Hot-working die surface multipoint combination type bionic machining device and strengthening repair method

A technology of hot work die and processing equipment, applied in metal processing equipment, welding equipment, laser welding equipment and other directions, can solve the problems of reduced cold and heat fatigue resistance, mold brittle fracture, etc., to achieve the effect of improving processing efficiency

Active Publication Date: 2015-06-03
江苏拜欧尼克智能科技有限公司
View PDF7 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hardness of the module is increased, and the cold and heat fatigue resistance of the mold is reduced, which causes thermal fatigue cracks to be generated prematurely on the surface of the mold cavity. Due to the low fracture toughness of steel, the thermal fatigue cracks may reach a critical size when they are small. Dimensions, and then the rapid expansion of instability leads to brittle fracture of the mold
At present, the method of laser bionic processing can greatly improve the

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
  • Hot-working die surface multipoint combination type bionic machining device and strengthening repair method
  • Hot-working die surface multipoint combination type bionic machining device and strengthening repair method
  • Hot-working die surface multipoint combination type bionic machining device and strengthening repair method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] According to the distribution of working stress and thermal fatigue on the surface of the hot working mold, the surface laser bionic strengthening is carried out on the parts prone to wear when the device embodiment of the present invention manufactures the hot working mold with the bionic reinforced unit body on the surface. Such as Figure 6 Shown is a set of forging dies for the production of an automobile part. On its surface, we conduct bionic laser treatment on five parts on its surface according to its stress and failure mode. The position of area I in the figure is mainly affected by mild impact wear and thermal fatigue. Therefore, the number of optical fiber laser output channels is selected as 1 during processing. The fiber laser head is clamped on the first laser head splint 5, and the mold can be placed on the ground. On or on the workbench 23 (the workbench 23 is still during processing), the selected parameters are current 100A, pulse width 10ms, frequency...

Embodiment 2

[0067] According to the distribution of working stress and thermal fatigue on the surface of the hot working mold, the surface laser bionic strengthening is carried out on the parts prone to wear when the device embodiment of the present invention manufactures the hot working mold with the bionic reinforced unit body on the surface. Figure 7 The mold in the forging mold is a typical automobile disc-shaped part production mold in the forging mold. According to the summary data of the experiment, a single-point energy density of 350J with a current of 120A, a pulse width of 8ms, a frequency of 4HZ, and a defocus of 5.5mm is used to vertically Scan the surface of the guide rail, the 3-way fiber laser head is clamped on the second laser head splint 6, the mold is placed on the workbench 23, the relative speed between the fiber laser head and the workbench is about 0.7mm / s, the distance between the fiber laser head and the mold The surface distance is 110mm; the formed unit body ha...

Embodiment 3

[0070] According to the distribution of working stress and thermal fatigue on the surface of the hot working mold, the surface laser bionic strengthening is carried out on the parts prone to wear when the device embodiment of the present invention manufactures the hot working mold with the bionic reinforced unit body on the surface. Figure 8 The mold in the forging mold is used to manufacture the automotive connecting rod parts in the forging mold. From the figure, it can be seen that the part that needs to be processed is divided into 4 parts, the positions are different, and the heights are also quite different. The force and wear of the four parts are also different. During processing, process according to the following steps:

[0071] 1. According to the damage mode of the parts, four areas are selected as the treatment areas for laser processing, which are the areas I, II, III, and IV shown in the figure. According to the different wear modes of the 4 areas, the paramete...

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 relates to a hot-working die surface multipoint combination type bionic machining device. A computer of the device is connected with a servo control system of a six-degree-of-freedom robot, a laser and a rotary serve device of a rotary workbench; the laser comprises a plurality of optical fiber laser heads; a first laser head clamp plate is fixedly mounted on the rotating head of the six-degree-of-freedom robot; a second laser head clamp plate is mounted above the rotating workbench. Working modes of the rotating workbench and movement curves of the laser heads can be arranged according to the shape and area of a to-be-machined area on a die, and laser parameters, number of laser paths, light splitting modes and the like are designed according to strength requirements on surface materials; output energy of laser as well as the number of output light paths are combined with the movement curves, complexity of processing paths is guaranteed, and requirements of different positions and different energy during machining are guaranteed; the workbench or the die on the ground can be independently machined, two dies can be machined simultaneously, efficiency is improved, and cost is saved.

Description

technical field [0001] The invention relates to a multi-point combined bionic processing equipment and a surface processing method of a hot-working mold, which are used for processing and repairing hot-working molds with complex and diverse surfaces that fail under thermal fatigue wear and erosion wear conditions . Background technique [0002] At present, hot work molds are mainly used for hot deformation processing and die casting. Its working characteristic is to make the metal material produce a certain plastic deformation above the recrystallization temperature, or to make the high-temperature liquid metal cast into shape. In order to obtain parts or precision blanks of the desired shape. The wear in the cavity of the hot work die is different from the formation factors of the wear of the cold work die. The wear of hot die forging is mainly due to the fact that the friction between the mold and the processed red hot metal billet is not lubricated, and is oxidized by ...

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): B23K26/34B23K26/08B23K26/70
CPCB23K26/08B23K26/34
Inventor 周倜周宏张鹏庞作波
Owner 江苏拜欧尼克智能科技有限公司
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