Overflow-assisted laser machining of titanium alloy: surface characteristics and temperature field modeling

บทความในวารสาร


ผู้เขียน/บรรณาธิการ


กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง


รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่งTangwarodomnukun V.

ผู้เผยแพร่Springer

ปีที่เผยแพร่ (ค.ศ.)2017

วารสารInternational Journal of Advanced Manufacturing Technology (0268-3768)

Volume number88

Issue number#

หน้าแรก147

หน้าสุดท้าย158

จำนวนหน้า12

นอก0268-3768

eISSN1433-3015

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84964328417&doi=10.1007%2fs00170-016-8728-8&partnerID=40&md5=50313a2320cc55f9aa9bae723812d340

ภาษาEnglish-Great Britain (EN-GB)


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บทคัดย่อ

Underwater laser machining process is a promising method to cut materials with less thermal damage. A variation of underwater technique is overflow-assisted laser ablation. This process can introduce a higher thermal convection and more uniform water layer than the typical underwater method. Such characteristics can encourage the damage-free fabrication and also stabilize the laser ablation in water. In this study, cut profile and temperature distribution of workpiece induced by the overflow technique were investigated. Titanium alloy (Ti-6Al-4V) used as a work sample was grooved by a nanosecond pulse laser under different overflow conditions. The effects of laser power, laser repetition rate, and water flow velocity were experimentally and numerically examined. A clean and smooth cut surface can be fabricated when the overflow technique was used. Microcracks and porosities found on the laser-ablated area were also addressed in this study. The temperature field of titanium alloy under the different ablation conditions was simulated by using the finite difference computation. The transient heat conduction model was implemented together with the enthalpy method and temperature-dependent material properties. By using the developed model, the groove depths obtained from the experiment and simulation were in a good agreement. ฉ 2016, Springer-Verlag London.


คำสำคัญ

AblationOverflow


อัพเดทล่าสุด 2023-25-09 ถึง 07:35