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CN-121989825-A - Exterior trim part identification method and exterior trim part identification structure based on laser carving process

CN121989825ACN 121989825 ACN121989825 ACN 121989825ACN-121989825-A

Abstract

The application discloses an exterior trim part identification method and an exterior trim part identification structure based on a laser carving process. The method comprises the steps of obtaining a base material by adopting an injection molding process according to actual demands, using ultraviolet laser as a laser source, adopting a laser carving technology according to the actual visual effect demands of a mark, laser carving on the outer surface of the base material to form a mark shape to obtain the laser carving base material, wherein the mark shape has gray scale and contrast corresponding to the actual visual effect demands, the actual visual effect demands comprise two-dimensional visual effect or three-dimensional visual effect, carrying out ion flame treatment on the outer surface of the laser carving base material on which the mark shape is formed, and then spraying hardening paint to cover the surface of the mark shape to form the hardening paint layer. The method can meet the requirements of different visual effects, can greatly realize the flexible and customizable manufacturing of the exterior trim part identification structure, and the obtained exterior trim part identification structure has excellent exquisite sensing capability, weather resistance and durability.

Inventors

  • WANG GUIYOU
  • MO KAI
  • XIONG FEI
  • WANG SHILEI
  • ZENG RUI

Assignees

  • 曼德电子电器有限公司

Dates

Publication Date
20260508
Application Date
20260331

Claims (10)

  1. 1. The exterior trimming part identification method based on the laser carving process is characterized by comprising the following steps of: according to actual requirements, an injection molding process is adopted to obtain a base material; The method comprises the steps of taking ultraviolet laser as a laser source, adopting a laser carving technology according to the shape of a target mark and the actual visual effect requirement, and carrying out laser carving on the outer surface of a base material to form the mark shape by regulating and controlling the technological parameters of laser carving, so as to obtain the laser carving base material, wherein the mark shape has gray scale and contrast corresponding to the actual visual effect requirement; and carrying out ion flame treatment on the outer surface of the laser carving substrate, which is laser carving and formed with the mark shape, and then spraying hardening paint to cover the surface of the mark shape to form the hardening paint layer.
  2. 2. The method for marking exterior trim parts according to claim 1, wherein when the actual visual effect requirement of the marking is a two-dimensional visual effect, the gray value of the visual effect of the marking shape is adjusted to 18-40 and the contrast ratio is adjusted to 18-40 by adjusting and controlling the technological parameters of laser engraving.
  3. 3. The exterior trimming part marking method according to claim 1, wherein when the actual visual effect requirement of the marking is a three-dimensional visual effect, the gray scale of the visual effect of the marking shape is adjusted to 40-60 and the contrast is adjusted to 40-60 by adjusting and controlling the technological parameters of laser engraving.
  4. 4. The method for marking exterior trimming parts according to claim 1, wherein the laser engraving process parameters comprise 20% -40% of power, 1000% -1500 mm/s of speed, 50 KHz-150 KHz of frequency and 35% -100 of beam spot.
  5. 5. The exterior trim piece marking method according to claim 1, wherein the laser light source is an ultraviolet laser light having a wavelength of 355 nm.
  6. 6. The method for marking the exterior trimming part according to claim 1, wherein the ion flame treatment process is characterized in that oxygen is used as an air source under a vacuum/normal pressure environment, the power is 100-990W, the treatment distance between a gun head and the outer surface of the laser carving substrate is 5 mm-15 mm, the treatment speed is 10-300 mm/s, the air source flow is 5L/min-20L/min, and the treatment temperature is 50-80 ℃.
  7. 7. The exterior trim piece marking method according to claim 1, wherein the hardened paint layer is performed by repeating a spraying process at least twice, and each of the spraying processes includes a spraying process and a curing process; The technological parameters of the spraying treatment are that the flow rate of a nozzle is 30 cm/s-60 cm/s, the air pressure of the nozzle is 15-25 MPa, and the treatment distance between the nozzle and the outer surface of the laser carving substrate is 25-35 cm; the curing treatment comprises an infrared curing treatment and an ultraviolet curing treatment which are sequentially carried out; the temperature of the infrared curing treatment is 65-85 ℃ and the treatment time is 2-6 min; The UV energy of the ultraviolet curing treatment is 1000mJ/cm 2 ~12000mJ/cm 2 , and the light intensity is >200mW/cm 2 .
  8. 8. The exterior trim piece identification method of claim 1, wherein the hardened paint layer has a total thickness of h H and h H satisfies 8 μm less than or equal to h H μm less than or equal to 16 μm.
  9. 9. The exterior trim part identification structure is characterized in that the exterior trim part identification structure is prepared by the method according to any one of claims 1-8.
  10. 10. The exterior trim piece identification structure of claim 9, comprising: A base material layer (100); The marking layer (200) is positioned on the substrate layer (100) and provided with a marking shape formed by laser carving, wherein the marking shape comprises at least one of patterns, characters or codes, and the marking shape has a two-dimensional visual effect or a three-dimensional visual effect; a stiffening lacquer layer (300) covering the marking layer (200) and the substrate layer (100).

