Solution-aging Integrated Forming Method of Friction Stir Welded Tailored Blanks

A technology of friction stir welding and solution aging, applied in welding equipment, non-electric welding equipment, manufacturing tools, etc., can solve problems such as abnormal growth of grains in tailor-welded joints, and achieve improved fuel economy, formability and Mechanical properties, the effect of reducing investment

Active Publication Date: 2019-07-23
WUHAN UNIV OF TECH
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method of integrated solid solution aging forming for friction stir welded tailor welded blanks. By using this method, the integrated solid solution aging forming process can be applied under the premise of preventing the grain growth of tailor welded joints from abnormal growth. FSW

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
  • Solution-aging Integrated Forming Method of Friction Stir Welded Tailored Blanks
  • Solution-aging Integrated Forming Method of Friction Stir Welded Tailored Blanks
  • Solution-aging Integrated Forming Method of Friction Stir Welded Tailored Blanks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Example 1: Using the method of the present invention to stamp and form tailor-welded blanks with different thicknesses

[0044] First put the aluminum alloy sheets 2 and 3 of different thickness and heterogeneity into the heating furnace 1 for solid solution treatment, and then use the rotating and horizontal movement of the stirring head 4 of friction stir welding to dissolve the different thickness and the same The high-quality aluminum alloy sheets are connected together, and then the welded friction stir welded blank 7 is heated to the solid solution temperature and immediately moved to the punching machine 5, and the welded blank 7 is pressed down by the punch 6 with the cooling water channel. The welding plate 7 is pressed into the die 8 with a cooling water channel for stamping deformation and in-mold quenching at the same time to obtain a deformed product 9 after stamping deformation, and finally put the deformed product 9 of stamping deformation into an aging fu...

Embodiment 2

[0045] Example 2: Using the method of the present invention to stamp and form tailor-welded blanks of different thickness and homogeneity

[0046] First put the aluminum alloy sheets 2 and 3 of different thickness and homogeneity into the heating furnace 1 for solid solution treatment, and then adopt the rotating motion and horizontal motion of the stirring head 4 of friction stir welding The high-quality aluminum alloy sheets are connected together, and then the welded friction stir welded blank 7 is heated to the solid solution temperature and immediately moved to the punching machine 5, and the welded blank 7 is pressed down by the punch 6 with the cooling water channel. The welding plate 7 is pressed into the die 8 with a cooling water channel for stamping deformation and in-mold quenching at the same time to obtain a deformed product 9 after stamping deformation, and finally put the deformed product 9 of stamping deformation into an aging furnace 10 for artificial aging to...

Embodiment 3

[0047] Example 3: Using this process to stamp and form tailor-welded blanks with the same thickness and different types

[0048] Firstly put the aluminum alloy sheets 2 and 3 of the same thickness and heterogeneity into the heating furnace 1 for solid solution treatment, and then use the rotational movement and horizontal movement of the stirring head 4 of the friction stir welding The high-quality aluminum alloy sheets are connected together, and then the welded friction stir welded blank 7 is heated to the solid solution temperature and immediately moved to the punching machine 5, and the welded blank 7 is pressed down by the punch 6 with the cooling water channel. The welding plate 7 is pressed into the die 8 with a cooling water channel for stamping deformation and in-mold quenching at the same time to obtain a deformed product 9 after stamping deformation, and finally put the deformed product 9 of stamping deformation into an aging furnace 10 for artificial aging to obtain...

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 solution treating and aging integrated forming method for a friction stir welding tailor-welded blank. The method comprises the following steps of (1) solid solution and heat preservation, specifically, solid solution treatment and heat preservation are conducted on aluminum alloy plates; (2) friction stir welding tailor-welded blank obtaining, specifically, the two aluminum alloy plates obtained after solid solution are welded together through friction stir welding equipment, and the friction stir welding tailor-welded blank is obtained; (3) thermal deforming and in-mold quenching, specifically, the friction stir welding tailor-welded blank is heated to the solid solution temperature and then immediately transferred into a mold with a water way for stamping, and meanwhile in-mold quenching is conducted; and (4) aging treatment, specifically, a product obtained after deforming is transferred into an aging furnace for aging treatment. By adopting the method, the problem that abnormal grains of the friction stir welding tailor-welded blank grow due to solid solution treating can be prevented, and the forming property and the mechanical property of the friction stir welding tailor-welded blank are improved; meanwhile, capital input in the early stage can be reduced, the production efficiency can be improved, and application of the aluminum alloy friction stir welding tailor-welded blank is promoted.

Description

technical field [0001] The invention relates to a manufacturing and forming method of a metal sheet, in particular to a method for forming a friction stir welded tailor welded blank with solid solution and aging integration, and belongs to the technical field of shaping processing. Background technique [0002] With the rapid development of the automobile industry, the problems of environmental pollution and resource shortage have become increasingly prominent, and resource conservation and pollution reduction have become two major problems that the automobile industry needs to solve urgently. Focusing on sustainable development, the task of reducing vehicle quality, reducing fuel consumption and reducing emission pollution is particularly urgent. Vehicle lightweight technology is one of the important ways to solve these problems. Studies have shown that if the weight of the vehicle is reduced by 10%, the fuel efficiency can be increased by 6% to 8%; the emission can be redu...

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 & AuthorityPatents(China)
IPC IPC(8): C22F1/04B23K20/12
CPCB23K20/122C22F1/002C22F1/04
Inventor胡志力华林李锦
OwnerWUHAN UNIV OF TECH