CN112297330A - Manufacturing method of highlight part - Google Patents
Manufacturing method of highlight part Download PDFInfo
- Publication number
- CN112297330A CN112297330A CN202011047956.9A CN202011047956A CN112297330A CN 112297330 A CN112297330 A CN 112297330A CN 202011047956 A CN202011047956 A CN 202011047956A CN 112297330 A CN112297330 A CN 112297330A
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- China
- Prior art keywords
- manufacturing
- mould
- injection molding
- cavity
- carving
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C45/0055—Shaping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/362—Laser etching
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention provides a manufacturing method of a highlight part, which comprises the following steps: step S1: manufacturing a mould, wherein the mould is made of steel with the hardness of more than HRC44, and the surface of a mould cavity of the mould is integrally polished to be more than 10000# diamond gypsum; step S2: carving patterns, namely carving preset texture patterns on the die cavity by using a laser carving machine, wherein the feeding amount of laser processing is 1 micron per layer, and the light spot spacing is smaller than 1 micron; step S3: and (3) injection molding production, namely performing injection molding on the PC + ABS or PMMA + ASA material by using an injection molding machine, wherein the cavity mold temperature is higher than 80 ℃. The manufacturing method of the highlight part is lower in manufacturing cost, shorter in manufacturing period, simpler to manufacture, high in production effect and better in stability, and the appearance effect of the produced product is better.
Description
Technical Field
The invention relates to the field of automobile manufacturing, in particular to a manufacturing method of a highlight part.
Background
The existing high-light part surface treatment process mainly has the following key conditions:
1) special highlight die
The die cavity surface needs to be integrally polished to 100000# diamond gypsum and is subjected to plating hardening treatment, the service life of the highlight surface is prolonged, and the die is high in manufacturing cost and long in period due to high requirements on steel hardness and polishing degree;
2) a precise high-light part injection molding device,
because the whole production process needs continuous temperature rise and temperature reduction, a mold locking mechanism of the injection molding machine has good rigidity and strength to ensure the accuracy and stability of mold locking force, and simultaneously, because the hardness of injection molding raw materials is higher and the melt index is low, the plasticizing of a screw is good to ensure the injection molding filling quality, and the equipment investment cost is high;
3) harsh injection molding conditions and special auxiliary equipment
The surface layer of the highlight part needs to be bright in appearance and needs to have certain hardness, so that a 'quenching and rapid heating' device, generally an electric heating or steam mold temperature controller, is required to be arranged during injection molding, a heating and cooling cycle (20-120 ℃) is rapidly realized, the price of an auxiliary device is high, and the service life of a mold can be influenced by rapid cold and heat alternation;
4) independent closed dustless environment
In order to reduce the potential safety hazard of high-temperature and high-pressure production and ensure the neat surface of a high-light part, a relatively independent closed environment is generally required to be established, and the utilization rate of a field is low;
the existing high-gloss part surface treatment process is high in cost and long in period, and the produced high-gloss part product is a high-gloss mirror surface, so that slight scratches and oil stains can be obviously amplified, the whole hardness is limited by raw materials, the scratch resistance is poor, varnish is required to be supplemented and sprayed usually, the whole product is in a full-mirror surface state, additional design elements cannot be added, and the product is monotonous.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a method for manufacturing a high-light part, which has a simpler processing technology and lower cost.
The invention provides a manufacturing method of a highlight part, which comprises the following steps:
step S1: manufacturing a mould, wherein the mould is made of steel with the hardness of more than HRC44, and the surface of a mould cavity of the mould is integrally polished to be more than 10000# diamond gypsum;
step S2: carving patterns, namely carving preset texture patterns on the die cavity by using a laser carving machine, wherein the feeding amount of laser processing is 1 micron per layer, and the light spot spacing is smaller than 1 micron;
step S3: and (3) injection molding production, namely performing injection molding on the PC + ABS or PMMA + ASA material by using an injection molding machine, wherein the cavity mold temperature is higher than 80 ℃.
As a further improvement of the present invention, in step S2, the 3D model of the mold is scanned reversely before the pattern is engraved, the 3D model is compared with the real object and corrected, and the dermatoglyph surface continues to be marked with color.
