Comparative study on micro-milling machinability of titanium alloys prepared by different processes: Forging process, additive manufacturing process and heat-treatment process

Chen, Zhongwei; Wu, Xian; He, Linjiang; Jiang, Feng; Shen, Jianyun; Zhu, Laifa

doi:10.1016/j.precisioneng.2024.02.010

Cited by 6 publications

(1 citation statement)

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“…Tan et al studied the ultrasonic elliptical vibration-assisted cutting of selective laser melting (SLM) additively manufactured AlSi10Mg alloy and found it can suppress surface defects and improve surface quality [ 20 ]. Although many researchers have conducted extensive studies on the cutting machinability of various additively manufactured metal materials [ 21 , 22 , 23 ], there are few reports on the effect of the Si phase in additively manufactured aluminum alloy on micro-milling machinability in the existing literature.…”

Section: Introductionmentioning

confidence: 99%

Micro-Milling of Additively Manufactured Al-Si-Mg Aluminum Alloys

He,

Kang,

2024

Materials

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Additively manufactured aluminum alloy parts attract extensive applications in various felids. To study the machinability of additively manufactured aluminum alloys, micro-milling experiments were conducted on the additively manufactured AlSi7Mg and AlSi10Mg. By comparing the machinability of Al-Si-Mg aluminum alloys with different Si content, the results show that due to the higher hardness of the AlSi10Mg, the cutting forces are higher than the AlSi7Mg by about 11.8% on average. Due to the increased Si content in additively manufactured Al-Si-Mg aluminum alloys, the surface roughness of AlSi10Mg is 26.9% higher than AlSi7Mg on average. The burr morphology of additively manufactured aluminum alloys in micro-milling can be divided into fence shape and branch shape, which are, respectively, formed by the plastic lateral flow and unseparated chips. The up-milling edge exhibits a greater burr width than the down-milling edge. Due to the better plasticity of AlSi7Mg, the burr width of the down-milling edge is 28.1% larger, and the burr width of the up-milling edge is 10.1% larger than the AlSi10Mg. This research can provide a guideline for the post-machining of additively manufactured aluminum alloys.

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