How to Machine Magnesium 493
De BISAWiki
Magnesium computers to buy online has been utilized in manufacturing notebook computer frames, video cameras, electronic cameras, PDAs and other consumer electronics products because of its high strength-to weight ratio. When magnesium is alloyed with aluminum, the resulting material is very light and powerful, and easily machinable.
The principle issue in machining magnesium metal is the risk of fire ignition when dry cutting. Fire may occur once the melting point of the metal (400-600 degrees Celsius) is exceeded throughout machining. The small chips and fine dust generated during cutting will also be highly flammable and create a serious fire risk if not properly handled.
There are lots of points to see when machining magnesium:
Firstly, make use of a lower cutting speed in comparison with cutting aluminum. The temperature increases by having an escalation in cutting speed and also smaller undeformed chip thickness. Quite simply, the more expensive the chips and the slower the machining speed, the lower the workpiece temperature will-be. Because of this reason, some companies have altered woodworking tools for machining magnesium to be able to obtain bigger chips and lower fire hazard.The cutting tools used should have relief and clearance angles which are sufficiently large to stop un-necessary cutting tool-workpiece friction, thus lowering the heat generated through the cutting process.
Minute, keep the machining center clear. Cleaning the machining centers regularly and saving the magnesium chips precisely are essential facets of machining magnesium. Keep a container of cast iron chips close by when machining magnesium, If fire occurs, smother the fire using the cast iron chips.
Thirdly, if coolants are essential for high speed machining, do not use water-based lubricants. Alternatively use a light mineral oil, or even a water-soluble cutting fluid including Castrol Hysol MG specially-formulated for machining magnesium. Some companies in Japan use semi-dry machining using a system.
The fourth point is to observe the temperature throughout machining. Tests were completed using thermocouples mounted to the workpiece to monitor the temperature during device. Dry cutting of magnesium metal thin walls was achieved using cutting velocity of 440m/min for roughing and 628m/min for fine finishing.
Inspite of the fire hazards, as competition from overseas low-cost production bases intensifies, and magnesium becomes increasingly utilized in electronics products and services, many machining work stores could very well find machining of magnesium a distinct segment worth pursuing.