In a further improvement of the present invention, in step S1, the die uses a steel material having a hardness greater than HRC 48.
As a further improvement of the present invention, in step S3, the cavity mold temperature is greater than 120 ℃.
The invention has the beneficial effects that: the manufacturing method of the highlight part is lower in manufacturing cost, shorter in manufacturing period, simpler to manufacture, high in production effect and better in stability, and the appearance effect of the produced product is better.
Drawings
FIG. 1 is a flow chart of a method for manufacturing a high-gloss part according to the present invention.
Detailed Description
As shown in FIG. 1, the present invention discloses a method for manufacturing a high-gloss component.
The invention provides a manufacturing method of a highlight part, which comprises the following steps:
step S1: manufacturing a mould, namely using steel with the hardness of more than HRC44 (the Rockwell hardness is 44) to integrally polish the surface of a mould cavity of the mould to more than 10000# diamond gypsum;
step S2: carving patterns, namely carving preset texture patterns on the die cavity by using a laser carving machine, wherein the feeding amount of laser processing is 1 micron per layer, and the light spot spacing is smaller than 1 micron;
step S3: and (3) injection molding production, namely performing injection molding on the PC + ABS or PMMA + ASA material by using an injection molding machine, wherein the cavity mold temperature is higher than 80 ℃.
The texture patterns are engraved on the surface of the die cavity, so that the brightness of the positions where the patterns are engraved is lower than that of the positions where the patterns are not engraved, the brightness visual effect of the highlight position of the highlight piece can be improved through light-dark contrast, the polishing requirement in the die cavity can be reduced, the die processing period is shortened, the surface of the highlight piece is divided into a highlight area with higher brightness and a pattern area with lower brightness, the requirement on the mirror surface is reduced, rapid cooling and rapid heating are not needed, rapid cooling and rapid heating equipment is not needed to be additionally configured, the investment cost of the equipment is reduced, rapid cooling and rapid heating are not needed, the production efficiency is improved, the service life of the die is prolonged, frequent maintenance is not needed, and the production stability is improved. Because the requirement for the mirror surface reduces, it does not need the dustless environment of moulding plastics of strict closure, the place utilization ratio improves greatly, in addition, can additionally increase the design element on the highlight face, the product level has been richened, the product differentiation degree has been improved, owing to set up laser engraving's texture pattern, its texture pattern department can be a little more than the highlight face, the protection highlight region that can be better, be difficult for being infected with the fingerprint, laser texture pattern scratch resistance is good, need not spray paint aftertreatment, part cost and interior decoration VOC (volatile organic compound) have been reduced, and is more environment-friendly.
In this technical solution, in step S2, the 3D model of the mold is scanned in reverse before the pattern is engraved, the 3D model is compared with the real object and corrected, and the dermatoglyph surface continues to be color-labeled, thereby ensuring the processing accuracy.
In the technical scheme, in the step S1, the die uses steel with hardness greater than HRC48, so that the surface hardness of the die is improved, and no separate plating treatment is required, thereby reducing the cost and the processing procedures.
In the technical scheme, in the step S3, the cavity mold temperature is higher than 120 ℃, so that the injection molding effect is improved.
The manufacturing method of the highlight part is lower in manufacturing cost, shorter in manufacturing period, simpler to manufacture, high in production effect and better in stability, and the appearance effect of the produced product is better.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (4)
1. A method for manufacturing a highlight part is characterized by comprising the following steps:
step S1: manufacturing a mould, wherein the mould is made of steel with the hardness of more than HRC44, and the surface of a mould cavity of the mould is integrally polished to be more than 10000# diamond gypsum;
step S2: carving patterns, namely carving preset texture patterns on the die cavity by using a laser carving machine, wherein the feeding amount of laser processing is 1 micron per layer, and the light spot spacing is smaller than 1 micron;
step S3: and (3) injection molding production, namely performing injection molding on the PC + ABS or PMMA + ASA material by using an injection molding machine, wherein the cavity mold temperature is higher than 80 ℃.
2. The method for manufacturing a highlight part according to claim 1, wherein: in step S2, the 3D model of the mold is scanned in the reverse direction before the pattern is engraved, the 3D model is compared with the real object and corrected, and the dermatoglyph surface continues to be color-labeled.
