GB970436A - Methods and apparatus for use in electrolytic machining - Google Patents
Methods and apparatus for use in electrolytic machiningInfo
- Publication number
- GB970436A GB970436A GB23643/62A GB2364362A GB970436A GB 970436 A GB970436 A GB 970436A GB 23643/62 A GB23643/62 A GB 23643/62A GB 2364362 A GB2364362 A GB 2364362A GB 970436 A GB970436 A GB 970436A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plating
- electrolyte
- cell
- cathodes
- workpiece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000003754 machining Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 title 1
- 239000003792 electrolyte Substances 0.000 abstract 5
- 229910052751 metal Inorganic materials 0.000 abstract 3
- 239000002184 metal Substances 0.000 abstract 3
- 238000007747 plating Methods 0.000 abstract 3
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 abstract 2
- 150000002739 metals Chemical class 0.000 abstract 2
- 239000000523 sample Substances 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 239000008139 complexing agent Substances 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 229910002804 graphite Inorganic materials 0.000 abstract 1
- 239000010439 graphite Substances 0.000 abstract 1
- 239000002198 insoluble material Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 230000007935 neutral effect Effects 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 239000001103 potassium chloride Substances 0.000 abstract 1
- 235000011164 potassium chloride Nutrition 0.000 abstract 1
- 229960002635 potassium citrate Drugs 0.000 abstract 1
- 239000001508 potassium citrate Substances 0.000 abstract 1
- QEEAPRPFLLJWCF-UHFFFAOYSA-K potassium citrate (anhydrous) Chemical compound [K+].[K+].[K+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O QEEAPRPFLLJWCF-UHFFFAOYSA-K 0.000 abstract 1
- 235000011082 potassium citrates Nutrition 0.000 abstract 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Inorganic materials [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 abstract 1
- 235000010333 potassium nitrate Nutrition 0.000 abstract 1
- 239000004323 potassium nitrate Substances 0.000 abstract 1
- LJCNRYVRMXRIQR-OLXYHTOASA-L potassium sodium L-tartrate Chemical compound [Na+].[K+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O LJCNRYVRMXRIQR-OLXYHTOASA-L 0.000 abstract 1
- 239000010802 sludge Substances 0.000 abstract 1
- 235000011006 sodium potassium tartrate Nutrition 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H3/00—Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte
- B23H3/10—Supply or regeneration of working media
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
<PICT:0970436/C6-C7/1> In the electrolytic machining of metals using a high flow rate of electrolyte and high current density between the workpiece and electrode, the electrolyte is regenerated and freed from dissolved metals by plating these out in an electrolytic cell in circuit with the electrolyte supply and withdrawal flow line. Insoluble materials may also be filtered off, or centrifuged. A suitable electrolyte, e.g. potassium chloride and nitrate with Rochelle salt and potassium citrate as complexing agent, is fed from a tank 26 by a pump 24 to the gap between the workpiece W and electrode 10, from which it flows down a pipe 29 to a plating-out cell 28, and then returns to the storage tank 26. The plating-out cell has mounted therein anodes alternating with cathodes of relatively large area compared with the workpiece/tool and by bringing the plating cell in the same electrical supply circuit as the electro-machining unit, the current supply to the latter is maintained constant. Voltage regulators and spacing of the anodes and cathodes in the plating cell also maintain this constant current. The cathodes may be circular rotating discs bearing against bar scrapers to remove the deposits. The graphite anodes may have a corrugated surface. Acid may be fed in from a tank 56, and flow is governed by a pH probe 53. Similarly the regenerated electrolyte flowing into the storage tank 26 is rendered neutral by addition of alkali also controlled by a pH probe. The solid deposited metal residues which may contain Fe, Cu, and Ni are removed as sludge in a centrifuge 66. U.S.A. Specification 3,058,895 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US117941A US3256165A (en) | 1961-06-19 | 1961-06-19 | Method and apparatus for use in electrolytic shaping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB970436A true GB970436A (en) | 1964-09-23 |
Family
ID=22375648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23643/62A Expired GB970436A (en) | 1961-06-19 | 1962-06-19 | Methods and apparatus for use in electrolytic machining |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3256165A (en) |
| CH (1) | CH389800A (en) |
| DE (1) | DE1421956A1 (en) |
| GB (1) | GB970436A (en) |
| NL (2) | NL132272C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2237818A (en) * | 1989-11-10 | 1991-05-15 | Kolbe & Co Hans | Apparatus for the electrolytic regeneration of etching solutions |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3406108A (en) * | 1965-04-28 | 1968-10-15 | Fmc Corp | Regeneration of spent ammonium persulfate etching solutions |
| JPS585997B2 (en) * | 1979-01-25 | 1983-02-02 | 株式会社井上ジャパックス研究所 | electroforming equipment |
| US5863394A (en) * | 1996-10-02 | 1999-01-26 | Xerox Corporation | Apparatus for electrodeposition |
| DE102007044091A1 (en) * | 2007-09-14 | 2009-03-19 | Extrude Hone Gmbh | Process and device for electrochemical machining |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1937179A (en) * | 1933-07-28 | 1933-11-28 | Weisberg & Greenwald Inc | Method of recovering silver |
| US2073621A (en) * | 1933-10-06 | 1937-03-16 | Jesse M Blaney | Method of removal of excess halides from photographic developing baths |
| US2526423A (en) * | 1947-04-10 | 1950-10-17 | Rudorff Dagobert William | Apparatus and method for cutting materials |
| NL71231C (en) * | 1948-04-22 | |||
| US2748071A (en) * | 1951-08-30 | 1956-05-29 | Technograph Printed Circuits L | Apparatus for regeneration of etching media |
| US3004910A (en) * | 1952-09-18 | 1961-10-17 | George F Keeleric | Apparatus for electrolytic cutting, shaping and grinding |
| FR1094660A (en) * | 1952-12-30 | 1955-05-23 | ||
| US3003942A (en) * | 1954-12-16 | 1961-10-10 | Hispeed Equipment Inc | Electrolytic cell for recovery of silver from spent photographic fixing baths |
| US2895814A (en) * | 1955-02-04 | 1959-07-21 | Turko Products Inc | Apparatus and method for removing metal from the surface of a metal object |
| US2964453A (en) * | 1957-10-28 | 1960-12-13 | Bell Telephone Labor Inc | Etching bath for copper and regeneration thereof |
| US3060114A (en) * | 1958-02-06 | 1962-10-23 | William J Barry | Apparatus for cutting and machining metals electrochemically |
| NL128731C (en) * | 1959-05-20 | |||
| NL125378C (en) * | 1959-11-27 |
-
0
- NL NL279896D patent/NL279896A/xx unknown
- NL NL132272D patent/NL132272C/xx active
-
1961
- 1961-06-19 US US117941A patent/US3256165A/en not_active Expired - Lifetime
-
1962
- 1962-06-18 CH CH735762A patent/CH389800A/en unknown
- 1962-06-19 DE DE19621421956 patent/DE1421956A1/en active Pending
- 1962-06-19 GB GB23643/62A patent/GB970436A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2237818A (en) * | 1989-11-10 | 1991-05-15 | Kolbe & Co Hans | Apparatus for the electrolytic regeneration of etching solutions |
Also Published As
| Publication number | Publication date |
|---|---|
| US3256165A (en) | 1966-06-14 |
| NL132272C (en) | |
| CH389800A (en) | 1965-03-31 |
| NL279896A (en) | |
| DE1421956A1 (en) | 1968-11-07 |
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