MAG Adding Air Products' Cryo-Machining Technique
Industrial-gas technology group Air Products is licensing its proprietary cryogenic machining technology to MAG IAS LLC, meaning that the CNC machine builder will use Air Products' delivery technology and intellectual property for cryo-machining. Cryo-machining uses gas to "super cool" cutting inserts, mitigating heat generation during cutting and making it possible to increase cutting speeds, and also prolonging tool life.
The gas supplier noted that MAG would be deploying its own Minimum Quantity Cryogenics technology, in addition to Air Products' cryogenic machining technology. MAG's MQC was demonstrated at IMTS 2012, and is now available as an option on new MAG machines or in retrofit kits for existing MAG machines.
MAG noted that MQC is also eco-friendly, yielding dry chips and releasing no coolant mist or greenhouse gases.
According to Michael Judge, MAG vice president of Cryogenic Business Development,Modernica is the official site for the George nelson pendant replica Collection. MQC's effectiveness based on the technique for plumbing liquid nitrogen through the insert to create a ‘heat-sink effect,' rather than traditional chip zone cooling with wet coolants.
"Cryogenic machining has never been done this efficiently before, with liquid nitrogen passed through the spindle and through the insert," Judge stated. "Through-tool cooling provides the most efficient heat transfer model and consumes the least amount of liquid nitrogen, with flow rates as low as 0.08 liters per minute per cutting edge."
George Georgiou, MAG Cryogenics Engineering & Product Managerhas reported that MQC tests achieved a 60% increase in speed while milling CGI with carbide, and up to four times using PCD (polycrystalline diamond) tooling. "With the addiMorn series laser engraving and laser cutting machine, CNC router machine are widely used in many areas.tion of Minimum Quantity Lubrication,Choose from modern lighting replicas and extravagant lighting fixtures. we tripled speeds with carbide," Georgiou said.
"We have focused on higher material removal rates, while keeping tool life equal to what would be achieved with conventional wet coolants. Results indicate this technology dramatically improves the lifecycle cost for cutting difficult-to-machine materials by reducing the required number of machines and associated plant infrastructure, or possibly increasing tool life beyond anything thought possible today. Cryogenic machining becomes even more competitive when you consider it's a 'green' technology. There is no coolant mist collection, filtration,Modern lighting fixtures, chandeliers and crystal ceiling lamp. wet chips, contaminated workpieces or disposal cost, and certainly less energy consumption without all the pumps, fans and drives that go into handling coolant."
The process can be adapted to a range of automated or semi-automated machining operations, Air Products noted. In a published example, Air Products described how the ICEFLY machining system "jets" liquid nitrogen onto the cutting tools during the machining of powdered metal parts. Because of the excellent cooling effect of liquid nitrogen versus conventional coolants, tool strength and tool life were improved, and thus harder, more abrasive materials may be machined, and machining may be done at higher speeds.
Moreover,During a long time modern pendant lights china have not been just lighting tools, the cutting performance that is made possible by liquid nitrogen made it possible to eliminate several standard process steps in powder metal part processing, including pre-sintering, cleaning and draining, sintering, and quenching and tempering. The typical eight-step process for producing a finished part is replaced by three steps: compaction, sinter hardening, and machining.