Investigation Of Surface Roughness Between The Conventional And Climb Milling For Aluminum Product

Yee , Jia Huea (2009) Investigation Of Surface Roughness Between The Conventional And Climb Milling For Aluminum Product. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This study has to be done i.n order to fulftll the requirement to complete the course in Degree in Manufacturing Engineering (Manufacturing Process). The main purpose of having this project is to investigate the difference of the surface roughness obtains between using conventional milling and climb mi11ing. This is because there are surveys that show a slightly different surface finish between conven6onal and climb milling. It is very important to use an appropriate method of milling to get a better surface finish. Besides, the project also will detennjne the best machining process characteristic that can obtain the best quality surface finish between the conventional and climb milling. The experiments arc carried out by using a CNC milling machine. The workpiece used is aluminum 6061. According to the acceptable ranges of cutting depth, cutting speed, and feed per tooth, the block was then milling by using the face mjJJing cutter. The stylus surface profiler was used to meru~ure the surface roughness. A number of 27 experiments arc canied out by conventional milliog method. The cxpe1imcnts arc carried out with combination of different parameter of cutting speed, feed rate, and depth of cut. The maximum value of the surface roughness obtain is 0.352um occurs at experiment no 3. The minimum value of the surface roughness obtain is 0. 138um occurs at experiment no 16. There arc another 27 experiments arc carried out by climb milling method. The maximum value of the surface roughness obtain is 0.350um occurs at experiment no 12. The minimum value of the surface roughness obtain is 0.1 tOum occurs at experiment no 25. The surface roughness obtain are better with climb milling than the conventional milling. The experiments show that the higher the cutting speed and the ]ower the FPT, the surface roughness obtained will be better. Key word: Conventional milling, Climb milling, Aluminum.

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