US428961A - Method of making dies - Google Patents

Method of making dies Download PDF

Info

Publication number
US428961A
US428961A US428961DA US428961A US 428961 A US428961 A US 428961A US 428961D A US428961D A US 428961DA US 428961 A US428961 A US 428961A
Authority
US
United States
Prior art keywords
block
die
hub
steel
coating
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 - Lifetime
Application number
Publication date
Application granted granted Critical
Publication of US428961A publication Critical patent/US428961A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/22—Making metal-coated products; Making products from two or more metals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
    • H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L24/42—Wire connectors; Manufacturing methods related thereto
    • H01L24/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
    • H01L24/45—Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
    • H01L2224/45—Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/00011—Not relevant to the scope of the group, the symbol of which is combined with the symbol of this group
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/00014—Technical content checked by a classifier the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details

Definitions

  • This invention relates to the manufacture or duplication of dies which are used in mak ing various articles of malleable metal such as knife-handlesthe dies being of hardened steel, in which the desired ornamentation is formed in intaglio, so that articles having ornam entation in relief may be formed by pressing suitable malleable metal into said dies.
  • Dies of this class are made by cutting the desired intaglio ornamentation by hand in a block of steel, the cutting operation being verylaborious and expensive.
  • duplicating said dies is by making a reverse of the die by forcing a mass of soft steel into the original die, and subsequently hardening the same, the article thus produced being called a hub, and having ornamentation in relief upon its surface like that produced on the goods made by the die, and then forcing said hub into a block of red or white hot steel, thus forming in the latter a fac-simile of the acting surface of the die, the steel block being afterward hardened, as. usual.
  • My invention has for its object to prevent the formation of scale on the ornamented or acting surface of a duplicate die formed by pressing a hub into a block of heated steel;
  • Figure 1 represents a longitudinal section of the block of steel from which a duplicate die is to be made.
  • Fig. 2 represents a similar section of said block, showing the electro-deposited coating on the surface in which the die is to be formed.
  • Fig. 3 represents a longitudinal section showing the hub pressed into the coated surface of the block.
  • Fig. 4 represents a longitudi- 7o nal section of the block after the removal of the hub.
  • Fig. 5 represents a section on line 00 m, Fig. 4.
  • 0 represents a hub, or, in other Words, a block of steel that has been pressedinto a die formed in the usual way With intaglio ornamentatiomthe metal of the hub being conformed by pressure to said ornamentation, so that it presents a surface having relief ornamentation.
  • Said hub is made for the purpose of producing in a block a of hot steel a duplicate of the original die by the pressure of the acting surface of the hub into said block, a surface having intaglio or sunken ornamentation being thus formed in said block.
  • a coating 1) of cobalt, nickel, silver, or any other suitable metal capable of being deposited by electric action adheres closely to the surface of the steel 5 block, and is pressed into the block by the action of the hub, the acting or die surface a of the block being formed through said coating, so that all parts of said die-surface are protected by the coating, as shown in IOO Figs. 4E and 5.
  • the block a is heated to redness, or thereabout, when the hub is pressed into it, and if the coating 1) were not present the heated die'surface a would oxidize and scale would form thereon; but the firm and intimate union of the inoxidizable coating I; with the diesurface prevents the access of air to the diesnrface, so that there can be no oxidation of the steel surface, the latter being, therefore, entirely free from scale.
  • the coating 1) should be extremely thin, and, in fact, a mere film, so thatits interposition between the hub and the steel surface formed by the hub will not affect the ornamentation formed on the steel surface.
  • the coating being of comparatively soft metal, wears away when the die is used, its absence causing'no appreciable change in the form of the die.
  • Said solution may be applied by means of a brush; or the block maybe placed with a quantity of small metal articlessuch as tacks or rivets-in a tu n1- bling box with a suitable quantity of the sulphateof-copper solution, said box being rotated to cause the said small articles to repeatedly strike the surfaces of the block while the solution is in contact with said surfaces, the percussive action of said articles having the effect of hardenin the film of copper that forms on the surfaces of the block.
  • the coating formed by electro deposition however, because of its firmer union with the surface of the block and the greater protection it affords said surface.
  • I claim- 1 In the method of making duplicate dies, which consists in impressing a hub the surface of which is the reverse of the original die into one of the surfaces of a block of heated steel and subsequently hardening said block, the improved step, which consists in protecting the steel surface to be impressed by a coating of a suitable metal, adapted to exclude air from the steel surface, as set forth.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Adornments (AREA)

