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A platform for research: civil engineering, architecture and urbanism
Study on the mechanism of AL2024-T351/Ti-6Al-4V laminated materials by ultrasonic vibration drilling
https://orcid.org/http://orcid.org/0000-0001-8808-6571
Conventional twist drills have problems such as large axial force, severe delamination, high temperature, and serious surface quality damage when drilling Al2024-T351/Ti-6Al-4V laminated materials. The main reason is that the low cutting performance of the drill bit in the conventional drilling (CD) process requires a higher axial force, and it also makes the drill bit wear serious. In order to solve these problems, special geometric tools are usually used for drilling and ultrasonic assisted drilling is added. This paper focuses on conventional drilling (CD) and ultrasonic-assisted drilling (UAD) drilling of multipoint drilling tools. The biggest difference between UAD and CD is that it exerts a certain frequency and amplitude vibration on the drill bit, which can make the drill bit go down with periodic axial vibration. Since the drilling motion curve is microscopically a sine curve, the breaking and removal of chips are accelerated during the drilling process, which is beneficial to improve the machining accuracy. Under the ideal experimental conditions, the drilling of laminated materials was explored through a combination of experiment and simulation. Experiments show that the use of geometric tools can improve the defects caused by twist drill processing, while the use of UAD can further improve the problems of large axial force, serious delamination, high temperature and serious surface quality damage. The tool wear is reduced and the hole surface accuracy is improved.
Study on the mechanism of AL2024-T351/Ti-6Al-4V laminated materials by ultrasonic vibration drilling
https://orcid.org/http://orcid.org/0000-0001-8808-6571
Conventional twist drills have problems such as large axial force, severe delamination, high temperature, and serious surface quality damage when drilling Al2024-T351/Ti-6Al-4V laminated materials. The main reason is that the low cutting performance of the drill bit in the conventional drilling (CD) process requires a higher axial force, and it also makes the drill bit wear serious. In order to solve these problems, special geometric tools are usually used for drilling and ultrasonic assisted drilling is added. This paper focuses on conventional drilling (CD) and ultrasonic-assisted drilling (UAD) drilling of multipoint drilling tools. The biggest difference between UAD and CD is that it exerts a certain frequency and amplitude vibration on the drill bit, which can make the drill bit go down with periodic axial vibration. Since the drilling motion curve is microscopically a sine curve, the breaking and removal of chips are accelerated during the drilling process, which is beneficial to improve the machining accuracy. Under the ideal experimental conditions, the drilling of laminated materials was explored through a combination of experiment and simulation. Experiments show that the use of geometric tools can improve the defects caused by twist drill processing, while the use of UAD can further improve the problems of large axial force, serious delamination, high temperature and serious surface quality damage. The tool wear is reduced and the hole surface accuracy is improved.
Study on the mechanism of AL2024-T351/Ti-6Al-4V laminated materials by ultrasonic vibration drilling
https://orcid.org/http://orcid.org/0000-0001-8808-6571
Conventional twist drills have problems such as large axial force, severe delamination, high temperature, and serious surface quality damage when drilling Al2024-T351/Ti-6Al-4V laminated materials. The main reason is that the low cutting performance of the drill bit in the conventional drilling (CD) process requires a higher axial force, and it also makes the drill bit wear serious. In order to solve these problems, special geometric tools are usually used for drilling and ultrasonic assisted drilling is added. This paper focuses on conventional drilling (CD) and ultrasonic-assisted drilling (UAD) drilling of multipoint drilling tools. The biggest difference between UAD and CD is that it exerts a certain frequency and amplitude vibration on the drill bit, which can make the drill bit go down with periodic axial vibration. Since the drilling motion curve is microscopically a sine curve, the breaking and removal of chips are accelerated during the drilling process, which is beneficial to improve the machining accuracy. Under the ideal experimental conditions, the drilling of laminated materials was explored through a combination of experiment and simulation. Experiments show that the use of geometric tools can improve the defects caused by twist drill processing, while the use of UAD can further improve the problems of large axial force, serious delamination, high temperature and serious surface quality damage. The tool wear is reduced and the hole surface accuracy is improved.
Study on the mechanism of AL2024-T351/Ti-6Al-4V laminated materials by ultrasonic vibration drilling
Archiv.Civ.Mech.Eng
Wu, Shujing (author) / Wei, Lei (author) / Guo, Guoqiang (author) / Zhang, Shuqiao (author) / Li, Changhe (author) / Chen, Ming (author) / Wang, Dazhong (author)
2022-07-12
Article (Journal)
Electronic Resource
English
Study on the mechanism of AL2024-T351/Ti-6Al-4V laminated materials by ultrasonic vibration drilling
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