INVESTIGATION OF THE MACHINABILITY AND PROPERTIES OF CW509L BRASS ALLOY

Abstract

In this article, the machinability properties of CW509L lead-free brass alloy in machining were examined. The effects of 3 differents feed rates and 3 different cutting speeds on cutting forces, chip morphology, surface roughness, dimensional accuracy of the workpiece and built up edge parameters were investigated. The machinability of CW509L material was examined by considering the drilling process in this article. The full factorial experimental design method was used in the experimental methodology. The impacts of the variants in the experimental work on the results obtained were numerically demonstrated by using Regression and ANOVA methods. Thus, the effect of cutting parameters selected in a wide range on each output obtained has been systematically revealed. There is no systematic and comprehensive study in the previous research on the drilling process of CW509L brass alloy. With this study, solutions were found to the issues that may be coincided during machining with optimized machining parameters. Additionally, without the need to use additional elements in high weight ratios, The machinability of CW509L lead-free brass was examined using 5 different parameters

Keywords

• CW509L Lead Free Brass Material
• Machining
• cutting forces
• Surface Roughness
• Chip Morphology
• Dimensional Accuracy
• Built Up Edge
• ANOVA.

References

1. [1] Callcut, V. (1996). The Brass Properties&Applications. CDA Publication, 117.
2. [2] Zoghipour, N., Tascioglu, E., Celik, F. & Kaynak, Y. (2022). The Influence of Edge Radius and Lead Content on Machining Performance of Brass Alloys. Procedia CIRP,112, 274- 279.
3. [3] Nobel, C., Klocke, F., Lung, D. & Wolf, S. (2014). Machinability Enhancement of Lead-Free Brass Alloys. Procedia CIRP, 14, 95-100.
4. [4] Li, S., Kondoh, K., Imai, H. & Atsumi, H. (2014). Fabrication and properties of lead-free machinable brass with Ti additive by powder metallurgy. Powder Technology, 205, 242–249.
5. [5] Das, A. & Bajpai, V. (2023). Machinability Analysis of Lead-Free Brass in High Speed Micro Turning Using Minimum Quantity Lubrication. CIRP Journal of Manufacturing Science and Technology, 41, 180-195.
6. [6] Atsumi, H., Imai H., Li S., Kondoh K., Kousaka Y. & Kojima A. (2021). High-Strength, Lead-Free Machinable α–β Duplex Phase Brass Cu-40Zn–Cr–Fe–Sn–Bi Alloys. Materials Science and Engineering: A, 529, 275-281.
7. [7] Schultheiss F., Johansson D., Bushlya, V., Zhou J., Nilsson K. & Stahl J.E. (2017). Comparative Study on The Machinability of Lead-Free Brass. Journal of Cleaner Production, 149, 366-377.
8. [8] Toulfatzis, A.I., Pantazopoulos, G.A. & Paipetis, A.S. (2016). Microstructure and Properties of Lead- Free Brasses Using Post-Processing Heat Treatment Cycles. Materials Science and Technology, 32, 1771-1781.

9. [9] Sarbak. (2017). Technical Data Sheet: CW509L-CuZn40. Sarbak Metal A.Ş.
10. [10] Lazic´, Z.R. (2004). Design of Experiments in Chemical Engineering A Practical Guide. WILEY-VCH.
11. [11] Lin, Z.C. & Ho, CY. (2003). Analysis and Application of Grey Relation and ANOVA in Chemical–Mechanical Polishing Process Parameters. International Journal Advanced Manufacturing Technologies,21,10-14.
12. [12] Davis, J.R. (2001). Copper and Copper Alloys. ASM international.
13. [13] Toenshoff, H. K. & Denkena, B. (2013). Basics of Cutting and Abrasive Processes. Springer.
14. [14] Haddag, B., Atlati, S., Nouari, M. & Moufki, A. (2016). Dry Machining Aeronautical Aluminum Alloy AA2024-T351: Analysis of Cutting Forces, Chip Segmentation and Built-Up Edge Formation. Metals, 6, 197.