and tool steel (SKD11) with non-water-soluble coolant were carried out using the textured tools, and the cutting force and tool wear were investigated. In most cases, the cutting force produced by the micro-grooved tools is significantly reduced. In addition, the wear resistance of the micro-groove cutting tool is better than that of a conventional cutting tool, and there is no chipping. Keywords Micro-textured cutting tool · Micro-grooved · Milling · Cutting force · Tool life
1 Introduction In cutting processes, friction at the tool–chip interface causes heat and plastic deformation in the work material and is a dominant factor that determines the machinability of the material. Many cooling methods have been considered to reduce the friction and cutting temperature. For example, recent techniques such as liquid nitrogen (LN2) cryogenic cooling have been applied in machining titanium alloys and * Zhen Yu [email protected] * Tae Jo Ko [email protected] 1
School of Mechanical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
2
Hunan Provincial Key Laboratory of High Efficiency and Precision Machining of Difficult‑to‑Cut Materials, Hunan University of Science and Technology, 411201 Xiangtan, China
3
School of Mechanical Engineering, Yeungnam University, 280 Daehak‑ro, Gyoungsan‑si, Gyeongsangbuk‑do 38541, Republic of Korea
Carbon Fiber Reinforced Polymer Composites (CFRP) [1, 2]. Dry ice has also been used as a coolant in a cutting process to improve tool life [3]. However, careless handling of LN2 and dry ice could lead to cold burns and asphyxiation. In addition, these methods do not significantly improve tool wear [4]. Surface texturing has been introduced to improve the tribological properties of contact surfaces and has been used in many applications, including bearings, seals, and piston ring a
Data Loading...