Description

ooooooooo I MMMMMMMMMMMMMMMMMM No. 428.961 Pa t dM y 27 1 ITI IEEEEE':
@MW I w INVENTURI 7 UNITED STATES PATENT OFFICE.
JOHN SCOTT, OF TAUNTON, MASSACHUSETTS.
METHOD OF MAKING DIES.
SPECIFICATION forming part of Letters Patent No. 428,961, dated May 27, 1890.
Application filed December 23, 1839- Serial No. 334,688. (No model.)
To all whom it may concern.-
Be it known that I, JOHN SCOTT, of Taunton, in the county of Bristol and State of Massachusetts, have invented certain new and useful Improvements in the Method of Haking Dies for the Manufacture of Ornamented Metal Articles, of which the following is a specification.
This invention relates to the manufacture or duplication of dies which are used in mak ing various articles of malleable metalsuch as knife-handlesthe dies being of hardened steel, in which the desired ornamentation is formed in intaglio, so that articles having ornam entation in relief may be formed by pressing suitable malleable metal into said dies. Dies of this class are made by cutting the desired intaglio ornamentation by hand in a block of steel, the cutting operation being verylaborious and expensive. Owing to the expense of making dies of this class, it is very desirable to provide cheaper duplicates of each die, so that in the event of the injury or breakage of the original die a fac-simile thereof will be available, and in case the demand for the goods of the pattern for which the die was made is greater than can be supplied by one die any desired number of duplicate dies can be used simultaneously. The only method known of duplicating said dies is by making a reverse of the die by forcing a mass of soft steel into the original die, and subsequently hardening the same, the article thus produced being called a hub, and having ornamentation in relief upon its surface like that produced on the goods made by the die, and then forcing said hub into a block of red or white hot steel, thus forming in the latter a fac-simile of the acting surface of the die, the steel block being afterward hardened, as. usual. A serious difficulty attends this method of duplicationviz., the oxidation of the ornamented surface of the duplicate by contact of air therewith While the metal is hot, said oxidation causing the formation of scale on the ornamented surface to such an extent as to seriously deface and injure the ornamentation.
My invention has for its object to prevent the formation of scale on the ornamented or acting surface of a duplicate die formed by pressing a hub into a block of heated steel;
and it consists in protecting the said surface by a coating or film of a suitable metal deposited by the process of electro-deposition, said coating being pressed into the block by the action of the hub and preventing the access of air to the die-surface formed on the block by the hub, as I will now proceed to describe.
Of the accompanying drawings, forming a part of this specification, Figure 1 represents a longitudinal section of the block of steel from which a duplicate die is to be made. Fig. 2 represents a similar section of said block, showing the electro-deposited coating on the surface in which the die is to be formed. Fig. 3 represents a longitudinal section showing the hub pressed into the coated surface of the block. Fig. 4 represents a longitudi- 7o nal section of the block after the removal of the hub. Fig. 5 represents a section on line 00 m, Fig. 4.
The same letters of reference indicate the same parts in all of the figures.
In the drawings, 0 represents a hub, or, in other Words, a block of steel that has been pressedinto a die formed in the usual way With intaglio ornamentatiomthe metal of the hub being conformed by pressure to said ornamentation, so that it presents a surface having relief ornamentation. Said hub is made for the purpose of producing in a block a of hot steel a duplicate of the original die by the pressure of the acting surface of the hub into said block, a surface having intaglio or sunken ornamentation being thus formed in said block.
In carrying out'my invention I deposit, by a suitable electroplating process, upon the 0 surface of the block a, into which the hub is pressed, a coating 1) of cobalt, nickel, silver, or any other suitable metal capable of being deposited by electric action. Said coating adheres closely to the surface of the steel 5 block, and is pressed into the block by the action of the hub, the acting or die surface a of the block being formed through said coating, so that all parts of said die-surface are protected by the coating, as shown in IOO Figs. 4E and 5.
The block a is heated to redness, or thereabout, when the hub is pressed into it, and if the coating 1) were not present the heated die'surface a would oxidize and scale would form thereon; but the firm and intimate union of the inoxidizable coating I; with the diesurface prevents the access of air to the diesnrface, so that there can be no oxidation of the steel surface, the latter being, therefore, entirely free from scale. The coating 1) should be extremely thin, and, in fact, a mere film, so thatits interposition between the hub and the steel surface formed by the hub will not affect the ornamentation formed on the steel surface. The coating, being of comparatively soft metal, wears away when the die is used, its absence causing'no appreciable change in the form of the die.
I do not limit myself to the formation of the coating 1) by electro-deposition, as a coating which I believe would be fairly useful may be formed by subjecting the block I) to the action of a solution of sulphate of copper, thereby forming a thin film of copper on the surface of the block. Said solution may be applied by means of a brush; or the block maybe placed with a quantity of small metal articlessuch as tacks or rivets-in a tu n1- bling box with a suitable quantity of the sulphateof-copper solution, said box being rotated to cause the said small articles to repeatedly strike the surfaces of the block while the solution is in contact with said surfaces, the percussive action of said articles having the effect of hardenin the film of copper that forms on the surfaces of the block. I prefer the coating formed by electro deposition, however, because of its firmer union with the surface of the block and the greater protection it affords said surface.
I claim- 1. In the method of making duplicate dies, which consists in impressing a hub the surface of which is the reverse of the original die into one of the surfaces of a block of heated steel and subsequently hardening said block, the improved step, which consists in protecting the steel surface to be impressed by a coating of a suitable metal, adapted to exclude air from the steel surface, as set forth.
2. The improved method of making duplicate dies hereinbefore described, the same consisting in depositing an electro-plate coat- :ing of metal upon the surface of a steel block, heating said block, and while it is hot impressing a male die or hub into the coated surface, and thereby forming a die-surface which is protected from oxidation by said coating, as set forth.
In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 21 st day of December, A. I). 188.).
J OIIN SCOTT.
\Vitncsscs:
O. F. BROWN, \V. C. RAMsAY.
US428961D Method of making dies Expired - Lifetime US428961A (en)

