How To Use Diamond Tool To Cut Steel In Micro Machining?Learn Science on mps-science.com. How To Use Diamond Tool To Cut Steel In Micro Machining? article will help answer your questions on Science.We at mps-science.com specialize in Science. Science at mps-science.com provides the most up to date news and articles. If you have questions please do not hesitate to contact us.
Micro-machining using diamond tool could be performed at high speeds and generally fine speeds to produce good surface finish such as mirror surfaces and high dimensional accuracy in non-ferrous alloys and abrasive non-metallic materials. However, if a diamond tool were to be used to cut steel, one of the most common engineering materials used in industries, the diamond tool will face severe tool wear. For example, a single crystal diamond tool with feedrate 5 micron/revolution, cutting speed zero to 5m/min and depth of cut 10 micron was attached to a ultrasonic vibration generator so that the diamond tool tip vibrated about 4 microns while it was used to cut stainless steel. Article: The diamond tool is familiarly used in micro-machining as it can withstand the micro hardening of the workpiece surface during micro-machining. This micro-hardening creates enough resistance to have currency the tool bit easily in micro milling, but not a diamond tool. Micro-machining using diamond tool could be performed at high speeds and generally fine speeds to produce good surface finish such as mirror surfaces and high dimensional right in non-ferrous alloys and sandpaper non-metallic materials. However, if a diamond tool were to be used to cut steel, one of the most commoners engineering materials used in industries, the diamond tool will face severe tool wear. While diamond only softens at 1350 degree Celsius and melts at 3027 degree Celsius, and is also the hardest material in the world, it has a weakness. Diamond succumbs to graphitization, which means that it will run its crystal structure to graphite crystal structure at 200 degree Celsius in the presence of a incendiary metal such as transcript steel and alloys with titanium, nickel and cobalt. There have been various attempts to improve the tool life of the diamond tool while cutting steel so as to improve the efficiency and profitability of this operation. Such processes include micro-cutting the steel workpiece in a carbon-rich gas privy council as well as a cryongenically cooled chamber. However, these methods require costly equipment modification and restrict direct supervision of the micro-cutting process. The latest preamble came when the diamond tool was subject to ultrasonic vibration during micro-cutting. It has been shown that a diamond tool subject to ultrasonic vibration can cut the steel well enough to produce a mirror surface finish with OK tool life. The ultrasonic vibration at the diamond tool tip allows the tool face to cool down considerably during the cutting process and delays the dimer reaction betwixt and between the diamond tool and the steel workpiece. As a result, the diamond tool life is increased by a few hundred times. For example, a single crystal diamond tool with feedrate 5 micron/revolution, cutting speed zero to 5m/min and depth of cut 10 micron was fast to a ultrasonic vibration generator so that the diamond tool tip vibrated hereabout 4 microns while it was used to cut stainless steel. The mirror surface finish of the cut steel surface was measured at 8 nm Ra! With more and more machining companies moving into the niche micro machining field, such ultrasonic vibration assisted cutting can only help the progressive sidekick to find process leadership and innovative differentiation.
Author Ken Yap is a director of Suwa Precision Engineering Pte Ltd in Singapore and represents metal stamping, precision machining, miniature precision male organs and PCB manufacturers from Suwa, also styled 'The Oriental Switzerland' in Japan due to its Swiss resemblance for rich watch-making industry, its mountainous terrain and its precision component making industry. |
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