3. The method for manufacturing a highlight part according to claim 1, wherein: in step S1, a steel material having a hardness greater than HRC48 is used as the mold.
4. The method for manufacturing a highlight part according to claim 1, wherein: in the step S3, the cavity temperature is greater than 120 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011047956.9A CN112297330A (en) | 2020-09-29 | 2020-09-29 | Manufacturing method of highlight part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011047956.9A CN112297330A (en) | 2020-09-29 | 2020-09-29 | Manufacturing method of highlight part |
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| Publication Number | Publication Date |
|---|---|
| CN112297330A true CN112297330A (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011047956.9A Pending CN112297330A (en) | 2020-09-29 | 2020-09-29 | Manufacturing method of highlight part |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114589506A (en) * | 2022-03-31 | 2022-06-07 | 上汽通用五菱汽车股份有限公司 | False suture die machining process |
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| US20090181214A1 (en) * | 2006-05-12 | 2009-07-16 | Shih-Sheng Yang | Fastener structure with a fine pattern on a surface thereof |
| EP2199054A1 (en) * | 2008-12-19 | 2010-06-23 | Ju Teng International Holdings Ltd. | Method of combining laser-engraving and in-mold decoration techniques to laser-engrave pattern on plastic product and the product thereof |
| CN101913225A (en) * | 2010-08-23 | 2010-12-15 | 天津三星光电子有限公司 | Spraying-free high-surface gloss traceless injection molding process for rear cover of digital camera |
| CN103112115A (en) * | 2013-02-27 | 2013-05-22 | 李炳均 | Machining method for generating high-precision highlight anti-fake characters in injection molding mode |
| CN106696313A (en) * | 2016-12-08 | 2017-05-24 | 南宁星焱科技有限公司 | First-coat-free manufacturing method of automobile lamp reflector |
| CN108213717A (en) * | 2017-12-26 | 2018-06-29 | 模德模具(东莞)有限公司 | The method of laser engraving mould cavity curved surface texture |
| CN108555444A (en) * | 2017-12-26 | 2018-09-21 | 模德模具(东莞)有限公司 | The method that die surface luminosity is adjusted based on laser-engraving technique |
| WO2018208126A1 (en) * | 2017-05-12 | 2018-11-15 | 유진레이델 주식회사 | Automobile decoration panel and method for manufacturing same |
-
2020
- 2020-09-29 CN CN202011047956.9A patent/CN112297330A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090181214A1 (en) * | 2006-05-12 | 2009-07-16 | Shih-Sheng Yang | Fastener structure with a fine pattern on a surface thereof |
| EP2199054A1 (en) * | 2008-12-19 | 2010-06-23 | Ju Teng International Holdings Ltd. | Method of combining laser-engraving and in-mold decoration techniques to laser-engrave pattern on plastic product and the product thereof |
| CN101913225A (en) * | 2010-08-23 | 2010-12-15 | 天津三星光电子有限公司 | Spraying-free high-surface gloss traceless injection molding process for rear cover of digital camera |
| CN103112115A (en) * | 2013-02-27 | 2013-05-22 | 李炳均 | Machining method for generating high-precision highlight anti-fake characters in injection molding mode |
| CN106696313A (en) * | 2016-12-08 | 2017-05-24 | 南宁星焱科技有限公司 | First-coat-free manufacturing method of automobile lamp reflector |
| WO2018208126A1 (en) * | 2017-05-12 | 2018-11-15 | 유진레이델 주식회사 | Automobile decoration panel and method for manufacturing same |
| CN108213717A (en) * | 2017-12-26 | 2018-06-29 | 模德模具(东莞)有限公司 | The method of laser engraving mould cavity curved surface texture |
| CN108555444A (en) * | 2017-12-26 | 2018-09-21 | 模德模具(东莞)有限公司 | The method that die surface luminosity is adjusted based on laser-engraving technique |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114589506A (en) * | 2022-03-31 | 2022-06-07 | 上汽通用五菱汽车股份有限公司 | False suture die machining process |
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Application publication date: 20210202 |
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