Investigation of burr formation on SUS304 stainless steel face milling
| Autor: | Chi-Lung Tsai, 蔡吉隆 |
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| Rok vydání: | 2010 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 98 The burrs will definitely appear in mechanical process. In order to avoid the problems caused by burrs, The above problems all indicate that the burrs must be removed during processing. Stainless steel has been widely used in our lives, because it has good tensile strength, fatigue strength, creep and other mechanical properties. Therefore, it is difficult to remove the burrs formed during mechanical process. In this thesis, 304 stainless steel is the main topic and the application of Taguchi method is used in face milling experiment. I select four factors as the cutting conditions: cutting speed, feed rate, depth of cut and exit angle. In addition, TM101 microscope is used to measure burrs height to acquire the optimal cutting parameters. The study result shows that the increase in cutting speed, depth of cut and the decrease in feed rate ultimately reduce the burrs height. However, exit angle has little effect on burrs height. We obtain the optimal machining parameters are: cutting speed : 900 rpm, feed rate : 0.16 mm/tooth, exit angle : 108°, depth of cut : 1.5 mm. Through actual cutting, I find that the optimal cutting parameters decrease the height of burrs in the initial research stage. Because of the tool wear, burr height is gradually increased. In other words, the tool wear is proportional to burr height. The results of errors between the actual cutting and the predicted value increase from 11.94% to 33.83%. In my conclusion, in order to achieve the goal of decreasing burr height, I suggest that suitable tools should be compatibly applied to different types of materials. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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