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EFFECT OF NON-CONVENTIONAL CUTTING METHODS ON HOLE DEVIATION AND SURFACE INTEGRITY | ||
| DIYALA JOURNAL OF ENGINEERING SCIENCES | ||
| Article 7, Volume 2, Issue 2, 2009, Pages 45-66 PDF (0 K) | ||
| Author | ||
| MUSTAFA AHMED RAJAB | ||
| Abstract | ||
| The results as shown in electrical discharge drilling that surface roughness and metal removal rate increase when current value increases, as well as the results indicated clearly, that the drilling depth of electrical discharge was found to be efficient for deviation of hole dimension between upper and lower surface. Also the results as showed that the increase in the laser pulse energy over the used level has raised the hole diameter, depth and increased the hole taper. In addition to that the hole taper was affected by the laser energy, the focusing position and focal length of the lens used. However in hot machining , the tool wear decreases with increasing cutting speeds . The surface of the machined steels was found to improve with in piece work temperature. Also the results indicate that in hot machining , the tool wear increases in feed rate . It is possible too at any temperature the surface finish deteriorates with increase feed and depth of cutting. The results or this research also shows that the tool wear and surface roughness decrease with increasing piece work Temperature especially when it is compared with the machining at room temperature | ||
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