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http://dspace.unimap.edu.my:80/xmlui/handle/123456789/70032
Title: | Investigation of tool wear and chip formation on through hole drilling of mild steel |
Authors: | Nadiah, Ahmad Bistaman Muhamad Nasir, Murad |
Keywords: | Cutting tool Machining Mild steel |
Issue Date: | May-2016 |
Publisher: | Universiti Malaysia Perlis (UniMAP) |
Abstract: | Nowadays, the problem of cutting tool failures becomes important in manufacturing industries. After certain working time at production, tool wear occurs and cutting tool become dull and required a changing. This is because inaccurate selection parameters affect the cutting tool condition. In this study, the experiment was performed to investigate the tool wear occurs in through hole drilling process using various cutting speed in dry machining. Other than that, to study chip formation produce on lowest cutting speed at 7.54 m/min. This experiment was conduct using CNC milling machine with cutting speed 7.54, 8.48, 9.42 m/min and constant feedrate at 0.15 mm/rev. Moreover cutting tools 6 mm diameter was used to drill on AISI 1018 mild steel workpiece until tool wear criteria achieved 0.2 mm. For tool wear measurement, LEICA EZ4 Microscope was used to evaluate the flank wear and types of chip formation produce were examined using Scanning Electron Microscope (SEM). As a result, on 9.42 m/min cutting speed was recorded as rapid wear which produces 13 holes in 4.6 minutes while at low cutting speed, 7.54 m/min produce 29 holes in 11.6 minutes. For chip formation the thickness of chips for new tool is thicker than worn tool result as well as for width of the chip at cutting speed 7.54 m/min. Therefore, conclusion from this experiment, increasing of cutting speed will result in increase of tool wear that lead to many problem factors during the drilling process. |
Description: | Access is limited to UniMAP community. |
URI: | http://dspace.unimap.edu.my:80/xmlui/handle/123456789/70032 |
Appears in Collections: | School of Manufacturing Engineering (FYP) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Abstract,Acknowledgement.pdf | 351.81 kB | Adobe PDF | View/Open | |
Introduction.pdf | 128.21 kB | Adobe PDF | View/Open | |
Literature Review.pdf | 640.14 kB | Adobe PDF | View/Open | |
Methodology.pdf | 649.56 kB | Adobe PDF | View/Open | |
Results and Discussion.pdf | 807.8 kB | Adobe PDF | View/Open | |
Conclusion and Recommendation.pdf | 118.22 kB | Adobe PDF | View/Open | |
Refference and Appendics.pdf | 203.95 kB | Adobe PDF | View/Open |
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