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

Prediction method of bending angle of titanium alloy laser bending forming part

A technology of bending forming and predicting methods, which is applied in metal processing, metal processing equipment, manufacturing tools, etc., and can solve problems such as poor bending angle accuracy

Inactive Publication Date: 2016-03-23
NORTHWESTERN POLYTECHNICAL UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to overcome the deficiencies of the poor accuracy of the existing bending angle prediction methods, the present invention provides a method for predicting the bending angle of titanium alloy laser bending forming parts

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
  • Prediction method of bending angle of titanium alloy laser bending forming part
  • Prediction method of bending angle of titanium alloy laser bending forming part
  • Prediction method of bending angle of titanium alloy laser bending forming part

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] The specific steps of the method for predicting the bending angle of titanium alloy laser bending forming parts of the present invention are as follows:

[0039] Take the prediction of bending angle of TC4 alloy laser bending forming parts as an example.

[0040] (1) Carry out wire cutting of the TC4 alloy plate in the supply state to obtain strip samples with a thickness of 0.8, 1, 1.5, 2.0mm, a width of 20, 30, 40, 50, 40mm, and a length of 50mm;

[0041] (2) Clean the TC4 alloy sample with absolute ethanol, and apply Ti-β coating on its cleaning surface;

[0042] (3) Fix the TC4 alloy plate on the fixture, perform laser scanning bending on the surface of the plate, air cool to room temperature after laser bending, and measure the maximum bending angle on the center line of the sample length direction after laser bending;

[0043] (3) The energy density (I, J / mm 2 ), sheet width (b, mm), sheet thickness (t, mm), scanning path curvature ( mm -1 ) for normalization...

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 prediction method of a bending angle of a titanium alloy laser bending forming part, so as to solve the technical problem that the accuracy of a predicted bending angle by the conventional bending angle prediction method is poor. The prediction method is characterized in that 12 membership functions and 81 fuzzy rules that are related to the energy density, the plate width, the plate thickness and the scan path curvature during titanium alloy laser bending forming are determined; a mathematical model of the bending angle during the titanium alloy laser bending forming is established; by employing titanium alloy laser bending forming experimental data, weight coefficients and weight numbers of the fuzzy rules are selected out, and are substituted into the mathematical model of the bending angle during the titanium alloy laser bending forming; and a prediction model of the bending angle during the titanium alloy laser bending forming is obtained. According to the prediction method, the maximum error between a predicted test sample result and an experimental result of the bending angle during TC4 alloy laser bending forming is less than 4%.

Description

technical field [0001] The invention relates to a method for predicting the bending angle of a part, in particular to a method for predicting the bending angle of a titanium alloy laser bending forming part. Background technique [0002] Titanium alloys have been widely used in aerospace and marine fields due to their excellent comprehensive properties. At present, large-scale titanium alloy linear bending parts and curved bending parts with large proportions are used in domestic aircraft, satellites, rockets and other equipment. Due to the poor plasticity of titanium alloys at room temperature, cold deformation is very difficult. Using heating deformation manufacturing technology requires the manufacture of a large number of high-temperature resistant molds and heating furnaces. The cycle is long, the cost is high, and the performance is difficult to guarantee. For large-scale thin-plate titanium alloy bending parts, it is more difficult to manufacture. Laser bending form...

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): B21C51/00
CPCB21C51/00
Inventor 李淼泉吴诗惇
Owner NORTHWESTERN POLYTECHNICAL UNIV
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