Influence of Heat Treatments, Parameters and Machining Conditions on Machinability in the Turning of Recycled 6061 Aluminum Alloy

• Main Authors: Jean Brice Mandatsy Moungomo, Guy Richard Kibouka, Donatien Nganga-Kouya
• Format: Article
• Language: English
• Published: MDPI AG 2021-04-01
• Series: Journal of Manufacturing and Materials Processing
• Subjects: machinability; surface roughness; chips morphology; metal particle mass concentration; turning; lubrication
• Online Access: https://www.mdpi.com/2504-4494/5/2/37

Some manufacturing companies now use recycled aluminum alloys. It is important that they have the necessary data relating to the control of the machinability of these alloys. Thus, this study on the machinability in the turning of two recycled aluminum alloys by a 6061 R and 6061 R-T6 smelter was conducted. The aim of this study is to provide solutions to the problem posed, which is whether recycled aluminum alloys have good machinability skills, such as virgin aluminum alloys. To provide these solutions, the experimental designs were used to study the influence of cutting parameters and conditions (feed, cutting speed, lubrication) and material hardness on machinability characteristics (surface roughness, mass concentration of metal particles, and chip morphology). The results of this study show that the two alloys studied have good machinability. The feed, hardness and lubrication significantly influence the machinability of these two alloys. Predictive models to assess the machinability of these recycled alloys have been established.