Laser method for removing paint on autobody

A car body and paint technology, which is applied in the laser field of removing car body paint, can solve the problems that the polishing effect cannot be guaranteed, needs to be cleaned, and labor costs increase, so as to achieve the effect of avoiding waste of water resources and good adhesion

Active Publication Date: 2015-11-18
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The whole process has the following defects: (1) The process is cumbersome, time-consuming and labor-intensive; (2) Manual grinding cannot ensure that the surface of the car body is evenly stressed, resulting in an unguaranteed grinding effect; (3) Cleaning is required during the grinding process, resulting in waste of water resources; (4) Labor costs continue to increase

Method used

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  • Laser method for removing paint on autobody
  • Laser method for removing paint on autobody
  • Laser method for removing paint on autobody

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) Cut and damage the painted workpiece;

[0041] (2) Take the workpiece to be repaired, place it in a pre-prepared surface active solution, use ultrasonic vibration, wash it with deionized water, and air dry it.

[0042] (3) Place the sample on the worktable of Edgewave's PX series nanosecond laser processing system (using green light configuration with a wavelength of 532nm), set the laser power to 20W, the frequency to 10KHz, the current to 60A, and the scanning speed to 1000mm / s , the number of repetitions is n=10 times, the size of the scanning area is set to 5mm×5mm, and the laser system is started to start processing.

[0043] (4) Use a small suction device to remove particulate matter on the surface of the workpiece, remove the processed workpiece, and the surface of the workpiece will be roughened.

Embodiment 2

[0045] (1) Cut and damage the painted workpiece;

[0046] (2) Take the workpiece to be repaired, place it in a pre-prepared surface active solution, use ultrasonic vibration, wash it with deionized water, and air dry it.

[0047] (3) Place the sample on the worktable of Edgewave's PX series nanosecond laser processing system (using a green light configuration with a wavelength of 532nm), set the laser power to 20W, the frequency to 10KHz, the current to 60A, and the scanning speed to 500mm / s , the number of repetitions is n=10 times, the size of the scanning area is set to 5mm×5mm, and the laser system is started to start processing.

[0048] (4) Use a small suction device to remove particulate matter on the surface of the workpiece, remove the processed workpiece, and the surface of the workpiece will be roughened.

Embodiment 3

[0050] (1) Cut and damage the painted workpiece;

[0051] (2) Take the workpiece to be repaired, place it in a pre-prepared surface active solution, use ultrasonic vibration, wash it with deionized water, and air dry it.

[0052] (3) Place the sample on the worktable of Edgewave's PX series nanosecond laser processing system (using green light configuration with a wavelength of 532nm), set the laser power to 20W, the frequency to 10KHz, the current to 60A, and the scanning speed to 1000mm / s , the number of repetitions is n=10 times, adjust the galvanometer to make the laser output a line light source, set the scanning area size to 5mm×5mm, start the laser system to start processing.

[0053] (4) Use a small suction device to remove particulate matter on the surface of the workpiece, remove the processed workpiece, and the surface of the workpiece will be roughened.

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PUM

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Abstract

A laser method for removing a paint on an autobody comprises the following four steps: step 1: performing cutting to obtain an impaired painted workpiece; step 2: performing cleaning and air-drying to obtain a clean painted workpiece, particularly, sequentially cleaning the surface of the painted workpiece with a chemical solution and deionized water and performing air-drying; step 3: performing laser processing to obtain a fresh workpiece from which the paint is removed, particularly, placing the painted workpiece on a worktable of a nanosecond laser processing system, setting laser parameters, starting up the laser processing system, utilizing a vibrating mirror to scan to enable laser to scan a workpiece board at a pre-determined speed to obtain a fresh section from which the paint is removed; and step 4: performing cleaning simply to obtain a surface-textured end-product workpiece to be painted, particularly, sucking dust from the surface to obtain the surface-textured end-product workpiece to be painted. The laser method realizes semi-automatic removal of the paint on the autobody and can effectively reduce the auto beautification and maintenance cost while improving the efficiency.

Description

technical field [0001] The invention relates to a laser method for removing paint on automobile bodywork. It is a method for processing and removing paint on an automobile body by using a nanosecond laser direct writing system. Efficient repair and remanufacturing field. Background technique [0002] As a new material processing method, laser is playing the role of an innovative pioneer. It represents the development direction of advanced manufacturing industry, greatly improves the technical level of traditional manufacturing industry, and brings product design, manufacturing technology and production concept of great change. As a new laser technology developed in the past ten years, laser cleaning technology is playing a more important role in more and more industries. Laser cleaning is a process that uses high-energy laser beams to irradiate the surface of a workpiece to instantly evaporate or peel off the dirt, rust or coating on the surface without changing or damagin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/00B23K26/60
CPCB23K26/00B23K2101/006
Inventor 管迎春孙汝剑
Owner BEIHANG UNIV
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