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

Preparation method of aluminum alloy panel for vehicle with both high strength and high forming property

An aluminum alloy sheet and formability technology, applied in the field of aluminum alloys, can solve problems such as unsatisfactory stamping formability and strength, and achieve the effect of promoting wide use, excellent stamping formability, and reducing production costs

Inactive Publication Date: 2018-05-18
UNIV OF SCI & TECH BEIJING
View PDF3 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies of the prior art, the present invention aims at problems such as the unsatisfactory stamping performance and strength of the current Al-Mg-Si-Cu alloys used for the outer panels of automobile bodies, and develops an aluminum alloy with both high strength and high formability Materials and their preparation methods

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
  • Preparation method of aluminum alloy panel for vehicle with both high strength and high forming property
  • Preparation method of aluminum alloy panel for vehicle with both high strength and high forming property
  • Preparation method of aluminum alloy panel for vehicle with both high strength and high forming property

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Implementation of Invention Alloy 1# and 2# adopt the following intermediate frequency induction melting and casting method. First, all pure aluminum is added to the crucible and melted. The temperature is controlled at 780-880°C, and then Al-20wt% Si and Al-50wt% Cu are successively added. , Al-20wt% Fe, Al-10wt% Mn master alloy, and use high power to melt and keep it warm for 5 to 10 minutes, then add pure Mg to the melt, and use high power to stir it completely to dissolve it, keep it warm for 5 minutes, and then Add micro-alloying element Ni to prevent Ni from sinking to the bottom, use high power for intermittent stirring, control the temperature at 830°C, and keep warm for 6 minutes; continue to remove slag after the melt cools to 740°C, add refining agent for degassing and refining; then Add Al-5wt%Ti-1wt%B grain refiner when the temperature of the melt is lowered to about 720°C and stir properly, and finally keep the temperature at this temperature for 10 minutes...

Embodiment 2

[0034] Implementation of invention alloys 3# and 4# are carried out by the following medium frequency induction melting and casting method, first all pure aluminum is added into the crucible and melted, the temperature is controlled at 780-880°C, and then Al-20wt% Si and Al-50wt% Cu are added successively , Al-20wt% Fe, Al-10wt% Mn master alloy, and use high power to melt it and keep it warm for 5-10 minutes, then add pure Zn and pure Mg to the melt, and use high power to stir it completely to dissolve it, keep it warm 8min, then add Ni, a microalloying element, to prevent Ni from sinking to the bottom, use high power for intermittent stirring, control the temperature at 850°C, and keep warm for 7min; continue to remove slag after the melt cools down to 740°C, and add refining agent for degassing Refining; then add Al-5wt%Ti-1wt%B grain refiner when the melt temperature is reduced to about 720°C and stir properly, and finally keep the temperature at this temperature for 10 minu...

Embodiment 3

[0036] Implementation of the invention Alloy 5# and 6# adopt the following intermediate frequency induction melting and casting method, first put all the pure aluminum into the crucible and melt it, the temperature is controlled at 780 ~ 880 ℃, then add Al-20wt% Si, Al-50wt% Cu successively , Al-20wt% Fe, Al-10wt% Mn master alloy, and use high power to melt and keep it warm for 5 to 10 minutes, then add pure Mg to the melt, and use high power to stir it completely to dissolve it, keep it warm for 5 minutes, and then Add micro-alloying element Ni to prevent Ni from sinking to the bottom, use high power for intermittent stirring, control the temperature at 870°C, and keep warm for 8 minutes; continue to remove slag after the melt cools to 740°C, add refining agent for degassing and refining; then Add Al-5wt%Ti-1wt%B grain refiner when the temperature of the melt is lowered to about 720°C and stir properly, and finally keep the temperature at this temperature for 10 minutes and ca...

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 preparation method of an aluminum alloy panel for a vehicle with both high strength and a high forming property and belongs to the technical field of aluminum alloys. By regulating and controlling nucleation, grow-up and distribution of casted progenetic phases by means of microalloying and being supplemented by regulation in a follow-up thermal processing course, the progenetic phases in an alloy matrix can be in approximately spherical uniformly dispersive distribution states, and positive influence is also generated on evolution of alloy tissues and textures in the follow-up thermal processing course by means of the progenetic phases with special distribution characteristics. The developed alloy panel is refined in structure, and the texture is remarkably weakened, so that an excellent stamping punching property is shown. The plastic strain ratio r which represents the stamping punching property can reach over 0.73 while deltar value is only -0.06. The developed aluminum alloy material with the high forming property and a preparation method thereof are quite suitable for manufacturing outer panels of an automotive body, in particular parts with complicated shapes with relatively high demands on stamping punching property, flanging property, paint bake hardenability increment and the like.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloys, and relates to a high-formability aluminum alloy material for automobiles and a preparation method thereof. It is especially developed for the special requirements of aluminum alloys for body outer panels in the automobile field on formability and anti-sag performance, which can ensure the aluminum The anisotropy of the alloy sheet is well controlled before forming, and has excellent stamping performance and high strength. Background technique [0002] With the continuous vigorous development of the automobile industry, automobile fuel consumption and environmental pollution are becoming more and more serious, automobile lightweight is one of the effective ways to solve the above energy and environmental problems, and aluminum alloy is the key material for automobile lightweight. Taking the typical Al-Mg-Si alloy as an example, due to its light weight, corrosion resistance, heat treatment...

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): C22C21/00C22C21/02C22C21/10C22C1/03C22F1/04C22F1/043C22F1/053
CPCC22C1/026C22C1/03C22C21/00C22C21/02C22C21/10C22F1/002C22F1/04C22F1/043C22F1/053
Inventor 郭明星袁波庄林忠李苗苗张济山
Owner UNIV OF SCI & TECH BEIJING
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