Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Laser and blast compound forming method based prestress force

A composite forming and prestressing technology, used in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of difficult manufacturing automation, leaving damage on the surface of the workpiece, etc., to overcome the damage or even damage of the formed parts, deformation resistance The effect of reducing and improving the forming effect

Inactive Publication Date: 2009-10-14
INST OF MECHANICS CHINESE ACAD OF SCI
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, "manual hammering" and "pimp whipping" often rely on the experience of the processor, and it is not easy to realize manufacturing automation
In addition, "manual hammering" and "pimp whipping" are likely to leave damage on the surface of the workpiece and become a safety hazard

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 and blast compound forming method based prestress force

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] A laser and shot-peening composite forming method based on prestress in the present invention can be divided into parameter simulation preparation process, processing process and feedback adjustment process, wherein the parameter simulation process is specifically: first establish the mechanical properties and thermal properties of the forming material, etc. Relevant performance parameters and the structure, size and shape database of formed parts, as well as the response law of materials under the action of multi-physics fields (mechanical load, thermal load), establish a computing platform and an expert system. And use the computing platform to pre-judge the virtual processing of the blank, the position that is difficult to form and needs laser processing, the laser processing parameters, and the shot peening processing area and parameters, that is, the laser technology is obtained through the simulation of the processing process. Parameters, areas and trajectories tha...

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 discloses a composite forming method of laser and shot peening on the basis of pre-stress, which is characterized in that virtual process is firstly carried out by a blank piece so as to gain all parameters in the machining process; during the processing, a temperature field is formed at a difficult-deformation area by the laser; when the laser is used for scanning, the local shot peening disposal leads the surface at the other side of the stiffener to generate tensile plastic deformation; when the method of the invention is adopted for forming, the thermal energy converted by the laser energy can reduce the deformation resistance of the material in the laser function area and lead the surface to generate larger plastic deformation when undergoing shot peening formation and improve the forming quantity by raising the whole processing temperature of the blank.

Description

technical field [0001] The invention relates to the field of sheet metal forming, in particular to a laser and shot-peening composite forming method based on prestress. Background technique [0002] There are such types of sheet metal parts in engineering, such as aircraft skin and overall (integrated skin and support ribs) panel parts, rocket integral fuel tank parts, ship side and deck parts, and car coverings, etc. , It needs to be formed by bending or rolling (another form of bending, the formed part can be rotated with the support roll while being bent). [0003] Bending forming is the main method of integral panel forming at present. The method utilizes a three-point bending method to form an integral wall plate, and the wall plate is supported by two support points, and a loading device controls a pressure head to load on a predetermined position on the wall plate. The siding deforms plastically under the load to achieve the desired geometry. Press bending forming ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B21D31/00B21D31/06G06F17/50
Inventor 彭青陈光南罗耕星吴臣武王秀凤
Owner INST OF MECHANICS CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com