CN114749736A - Manufacturing method of lettering die and lettering die - Google Patents
Manufacturing method of lettering die and lettering die Download PDFInfo
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- CN114749736A CN114749736A CN202210365735.9A CN202210365735A CN114749736A CN 114749736 A CN114749736 A CN 114749736A CN 202210365735 A CN202210365735 A CN 202210365735A CN 114749736 A CN114749736 A CN 114749736A
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- 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
- B23H9/06—Marking or engraving
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- 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
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
- B23H1/04—Electrodes specially adapted therefor or their manufacture
- B23H1/06—Electrode material
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Abstract
The invention is suitable for the technical field of matrices, and provides a manufacturing method of a lettering die and the lettering die, wherein the manufacturing method comprises the following steps: selecting red copper or graphite as an electrode material, and cutting the electrode material to obtain an electrode to-be-processed product; carrying out fine engraving processing on the electrode to-be-processed product to obtain an electrode finished product with a plurality of groups of concave structures; and placing the finished electrode product on a matrix blank, and carrying out electro-corrosion processing to enable the end face of the matrix blank to form a plurality of groups of protruding structures corresponding to the plurality of groups of concave structures on the finished electrode product, so as to obtain the lettering die. The lettering mould can realize consistent and clear depth of the identification printed on the tool, and can realize that the identification can be printed on the tool at one time, thereby improving the lettering processing efficiency.
Description
The application is a divisional application of the invention named as a manufacturing method of a lettering die and the lettering die, wherein the application number of a master case is 202010269061.3, and the application date is 2020.04.08.
Technical Field
The invention belongs to the technical field of character dies, and particularly relates to a manufacturing method of a lettering die and the lettering die.
Background
At present, various character marks or pattern marks need to be marked on the convex arc-shaped surfaces of many tubular products or metal products on the market, and in order to ensure that the marked various characters or patterns can be clearly stored for a long time, a user can conveniently classify and distinguish the characters or patterns, and the efficiency of lettering on the surfaces of the tubular products or the metal products is improved, lettering methods are generally adopted for marking.
However, the lettering die processed by the traditional lettering die manufacturing method is not easy to lettering tubular products or metal products, and has the problems of unclear lettering, short lettering retention time and high labor cost.
Disclosure of Invention
The invention aims to provide a manufacturing method of a lettering die, and aims to solve the problems in the background technology.
The invention is realized in this way, a method for manufacturing a lettering die comprises the following steps:
selecting red copper or graphite as an electrode material, and cutting the electrode material to obtain an electrode to-be-processed product;
Step two, carrying out fine carving processing on the electrode to-be-processed product to obtain an electrode finished product with a plurality of groups of concave structures;
placing the finished electrode product on a matrix blank, and carrying out electro-corrosion processing to enable the end face of the matrix blank to form a plurality of groups of convex structures corresponding to the plurality of groups of concave structures on the finished electrode product, so as to obtain a lettering die; the blank of the matrix is made of hard alloy; the hard alloy comprises the following components in parts by weight: 5-10 parts of molybdenum, 10-20 parts of silicon boride, 10-20 parts of silicon nitride, 10-20 parts of chromium boride and 20-30 parts of tungsten carbide.
As a preferable scheme of the invention, the electrode material is red copper, and the red copper comprises the following components in percentage by mass: 0.04-0.08% of lanthanum, 0.02-0.06% of iron, 0.04-0.1% of zinc, 0.03-0.08% of nickel, 0.02-0.06% of sulfur, 0.03-0.07% of tungsten and the balance of copper, wherein the sum of the mass fractions of the components is 100%.
In another preferred embodiment of the present invention, in the first step, the electrode material is cut into a rectangular or square shape by using a wire cutting machine, so as to obtain the electrode workpiece.
As another preferable scheme of the present invention, in the second step, according to the content of the required typeface, program setting is performed in a computer of an engraving machine, and the identification content, the depth of the identification content, and the end face radian of the electrode to-be-processed product are set, so as to perform the fine engraving process on the electrode to-be-processed product by the engraving machine.
As another preferable scheme of the present invention, in the third step, the finished electrode product is detachably connected to an upper end of a machining area of an electric discharge machine, the blank of the matrix to be machined is correspondingly placed on a lower end of the finished electrode product, and then the electric discharge machine is used for performing electro-erosion machining.
As another preferable scheme of the invention, the end face of the matrix blank is of a plane structure or a concave arc surface structure.
In another preferable scheme of the invention, in the third step, the working voltage of the electro-corrosion machining is 160-200V, and the working current of the electro-corrosion machining is 1-12A.
