Surface characteristics and machining performance of TiAlN-, TiN- and AlCrN-coated tungsten carbide drills

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Dumkum C., Jaritngam P., Tangwarodomnukun V.

ผู้เผยแพร่: SAGE Publications

ปีที่เผยแพร่ (ค.ศ.): 2019

วารสาร: Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture (0954-4054)

Volume number: 233

Issue number: 4

หน้าแรก: 1075

หน้าสุดท้าย: 1086

จำนวนหน้า: 12

นอก: 0954-4054

eISSN: 2041-2975

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85045051638&doi=10.1177%2f0954405418765307&partnerID=40&md5=c85fb5a18ca2988fc47b149b39749c22

ภาษา: English-Great Britain (EN-GB)

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บทคัดย่อ

This article presents a comprehensive analysis of surface characteristics and drilling performance of uncoated and coated tungsten carbide drills. The single- and double-layer coatings of TiN, TiAlN and AlCrN were examined in terms of surface roughness, microhardness and crack resistance. In addition, drilling torque and thrust force were experimentally measured and compared to the developed models based on the drilling mechanics and drill geometries. Tool wear and hole surface roughness were also considered to assess the machining performance of different coated tools. The results revealed that all coated drills can offer better cut surface quality, 28% lower cutting loads and longer tool life than the uncoated drills. Although AlCrN was found to be the hardest coating material among the others, it caused large wear on the cutting edges and poor surface roughness of produced holes. The lowest torque and thrust force were achievable using TiN-coated drill, while the use of TiAlN coating resulted in the lowest surface roughness and smallest tool wear. Furthermore, the drilling torque and thrust force model developed in this study were found to correspond to the experimental measures with the average error of 8.4%. The findings of this work could facilitate the selection of coating materials to advance the machining performance. ฉ IMechE 2018.

คำสำคัญ

carbide