Description

Exterior trim part identification method and exterior trim part identification structure based on laser carving process Technical Field The application relates to the technical field of automobile exterior trimming parts, in particular to an exterior trimming part identification method and an exterior trimming part identification structure based on a laser carving process. Background The host factory identifier refers to a special identification mark, comprising symbols, patterns, codes and the like, marked by a host factory (whole vehicle manufacturing enterprise) for a product under a flag, a matched set, related parts, and the like, is mainly used for distinguishing the attribution of the product, tracing production information, managing and controlling a supply chain, is a core identifier for identifying a whole vehicle factory to which the product belongs in an automobile industry chain, and is also commonly called a whole vehicle factory identifier, a host factory LOGO/mark and an original factory identifier. At present, the main machine factory mark is mostly of a split type structure which is independently installed on the bumper, so that various molds, tools and the like are needed to be adopted when the main machine factory mark is prepared, the molds and the tools are more in early investment, and the investment cost is high. Moreover, the preparation process comprises a plurality of procedures such as injection molding, electroplating, silk screen printing, paint spraying and the like, the preparation procedures are complicated, and once any procedure is problematic, the quality of a finished product can be influenced, so that the rejection rate of the finished product is high. In addition, the flexibility of the process is poor due to the limitation of the mould, and the process is difficult to adjust according to the actual requirements of the end customer. In view of the above, the application provides an exterior trimming part identification method and an exterior trimming part identification structure based on a laser carving process. Disclosure of Invention Based on the problems, the application aims to provide an exterior trim part identification method and an exterior trim part identification structure based on a laser carving process. In a first aspect, the application provides an exterior trim part identification method based on a laser engraving process. The application discloses an exterior trimming part identification method based on a laser carving process, which comprises the following steps of: And step 1, preparing a substrate, namely adopting an injection molding process according to actual requirements to obtain the substrate. It should be noted that the present application is not limited to a specific injection molding process, and the corresponding mold may be selected according to the actual marking position to obtain the substrate structure of the actually required shape. Step 2, laser carving treatment: The method comprises the steps of taking ultraviolet laser as a laser source, and carrying out laser engraving on the outer surface of a base material to form a mark shape according to the actual visual effect requirement of the mark by adopting a laser engraving technology, so as to obtain the laser engraving base material, wherein the actual visual effect requirement comprises a two-dimensional visual effect or a three-dimensional visual effect, and the three-dimensional visual effect comprises a common three-dimensional visual effect and a three-dimensional color-changing visual effect. The application uses ultraviolet laser as a laser source, and can realize the adjustment of the gray scale and the contrast of the formed identification shape by adjusting and controlling the technological parameters of laser carving according to the actual visual effect requirement, thereby forming the identification shape with corresponding visual effect. Step3, spraying hardening paint: and carrying out ion flame treatment on the outer surface of the laser carving substrate, which is laser carving and formed with the mark shape, and then spraying hardening paint to cover the surface of the mark shape to form the hardening paint layer. Based on the scheme, the ultraviolet laser is used as a laser source, gray scale and contrast of the formed identification shape can be adjusted according to actual visual effect requirements by adjusting and controlling technological parameters of laser carving, so that the identification shape with corresponding visual effect is formed, a layer of hardening paint layer is formed on the surfaces of the base material and the identification shape, the formed identification shape is prevented from directly leaking outwards through the formation of the hardening paint layer, the protection effect on the identification shape can be improved, and meanwhile, the exquisite perceptibility of the identification shape is improved. In addition, the method of sprayi