In another preferable embodiment of the present invention, in the third step, the depth of the electro-erosion process is 0.3 to 0.6 mm.
The invention also aims to provide the lettering mould manufactured by the manufacturing method of the lettering mould.
According to the manufacturing method of the lettering die, provided by the invention, the electrode with a plurality of groups of concave structures and the lettering die blank are adopted for carrying out electro-corrosion processing, so that a plurality of groups of convex structures corresponding to the concave structures on the electrode can be formed on the end surface of the lettering die blank, the obtained lettering die can realize consistent and clear depth of the marks printed on the tool, and can realize printing of the marks on the tool at one time, thereby improving the lettering processing efficiency.
Drawings
FIG. 1 is a diagram showing the effect of the lettering mold obtained by the invention after lettering.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides a manufacturing method of a lettering die, which comprises the following steps:
step one, red copper or graphite is selected as an electrode material, and the electrode material is cut to obtain an electrode to-be-processed product; the electrode material can be processed into any required shape and size by adopting a cutting mode, and different actual requirements can be met.
And step two, carrying out fine engraving processing on the electrode to-be-processed product to obtain a finished electrode product with a plurality of groups of concave structures.
Step three, placing the finished electrode product on the matrix blank, and performing electro-corrosion processing to form a plurality of groups of convex structures corresponding to the plurality of groups of concave structures on the finished electrode product on the end face of the matrix blank so as to obtain a lettering die; the blank of the matrix is made of hard alloy; the hard alloy comprises the following components in parts by weight: 5-10 parts of molybdenum, 10-20 parts of silicon boride, 10-20 parts of silicon nitride, 10-20 parts of chromium boride and 20-30 parts of tungsten carbide. The hardness of the hard alloy in the embodiment is HRC 90-93, and the prepared lettering die is high in hardness and not prone to abrasion, so that the lettering marks engraved by the prepared lettering die are consistent and clear in depth.
Specifically, in the first step, the electrode material is cut into a rectangular or square shape by using a wire cutting machine, so as to obtain the electrode to-be-processed product.
Specifically, in the second step, according to the content of the required typeface, program setting is carried out on a computer of the engraving machine, and the identification content, the depth and the end face radian of the identification content and the electrode to-be-processed product are set so as to carry out fine engraving processing on the electrode to-be-processed product through the engraving machine.
Specifically, in the third step, the finished electrode product is detachably connected to the upper end of the machining area of the electric spark machine, a matrix blank to be machined is correspondingly placed at the lower end of the finished electrode product, and then electric corrosion machining is performed through the discharge of the electric spark machine.
Specifically, the end face of the matrix blank is of a plane structure or a concave arc surface structure.
Specifically, in the third step, the working voltage of the electro-corrosion machining is 160-200V, and the working current of the electro-corrosion machining is 1-12A.
Specifically, in the third step, the corrosion depth of the electro-corrosion processing is 0.3-0.6 mm.
The invention also provides a lettering die prepared by the manufacturing method of the lettering die.
Example 1
The embodiment provides a manufacturing method of a lettering die, which comprises the following steps:
(1) the electrode material is made of red copper and cut into a rectangular shape by a wire cutting machine of DK7732Z type sold in the Pianling group according to the size of the required characters, and the to-be-processed product of the electrode is obtained. The red copper comprises the following components in percentage by mass: 0.04% of lanthanum, 0.02% of iron, 0.04% of zinc, 0.03% of nickel, 0.02% of sulfur, 0.03% of tungsten and 99.82% of copper; the red copper may contain a trace amount of impurities, which are not effective components and are small in content, and thus are ignored here.
(2) According to the content of the required characters, program setting is carried out on a computer of a commercially available Qidiao carving card engraving machine, specific parameters such as identification content of an electrode to-be-processed product, depth of the identification content and end face radian are set, the electrode to-be-processed product is subjected to fine engraving processing through the engraving machine, an electrode finished product with a plurality of groups of concave structures is obtained, and the plurality of concave structures form characters needing to be engraved on a target product.
(3) Connecting the finished electrode product to the upper end of a machining area of a commercial permanent large-brand electric spark machine in a detachable mode, correspondingly placing a character die blank to be machined at the lower end of the finished electrode product, and then carrying out electric corrosion machining through discharge of the electric spark machine to enable the end face of the character die blank to form a plurality of groups of protruding structures corresponding to the plurality of groups of concave structures on the finished electrode product, so as to obtain the lettering die. The blank of the character die is made of high-speed steel, the end face of the blank of the character die is of a plane structure, and the blank of the character die can be cut into a required shape through a cutting machine. The working voltage of the electroerosion machining was 160V, the working current of the electroerosion machining was 1A, and the erosion depth of the electroerosion machining was 0.3 mm.
