Product category:
Cutting lubricants, coolants, systems and treatment
News Release from: Engis (UK) | Subject: Megasonic Cooling system
Edited by the Manufacturingtalk Editorial
Team on 08 January 2004
Cooling nozzles boost grinding
performance
Cooling system reduces coolant consumption, increases stock removal efficiency, extends grinding wheel life and provides enhanced surface finish characteristics.
Engis has announced the launch of its new Megasonic Cooling system which reduces coolant consumption, increases stock removal efficiency, extends grinding wheel life and provides enhanced surface finish characteristics The new nozzles use the Megasonic Coolant method, invented by Professor Suzuki Kiyoshi, Nippon Institute of Technology, who presented papers on the topic at the recent International Symposium on Advances in Abrasive Technology (ISAAT) at the University of Bristol
This article was originally published on Manufacturingtalk on 8 Jan 2001 at 8.00am (UK)
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Efficient grinding operations require the supply of an adequate amount of grinding fluid to the grinding point, but the air barrier created by the rotating grinding wheel often reduces the amount of coolant actually reaching the cutting face.
The Megasonic Coolant method uses the extremely high acceleration produced by a vibration transducer of megahertz order placed in the nozzle, resulting in high mega sonic permeability and vibration acceleration to remove fine particles.
Grinding hard materials using superabrasive wheels can lead to considerable wheel-wear due to the accumulation of ground chips in the chip pockets of the wheel and the superabrasive grains falling out of the wheel surface.
Professor Suzuki has demonstrated that a Megasonic coolant system supplying coolant to the point of grind can improve performance significantly, due to the coolant reaching the grinding point, thus resulting in more effective cooling and lubrication.
Megasonic coolant systems can also be supplied with a sacrificial front nozzle, which is made of a relatively soft material, with an exit facing the grinding wheel.
The Megasonic method is particularly applicable to the grinding of very hard materials such as LCD glass edge polishing and super-hard metals and results in improved surface finish.
Research undertaken by Professor Suzuki and his team has demonstrated that coolant supplied by Megasonic Coolant Nozzles can improve the grinding ratio, surface quality and grinding efficiency while reducing coolant consumption.
In experiments using the Megasonic Floating Nozzle a reduction in wheel wear of up to 40% was observed, in addition to an increase in the grinding ratio of 2 times and an improvement in surface roughness of up to 30%.
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