Laser machining method and system of surface composite micro-structure of nodular cast iron material

A nodular cast iron and surface composite technology, which is applied in laser welding equipment, metal processing equipment, cleaning methods and appliances, etc., can solve the problems of the development limitation of composite micro-textured surface technology, the inability to prepare multiple sizes, and low processing efficiency. , to achieve the effect of eliminating original scratches and microcracks, low cost, and eliminating microcracks

Inactive Publication Date: 2020-08-25
SHANDONG UNIV OF TECH
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, laser processing technology cannot produce composite micro-textured arrays of various sizes in one go and continuously.
For composite micro-textured surfaces, the current method of laser processing is multiple proces

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Laser machining method and system of surface composite micro-structure of nodular cast iron material
  • Laser machining method and system of surface composite micro-structure of nodular cast iron material
  • Laser machining method and system of surface composite micro-structure of nodular cast iron material

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0015] Example 1.

[0016] Reference figure 1 : Laser processing system for composite micro-texture processing on the surface of nodular cast iron materials. It is a processing system with focusing lens, including laser [1], photoelectric shutter [2], beam expander [3], mirror [4], and computer control system [5], focusing lens [6], CCD[7], workpiece [8], translation stage [9] and fixture [10]. The computer control system [5] is connected to the laser [1], photoelectric shutter [2], CCD [7] and the displacement stage [9] through lines.

[0017] The laser processing method of composite micro-texturing on the surface of nodular cast iron material includes the following steps.

[0018] (1) Prepare the workpiece [8]. The workpiece material is QT900-5. First, sand the surface with sandpaper to make the surface free of burrs and smooth. Use acetone, ethanol, and water to clean ultrasonically for 1-3 minutes each to make the surface free of oil and particles.

[0019] (2) Use a fixture [1...

Example Embodiment

[0022] Example 2.

[0023] Reference figure 2 : Laser processing system for composite micro-texture processing on the surface of nodular cast iron materials. It is a processing system with focusing lens, including laser [1], photoelectric shutter [2], beam expander [3], mirror [4], and computer control system [5], CCD [7], workpiece [8], displacement stage [9], scanning galvanometer [11] and f-θ mirror [12]. The computer control system [5] is connected to the laser [1], photoelectric shutter [2], CCD [7], displacement stage [9], and scanning galvanometer [11] through lines.

[0024] The laser processing method of composite micro-texturing on the surface of nodular cast iron material includes the following steps.

[0025] (1) Prepare the workpiece [8]. The material of the workpiece [8] is QT900-5. First, sand the surface with sandpaper to make the surface free of burrs and smooth. Use acetone, ethanol, and water to clean ultrasonically for 1-3 minutes each to make the surface free ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a laser machining method and system of a surface composite micro-structure of a nodular cast iron material and belongs to the technical field of laser machining. The laser machining method and system utilize the feature that spherulitic graphite is randomly and evenly distributed in cast iron, and obtain micro-pit arrays in distribution of multiple diameters and depths through ablation of the spherulitic graphite; by adjusting the laser parameters, the micro-pit distribution of the ideal dimension proportion is obtained; and meanwhile, by means of the feature of a laserremelting technology, a surface of a lower roughness is obtained on the peripheral region of the micro-pits, and micro-cracks, scratches and other defects on the original material surface are eliminated. The laser machining method can achieve continuous one-time machining of the composite micro-structure surface, and eliminates the original scratches, micro-cracks and other defects of the materialduring machining at the same time. The prepared composite micro-structure surface has a low friction coefficient and high anti-wear performance. The laser machining method and system of the surface composite micro-structure of the nodular cast iron material has the features of being high in efficiency and low in cost and can achieve assembly line production.

Description

technical field [0001] The invention relates to a method and a processing system for laser processing the compound microtexture on the surface of ductile iron materials, belonging to the technical field of laser processing. Background technique [0002] The use of laser processing technology to prepare micro-textures is one of the methods to improve friction and wear performance. Micro-texture arrays such as micro-pits, micro-grooves, and micro-protrusions can be prepared on the surface of materials by laser processing. The prepared micro-textured array can reduce the friction coefficient and improve the anti-wear performance under dry friction, starved oil lubrication and fluid lubrication conditions. At present, a large number of studies have reported the use of laser processing technology to prepare single-size micro-textured surfaces. The reported surface texture types include regular hexagonal micro-convexes, square convex bodies, circular pits, square pits, and paralle...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B23K26/0622B23K26/064B23K26/082B23K26/60B23K26/70C22C37/04B08B3/12
CPCB08B3/12B23K26/0643B23K26/0648B23K26/0622B23K26/082B23K26/60B23K26/702C22C37/04
Inventor 王志文郑宏宇袁伟丛建臣郭前建张立国张磊安
Owner SHANDONG UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap