GB1096411A - Improvements in or relating to the production of cutting edges - Google Patents
Improvements in or relating to the production of cutting edgesInfo
- Publication number
- GB1096411A GB1096411A GB30658/63A GB3065863A GB1096411A GB 1096411 A GB1096411 A GB 1096411A GB 30658/63 A GB30658/63 A GB 30658/63A GB 3065863 A GB3065863 A GB 3065863A GB 1096411 A GB1096411 A GB 1096411A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strip
- electrolyte
- blade
- tube
- razor blade
- 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
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
- B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
- B23H9/08—Sharpening
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
<PICT:1096411/C6-C7/1> A cutting edge is formed or finished on razor blade strip in continuous form or razor blade blanks on a conveyer belt by selective electrolytic metal removal. The electrolyte may comprise phosphoric acid with chromic acid or glycerol. Additives may be included to control conductivity and inhibit decomposition of the bath and degassing may be assisted by the inclusion of a wetting agent. During the electrolytic removal the body of the blade or strip is protected from the electrolyte. Typically a razor blade strip 9 is passed lengthwise through a conductive tube 10 to which cathodic connection is made, the strip resting on a spring mounted platen 20 to which anodic contact is made outside the tube and being pressed against a conducting cover strip 21, platen 20 and cover strip 21 being insulated from the tube by insert 22, 23 and masking the body of the razor blade strip from the electrolyte which is fed by a pump along the tube and externally recirculated. After the metal removal step the strip is washed and dried. Projections 10f, extending to within 20 mils of the edge of the strip, of which only 3 mms. at each margin may be uncovered, are provided if both forming and finishing of the cutting edge is to be effected. For finishing only, the projections 10f may be dispensed with A. C. or A. C. super-imposed on D. C. may be used instead of D. C. and the power supply may provide a constant voltage, constant current or a cyclically varying voltage. A typical current density used is 200 amps/sq.in. Forming of the blade may be effected by impinging jets of electrolyte from one or both sides of the non-immersed strip. A blade with a gradual convex curvature towards the tip may be obtained. The process may be applied to making single edged blades or cutting edges comprising a small metal insert in a supporting body of plastic or ceramic, while the apparatus shown may also be used for cleaning the strip.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB30658/63A GB1096411A (en) | 1963-08-02 | 1963-08-02 | Improvements in or relating to the production of cutting edges |
| CH978764A CH431754A (en) | 1963-08-02 | 1964-07-24 | Method for making sharp the edge of cutting blades and apparatus for carrying out this method |
| FR983262A FR1496052A (en) | 1963-08-02 | 1964-07-28 | Process for producing sharp edges on razor blades |
| DE1521090A DE1521090C3 (en) | 1963-08-02 | 1964-07-30 | Device for the electrolytic production or partial production of a cutting edge on a razor blade band |
| US450718A US3399130A (en) | 1963-08-02 | 1965-04-26 | Apparatus for electrolytically sharpening the edges of a continuous strip |
| US27961D USRE27961E (en) | 1963-08-02 | 1970-08-25 | Lovekin electrolytic cell por sharpening the edge of a razor blade |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB30658/63A GB1096411A (en) | 1963-08-02 | 1963-08-02 | Improvements in or relating to the production of cutting edges |
| GB2003264 | 1964-05-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1096411A true GB1096411A (en) | 1967-12-29 |
Family
ID=26254385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB30658/63A Expired GB1096411A (en) | 1963-08-02 | 1963-08-02 | Improvements in or relating to the production of cutting edges |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3399130A (en) |
| CH (1) | CH431754A (en) |
| DE (1) | DE1521090C3 (en) |
| FR (1) | FR1496052A (en) |
| GB (1) | GB1096411A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3043452A1 (en) * | 1979-11-22 | 1981-06-04 | Kotobuki Seihan Printing Co., Ltd.,, Osaka | METHOD AND DEVICE FOR ELECTRO SHARPENING CUTTING TOOLS |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3658684A (en) * | 1969-10-13 | 1972-04-25 | Electrogenics Inc | Electrochemical machining apparatus |
| DE3000408A1 (en) * | 1980-01-08 | 1981-07-09 | Walter 5413 Bendorf Mindt | REDUCTION OF HEAT NEED IN PROCESS LINES |
| DE3626966A1 (en) * | 1986-08-08 | 1988-02-18 | Ulrich Jordan | METHOD FOR ELECTROCHEMICALLY MACHINING WORKPIECES, AND DEVICE FOR IMPLEMENTING THE METHOD |
| US4820390A (en) * | 1987-07-06 | 1989-04-11 | The Interlake Companies, Inc. | Apparatus and method for continuous electrochemical machining of strip material |
| US4904350A (en) * | 1988-11-14 | 1990-02-27 | International Business Machines Corporation | Submersible contact cell-electroplating films |
| DE4139066A1 (en) * | 1991-11-28 | 1993-06-03 | Hans Josef May | DEVICE FOR ELECTROLYTIC METAL DEPOSITION ON METAL BANDS |
| EP2580014A4 (en) * | 2010-06-10 | 2014-02-26 | Harvest Prec Components Inc | Electrochemical machining method and apparatus |
| US9157160B2 (en) | 2013-08-22 | 2015-10-13 | Ashworth Bros., Inc. | System and method for electropolishing or electroplating conveyor belts |
| CN105652099B (en) * | 2016-02-22 | 2018-10-12 | 西安电子科技大学 | A kind of micro- capacitance difference detection method based on switching circuit |
| FR3084675A1 (en) * | 2019-03-05 | 2020-02-07 | Juvénal Boulhol | Electrochemical machining process for the manufacture of metal knife blades or other sharp objects |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB189714580A (en) * | 1897-06-16 | 1897-07-24 | Ferdinand Grah | An Improved Method of Reducing Razor and other Cutlery Blades. |
| US2930739A (en) * | 1956-06-28 | 1960-03-29 | Burnham John | Method and apparatus for forming valve metal foil |
| US2974097A (en) * | 1957-11-12 | 1961-03-07 | Reynolds Metals Co | Electrolytic means for treating metal |
| US3281287A (en) * | 1962-02-27 | 1966-10-25 | Sandvikens Jernverks Ab | Corrosion resistant edge tool and method of making the same |
-
1963
- 1963-08-02 GB GB30658/63A patent/GB1096411A/en not_active Expired
-
1964
- 1964-07-24 CH CH978764A patent/CH431754A/en unknown
- 1964-07-28 FR FR983262A patent/FR1496052A/en not_active Expired
- 1964-07-30 DE DE1521090A patent/DE1521090C3/en not_active Expired
-
1965
- 1965-04-26 US US450718A patent/US3399130A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3043452A1 (en) * | 1979-11-22 | 1981-06-04 | Kotobuki Seihan Printing Co., Ltd.,, Osaka | METHOD AND DEVICE FOR ELECTRO SHARPENING CUTTING TOOLS |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1496052A (en) | 1967-09-29 |
| CH431754A (en) | 1967-03-15 |
| DE1521090C3 (en) | 1974-11-07 |
| DE1521090B2 (en) | 1974-04-04 |
| DE1521090A1 (en) | 1969-08-07 |
| US3399130A (en) | 1968-08-27 |
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