TH3669B - The process for producing coins and bi-metal coins. - Google Patents

Abstract

This invention deals with the process for producing a mint or a coin with two metals by splicing by inserting the edges. It is a ring with a flanged section (FLAN), where the flanged section is used consisting of a discrete groove on the periphery of the section. Such flange flanges are placed in the annular edge and crimping of the annular edge on the flange and coining is achieved in a single operation by means of a stamping die which is act to stimulate the metal insertion of the edge is a ring to the flange part and in discrete grooves which is made on the periphery of the flange and the seal of assembly example Creating the obverse of a mint or coin

Claims (2)

1. The process for the manufacture of a mint or two-metal coin, which is obtained by using a ring composed of openings. Inside and the inserted part of the appropriate size in order to insert Into that opening One ring and the insert part Will be assembled into a connection The inserted part Will be placed in the opening, the edge of the ring and the insert It comes with such rings to be pleated. Come in, at least in part, by connecting parts by Stimulate plastic deformation of the material of the piece. A part of a set of parts that the ring is inserted in a space where Is in between the said parts and finally will proceed to make A coin by The seal has the characteristics that a ring with a cross-section Rectangles are used with a thick initial thickness. That the initial thickness of the insertion part and the characteristic Scrap that the pleating of the assembly, the ring insert and the A coin is made in a single operation by Using a mold that has the function of causing deformation. Like the aforementioned plastic of the material of the ring goes into the insert part Come in and the stamping of the assembly of parts that insert the ring to make The surface of the coin or coin 2. The process under claim 1 has a special feature that The initial thickness of the ring used is greater than the initial thickness of the The insertion section 0.05 to 0.3 mm. 3. The process under claim 1 or 2 has special characteristics that That the connection part will consist of a continuous groove that is It is built on the periphery of the inserted section 4. The process according to claim 3 has a special characteristic that the section Connected, it consists of a series of discrete grooves, which are It is built on the periphery of the insert. 5. The process of claim 3 or 4 has special characteristics that That discrete grooves will be created during the operation Formation of furrows along the axis of the insertion. 6. The process of claims 1 to 5 has special characteristics that The gap between the insertion of the ring can be chosen in the help of 0.5 and 2 tenths of a millimeter. Internal openings and inserts that are positioned in such openings and are connected to them through a section. The connector will have the effect that the ring will have an initial cross-section. It is rectangular and has a thickness greater than the initial thickness. First of the inserted part The connection is obtained by deformation. A plastic prototype of the material of the ring goes into the insertion section. 8. The mint or medal according to claim 7 has the effect that the connection consists of a groove that does not connect Since it is built on the periphery of the inserted part that will Filled with ring material which is deformed like plastic Into the inserted part while the connection is made. 9. The coin or claim 7 or 8 has a characteristic that the initial thickness of the ring is greater than the thickness of the ring. The flan of 0.05 to 3 tenths of a millimeter 0. Mint or Claims 7 to 9 has a special characteristic that the initial space between the ring and the part of the coin is used. Inserted would be between 0.05 and 0.2 mm 1 1. The Mint, or Claims 7 through 10, has the effect that the inserted part consists of 6 to 8 grooves on its periphery. Each groove has the greatest depth. Which is suitable is about 0.2 mm 1 2. Rings and inserts to produce coins or A coin that uses two metals with a ring or part that is inserted will There is a special characteristic that the rings have an initial cross section of four. Square, and has a thickness greater than the original thickness of The suitable inserts are greater than 0.05 to 0.3 mm. (12 claims, 3 pages, 3 photos)