Electrochemical machining process
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face; and a rear face of corrosion- resistant material. COAnNG PROCISS u.s. Patent 5,879,532. Mar. 9, 1999 D. Foster et ai., assignors to Masco Corp. of Indiana, IndianapoLis A process of depositing a multi- layer coating containing metal or metal alloy on at least a portion of an article surface comprising de- positing by electroplating at least one electroplated metal or metal alloy layer on at least a portion of the article surface to form an elec- troplated article; subjecting the electroplating article to pulse blow drying; and depositing by va- por deposition at least one layer selected from the group consisting of refractory metal and refractory metal alloy and at least one layer selected from the group consisting of refractory metal compound and refractory metal alloy compound. ILECTIIOCIIIMICAL MACHINING PROCISS U.S. Patent 5,879,533. Mar. 9, 1999 F.P. WardLe. assignor to SKF IndustriaL Trading & DeveLopment Co. B. V., Nieuwegein, NetherLands A method of electrochemically machining a metal piece, wherein by applying a voltage a current is passed across a narrow gap formed by the metal piece and an adjustable electrode means to lo- cally remove material from the metal piece, electrolyte being sup- plied to the gap in a direction sub- stantially tangential to the sur- face of the metal piece, and the metal piece being rotated around its axis, the amount of current being under the control of a means capable of sensing the sur- face of the metal piece, character- ized in that the metal piece is a bearing ring and wherein the electrochemical local removal of material from the bearing ring is enhanced by controlling a param- eter chosen from the group of changing the speed with which the bearing ring is rotated, and increasing the voltage when the gap is narrow due to a local eleva- tion on the bearing ring. MRIIOD. acov_... DTIIACTAJIT u.s. Patent 5,879,556. Mar. 9. 1999 ION EXCHANGE SYSTEMS FOR WASTEWATER TREATMENT Wirh our wasrewarer ion exchange recovery and reuse sysrems your compliance problems can be eliminared. USFilrer's Indusrrial Wasrewarer Sysrems group offers cwo ion exchange producrs mar allow you ro consisrencly meer me growing demands of any mew finishing or primed circuir board shop. The Selecrive Ion Exchange Sysrem consisrendy meers low discharge limirs for key roxic merals. The Rinsewarer Maimenance Sysrem removes rinsewarer conraminanrs and provides high quality warer for reuse. Conracr Industrial Wasrewarer Sysrems ar 800.525.0658 or 724.n2.0044 pho1U. 724.n2. 1360 fax. USFilte, Ttzling C4" world's W41n: Circle 063 on reader information card December 1999 75
Transcript of Electrochemical machining process
face; and a rear face of corrosionresistant material.
COAnNG PROCISSu.s. Patent 5,879,532. Mar. 9, 1999D. Foster et ai., assignors to MascoCorp. of Indiana, IndianapoLis
A process of depositing a multilayer coating containing metal ormetal alloy on at least a portion ofan article surface comprising depositing by electroplating at leastone electroplated metal or metalalloy layer on at least a portion ofthe article surface to form an electroplated article; subjecting theelectroplating article to pulseblow drying; and depositing by vapor deposition at least one layerselected from the group consistingof refractory metal and refractory
metal alloy and at least one layerselected from the group consistingof refractory metal compound andrefractory metal alloy compound.
ILECTIIOCIIIMICAL MACHININGPROCISSU.S. Patent 5,879,533. Mar. 9, 1999F.P. WardLe. assignor to SKFIndustriaL Trading & DeveLopmentCo. B. V., Nieuwegein, NetherLands
A method of electrochemicallymachining a metal piece, whereinby applying a voltage a current ispassed across a narrow gapformed by the metal piece and anadjustable electrode means to locally remove material from themetal piece, electrolyte being supplied to the gap in a direction substantially tangential to the sur-
face of the metal piece, and themetal piece being rotated aroundits axis, the amount of currentbeing under the control of ameans capable of sensing the surface of the metal piece, characterized in that the metal piece is abearing ring and wherein theelectrochemical local removal ofmaterial from the bearing ring isenhanced by controlling a parameter chosen from the group ofchanging the speed with whichthe bearing ring is rotated, andincreasing the voltage when thegap is narrow due to a local elevation on the bearing ring.
MRIIOD. acov_...DTIIACTAJITu.s. Patent 5,879,556. Mar. 9. 1999
ION EXCHANGE SYSTEMS FOR
WASTEWATER TREATMENTWirh our wasrewarer ion exchange recovery and reuse
sysrems your compliance problems can be eliminared.
USFilrer's Indusrrial Wasrewarer Sysrems group offers cwo
ion exchange producrs mar allow you ro consisrencly
meer me growing demands of any mew finishing or
primed circuir board shop. The Selecrive Ion Exchange
Sysrem consisrendy meers low discharge limirs for key
roxic merals. The Rinsewarer Maimenance Sysrem removes
rinsewarer conraminanrs and provides high quality warer
for reuse. Conracr Industrial Wasrewarer Sysrems ar
800.525.0658 or 724.n2.0044 pho1U. 724.n2. 1360 fax.
USFilte,Ttzling C4" oflh~ world's W41n:
Circle 063 on reader information card
December 1999 75
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