Publications (1)

Publication Number Publication Date
US428961A true US428961A (en) 1890-05-27

Family

ID=2497871

Family Applications (1)

Application Number Title Priority Date Filing Date
US428961D Expired - Lifetime US428961A (en) Method of making dies

Country Status (1)

Country Link
US (1) US428961A (en)

Similar Documents

Publication Publication Date Title
EP3344798B1 (en) Method for producing a galvanically decorated component
US428961A (en) Method of making dies
US779979A (en) Manufacturing decorative articles from plastic materials.
DE502005010601D1 (en) Embossing mold for embossing relief structures and process for their production
US192167A (en) Improvement in methods of ornamenting metallic surfaces for jewelry
ATE77847T1 (en) PROCESSES FOR THE MANUFACTURE OF CORROSION, WEAR AND COMPRESSION RESISTANT COATINGS.
US303222A (en) Metallic article and process of manufacturing the same
WO1998053719A2 (en) Method for impressing microstructures into metals or other hard materials, corresponding impression tool and coin
JPS5973153A (en) Mold for continuous casting and its production
US514070A (en) Manufacture of metal goods for artistic purposes
US468591A (en) Process of ornamenting vases or similar articles
JP3345923B2 (en) Textured mold with excellent wear resistance
US302036A (en) Method of ornamenting metal plates for jewelry
US1190737A (en) Art or method of making transfer-rolls for producing undersurface or intaglio printing-plates.
US497303A (en) Method of making sign-letters
US1033909A (en) Method of making sound-records.
US1290580A (en) Method of marking enameled ware.
US1063749A (en) Mold for electrotyping processes.
US683425A (en) Art and process of manufacturing fabric-covered ornaments or moldings.
US316225A (en) Feedeeick beck
US678383A (en) Process of metal ornamentation.
US396589A (en) Process of making rolls for embossing plastic material
US1345115A (en) Matrix for producing sound-records
US554243A (en) Method of producing molds for paper-making machines
US240615A (en) Manufacture of glass-molds