Consideration of SLM additive manufacturing supports on the stability of flexible structures in finish milling

TLDR: In this paper, the authors highlight the importance of additively manufactured support structures on the stability of Ti-6Al-4 V parts milling by using supports as a machining fixture.

About: This article is published in Journal of Manufacturing Processes.The article was published on 2021-02-01 and is currently open access. It has received 15 citations till now. The article focuses on the topics: Machining & Selective laser melting.

Figures

Table 1 - Average of the first modal frequency of each structure and dispersion

Figure 6 - Evolution of the average displacement amplitude and cutting force according to the first modal frequency

Table 2 - Summary of machining test results: displacement amplitude, cutting force, height difference between machined and rough surface and roughness Ra

Figure 3 - (a) Experimental procedure implemented, (b) Cutting schema of finishing pass and associated parameters and (c) Manufactured sample presenting the milling pass.

Figure 5 - Normal displacements, normal cutting force and surface topography for the Block structure (a) (b) (c), the Octettruss with a 0.375 diameter (d) (e) (f) and the Octet-truss with a 0.3 mm diameter structure (g) (h) (i) - Local scale

Figure 1 – Machining operation of an additive manufactured part with consideration of supports as a machining fixture.

Frequently asked questions

Q1. What contributions have the authors mentioned in the paper "Consideration of slm additive manufacturing supports on the stability of flexible structures in finish milling" ?

This study highlights the importance of additively manufactured support structures on the stability of Ti-6Al-4V parts milling by using supports as a machining fixture. The objective of this study is to show that the stiffness of the manufacturing supports is crucial for the machining operation. The study reveals that milling can induces chatters.