Example 2
The embodiment provides a manufacturing method of a lettering die, which comprises the following steps:
(1) graphite is selected as an electrode material, and the electrode material is cut into a square shape by a linear cutting machine which is commercially available from Fengling group under the model of DK7732Z according to the size of a required character, so as to obtain a product to be processed of the electrode.
(2) According to the content of the required word, program setting is carried out on a computer of a commercially available Qiu carving brand engraving machine, specific parameters such as identification content of an electrode to-be-processed product, depth of the identification content and end face radian are set, the electrode to-be-processed product is subjected to fine engraving processing through the engraving machine, an electrode finished product with a plurality of groups of concave structures is obtained, and the concave structures form characters needing to be engraved on a target product.
(3) Connecting the finished electrode product to the upper end of a machining area of a commercial Yongda electric spark machine in a detachable mode, correspondingly placing a matrix blank to be machined at the lower end of the finished electrode product, and then carrying out electro-erosion machining through the discharge of the electric spark machine to enable the end face of the matrix blank to form a plurality of groups of protruding structures corresponding to the plurality of groups of recessed structures on the finished electrode product, so as to obtain the lettering die. The matrix blank is made of hard alloy, the end face of the matrix blank is of a concave arc surface structure, and the matrix blank can be cut into a required shape through a cutting machine. Further, the operating voltage of the electroerosion machining was 200V, the operating current of the electroerosion machining was 12A, and the erosion depth of the electroerosion machining was 0.6 mm. In addition, the matrix blank made of the hard alloy material is obtained by mixing 50g of molybdenum, 100g of silicon boride, 100g of silicon nitride, 100g of chromium boride and 300g of tungsten carbide, and then sequentially performing the processes of ball milling, press forming, high-temperature sintering, natural cooling and the like, wherein the specific process conditions of the processes of ball milling, press forming, high-temperature sintering and the like can be the same as the preparation process of the hard alloy in the prior art, so that the details are not repeated here.
Example 3
The embodiment provides a manufacturing method of a lettering die, which comprises the following steps:
(1) the electrode material is made of red copper and cut into square shape by a linear cutting machine with model DK7732Z sold in Fengling group according to the size of the required characters, and the product to be processed of the electrode is obtained. The copper comprises the following components in parts by mass: 0.08 percent of lanthanum, 0.06 percent of iron, 0.1 percent of zinc, 0.08 percent of nickel, 0.06 percent of sulfur, 0.07 percent of tungsten and 99.55 percent of copper; it should be noted that red copper may contain a trace amount of impurities, which are not effective components and are relatively small in amount, and thus are ignored here.
(2) According to the content of the required characters, program setting is carried out on a computer of a commercially available Qidiao carving card engraving machine, specific parameters such as identification content of an electrode to-be-processed product, depth of the identification content and end face radian are set, the electrode to-be-processed product is subjected to fine engraving processing through the engraving machine, an electrode finished product with a plurality of groups of concave structures is obtained, and the plurality of concave structures form characters needing to be engraved on a target product.
(3) Connecting the finished electrode product to the upper end of a machining area of a commercial permanent large-brand electric spark machine in a detachable mode, correspondingly placing a character die blank to be machined at the lower end of the finished electrode product, and then carrying out electric corrosion machining through discharge of the electric spark machine to enable the end face of the character die blank to form a plurality of groups of protruding structures corresponding to the plurality of groups of concave structures on the finished electrode product, so as to obtain the lettering die. The matrix blank is made of high-speed steel, the end face of the matrix blank is of a concave arc surface structure, and the matrix blank can be cut into a required shape through a cutting machine. Further, the operating voltage of the electroerosion machining was 200V, the operating current of the electroerosion machining was 9A, and the erosion depth of the electroerosion machining was 0.4 mm.
Example 4
The embodiment provides a manufacturing method of a lettering die, which comprises the following steps:
(1) graphite is selected as an electrode material, and the electrode material is cut into a square shape by a linear cutting machine which is commercially available from Fengling group under the model of DK7732Z according to the size of a required character, so as to obtain a product to be processed of the electrode.
(2) According to the content of the required word, program setting is carried out on a computer of a commercially available Qiu carving brand engraving machine, specific parameters such as identification content of an electrode to-be-processed product, depth of the identification content and end face radian are set, the electrode to-be-processed product is subjected to fine engraving processing through the engraving machine, an electrode finished product with a plurality of groups of concave structures is obtained, and the concave structures form characters needing to be engraved on a target product.
