238000005755 formation reaction Methods 0.000 claims description 2.230000015572 biosynthetic process Effects 0.000 claims description 2.229910052751 metal Inorganic materials 0.000 claims description 19.229910003460 diamond Inorganic materials 0.000 claims description 23.238000003672 processing method Methods 0.000 claims description 36. ![]() 238000003754 machining Methods 0.000 title claims description 10.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority to JP2012093307A priority Critical patent/JP5905320B2/en Priority to JP2012-093307 priority Application filed by Toshiba Machine Co Ltd filed Critical Toshiba Machine Co Ltd Publication of CN103372654A publication Critical patent/CN103372654A/en Status Pending legal-status Critical Current Links Original Assignee Toshiba Machine Co Ltd Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Inventor 岛贯隆 Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Pending Application number CN2013101311111A Other languages Chinese ( zh) Google Patents CN103372654A - Flycutting groove machining method and flycutting mirror finishing method on film-like workpiece I like to pop them out put a nice finish on the aluminum surface then pop them back in and take the prechambers down as close as i can to the aluminum surface without touching it with that wheel.CN103372654A - Flycutting groove machining method and flycutting mirror finishing method on film-like workpiece When milling the cutter reacts differently to the harder material and screws up your finish, especially if your auto feeding, when grinding you should be using a different wheel for the aluminum than the steel. I must enjoy the breeze from my zipper being down but have had no problems and had engine with my machined head go 300k and still climbing! Also as for machining with them in, frankly i wouldn't let you near my tools or machines! Iconel or stainless machine differently than aluminum. 0005 or less not flush but slightly protruding. ![]() Quote from: BigVWman on October 18, 2011, 09:36:14 am When i say they should protrude slightly i am thinking order of. Here is my hand abrasion setup, a bit crude, but fully functional and calibrated with newspaper to remove natural sag in 3 sheets of plate glass on bench: Machine minimal, but enough to allow contact round the cylinders, and not as I did as I watched the symetrical abrasion patterns emerging. Much warpage is in the surface, where it has turned to jelly and reset. Leave the manifolds on and tight if possible. Only when released from the block and removed from the intake and exhaust manifold does further shape changing take place. But my own opinion, is that with a failed head gasket, whilst still on the engine the warpage is in the interface and not carried through to the cam carriers. ![]() My hand-abraded head is clearly done with skilled arms, Dewarping a head is a complex issue. There can be no better holder of a precup that a purpose built aluminium home. If the tool is knocking them out then job is being rushed. Removing intact precups is just shoddy work skills that are inviting trouble. A head bolt or even stud is not capable of extruding the gasket in the metal regions. How can it seal on the stepped interface for either fiber or metal. ![]() Protruding precups are like walking around with your flies undone.
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