(3) Connecting the finished electrode product to the upper end of a machining area of a commercial Yongda electric spark machine in a detachable mode, correspondingly placing a matrix blank to be machined at the lower end of the finished electrode product, and then carrying out electro-erosion machining through the discharge of the electric spark machine to enable the end face of the matrix blank to form a plurality of groups of protruding structures corresponding to the plurality of groups of recessed structures on the finished electrode product, so as to obtain the lettering die. The matrix blank is made of hard alloy, the end face of the matrix blank is of a concave arc surface structure, and the matrix blank can be cut into a required shape through a cutting machine. Further, the operating voltage of the electroerosion machining was 200V, the operating current of the electroerosion machining was 12A, and the erosion depth of the electroerosion machining was 0.6 mm. In addition, the matrix blank made of the hard alloy material is obtained by mixing 100g of molybdenum, 200g of silicon boride, 200g of silicon nitride, 200g of chromium boride and 200g of tungsten carbide, and then sequentially performing the processes of ball milling, press forming, high-temperature sintering, natural cooling and the like, wherein the process conditions of the specific processes of ball milling, press forming, high-temperature sintering and the like can be the same as the preparation process of the hard alloy in the prior art, so that the details are not repeated here.
Example 5
The embodiment provides a manufacturing method of a lettering die, which comprises the following steps:
(1) the electrode material is made of red copper and cut into square shape by a linear cutting machine with model DK7732Z sold in Fengling group according to the size of the required characters, and the product to be processed of the electrode is obtained. The copper comprises the following components in parts by mass: 0.06% of lanthanum, 0.04% of iron, 0.08% of zinc, 0.05% of nickel, 0.04% of sulfur, 0.05% of tungsten and 99.68% of copper; it should be noted that red copper may contain a trace amount of impurities, which are not effective components and are relatively small in amount, and thus are ignored here. .
(2) According to the content of the required characters, program setting is carried out on a computer of a commercially available Qidiao carving card engraving machine, specific parameters such as identification content of an electrode to-be-processed product, depth of the identification content and end face radian are set, the electrode to-be-processed product is subjected to fine engraving processing through the engraving machine, an electrode finished product with a plurality of groups of concave structures is obtained, and the plurality of concave structures form characters needing to be engraved on a target product.
(3) Connecting the finished electrode product to the upper end of a machining area of a commercial permanent large-brand electric spark machine in a detachable mode, correspondingly placing a character die blank to be machined at the lower end of the finished electrode product, and then carrying out electric corrosion machining through discharge of the electric spark machine to enable the end face of the character die blank to form a plurality of groups of protruding structures corresponding to the plurality of groups of concave structures on the finished electrode product, so as to obtain the lettering die. The matrix blank is made of hard alloy, the end face of the matrix blank is of a concave arc surface structure, and the matrix blank can be cut into a required shape through a cutting machine. The working voltage of the electroerosion machining was 200V, the working current of the electroerosion machining was 12A, and the erosion depth of the electroerosion machining was 0.6 mm. In addition, the matrix blank made of the hard alloy material is obtained by mixing 80g of molybdenum, 150g of silicon boride, 150g of silicon nitride, 150g of chromium boride and 250g of tungsten carbide, and then sequentially performing the processes of ball milling, press forming, high-temperature sintering, natural cooling and the like, wherein the specific process conditions of the processes of ball milling, press forming, high-temperature sintering and the like can be the same as the preparation process of the hard alloy in the prior art, so that the details are not repeated here.
The lettering mould is contacted with the surface of a target product (such as a tubular product and the like) to be lettered, and a certain pressure is applied, so that the lettering surface on the lettering mould can be printed on the surface of the target product, and the lettering operation is realized. The lettering effect graph of the lettering mould obtained by the manufacturing method provided by the embodiment 5 is shown in the attached figure 1, and the lettering marks engraved by the lettering mould manufactured by the embodiment of the invention have consistent and clear depth, and the engraved lettering can be kept for a long time, so that the lettering cannot be blurred for a long time.
In addition, the embodiment can ensure that various physical and mechanical properties of the manufactured lettering die can meet related index requirements by selecting proper electrode materials and blank materials of the lettering die, so that the lettering die obtained by the embodiment of the invention is not easy to deform when being subjected to external force, and the service life of the lettering die can be prolonged.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. The manufacturing method of the lettering die is characterized by comprising the following steps of:
selecting red copper or graphite as an electrode material, and cutting the electrode material to obtain an electrode to-be-processed product;
step two, carrying out fine engraving processing on the electrode to-be-processed product to obtain an electrode finished product with a plurality of groups of concave structures;
placing the finished electrode product on a matrix blank, and performing electro-corrosion processing to form a plurality of groups of convex structures corresponding to the plurality of groups of concave structures on the finished electrode product on the end face of the matrix blank to obtain a lettering die; the blank of the matrix is made of hard alloy; the hard alloy comprises the following components in parts by weight: 5-10 parts of molybdenum, 10-20 parts of silicon boride, 10-20 parts of silicon nitride, 10-20 parts of chromium boride and 20-30 parts of tungsten carbide.
2. The manufacturing method of the lettering die as claimed in claim 1, wherein the electrode material is red copper, and the red copper comprises the following components in parts by mass: 0.04-0.08% of lanthanum, 0.02-0.06% of iron, 0.04-0.1% of zinc, 0.03-0.08% of nickel, 0.02-0.06% of sulfur, 0.03-0.07% of tungsten and the balance of copper, wherein the sum of the mass fractions of the components is 100%.
3. The method for manufacturing a lettering die as claimed in claim 1, wherein in the first step, the electrode material is cut into a rectangular or square shape by a wire cutting machine to obtain the electrode to-be-processed product.
4. The method for manufacturing an engraving mold according to claim 1, wherein in the second step, according to the content of the required character, program setting is performed on a computer of an engraving machine, and the identification content, the depth of the identification content and the end face radian of the electrode to-be-processed product are set, so that the engraving machine can be used for performing fine engraving on the electrode to-be-processed product.
5. The method for manufacturing an engraving mold according to claim 1, wherein in the third step, the electrode finished product is detachably connected to an upper end of a machining area of an electric discharge machine, the blank of the mold to be machined is correspondingly placed on a lower end of the electrode finished product, and then the electric discharge machine is used for performing electroerosion machining.
6. The method for manufacturing an engraving die as claimed in claim 1, wherein the end face of the blank of the matrix is of a planar structure or a concave cambered surface structure.
7. The method for manufacturing the lettering mold according to claim 1, wherein in the third step, the working voltage of the electro-corrosion processing is 160-200V, and the working current of the electro-corrosion processing is 1-12A.
8. The method for manufacturing the lettering mold according to claim 7, wherein in the third step, the electro-etching process is performed to an etching depth of 0.3-0.6 mm.
9. A lettering die manufactured by the method for manufacturing the lettering die as claimed in any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210365735.9A CN114749736A (en) | 2020-04-08 | 2020-04-08 | Manufacturing method of lettering die and lettering die |
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| CN202210365735.9A CN114749736A (en) | 2020-04-08 | 2020-04-08 | Manufacturing method of lettering die and lettering die |
| CN202010269061.3A CN111266677A (en) | 2020-04-08 | 2020-04-08 | Manufacturing method of lettering die and lettering die |
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| CN202010269061.3A Division CN111266677A (en) | 2020-04-08 | 2020-04-08 | Manufacturing method of lettering die and lettering die |
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| CN202010269061.3A Pending CN111266677A (en) | 2020-04-08 | 2020-04-08 | Manufacturing method of lettering die and lettering die |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200970934Y (en) * | 2006-09-26 | 2007-11-07 | 丹阳市无字硬质合金有限公司 | Matrix for lettering |
| CN110000438A (en) * | 2019-04-23 | 2019-07-12 | 朱萍香 | A kind of hard alloy engraving die preparation method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86100570A (en) * | 1986-05-06 | 1987-01-31 | 上海模具技术研究所 | Process for producing printing matrices |
| CN1185088C (en) * | 2000-10-18 | 2005-01-19 | 佺格数位生技股份有限公司 | Mold making method for making bottle surface pattern |
| CN102528184A (en) * | 2010-12-28 | 2012-07-04 | 江苏森威集团有限责任公司 | Process for machining trademark steel seal die of flywheel through electric corrosion |
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2020
- 2020-04-08 CN CN202210365735.9A patent/CN114749736A/en active Pending
- 2020-04-08 CN CN202010269061.3A patent/CN111266677A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200970934Y (en) * | 2006-09-26 | 2007-11-07 | 丹阳市无字硬质合金有限公司 | Matrix for lettering |
| CN110000438A (en) * | 2019-04-23 | 2019-07-12 | 朱萍香 | A kind of hard alloy engraving die preparation method |
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Application publication date: 20220715 |