Drawing molding design method for controlling stamping deformation of tailor welded blanks with different thicknesses
A design method and technology of tailor-welded blanks, applied in the field of stamping of auto parts, can solve problems such as stamping deformation, and achieve the effect of reducing the area, eliminating the deformation of parts, and avoiding the interference between the sheet and the mold.
Active Publication Date: 2019-01-18
DONGFENG MOTOR CORP HUBEI
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Simple and effective solution to the problem of stamping deformation in the transition area of thick and thin sheet metal of unequal thickness tailor welded blanks
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments to facilitate a clear understanding of the present invention, but they do not limit the present invention.
[0022] like figure 1 As shown, in the prior art, generally in the stamping process of tailored welded blanks of unequal thickness, the gap between the punch 3 and the die 2 is the thin sheet material thickness t1 in the thin sheet area 1.5 of the mold, and the punch 3 and the die 2 The gap in the thick sheet area 1.1 of the mold is the thickness t2 of the thick sheet material. In this way, the gap in the corresponding mold area is too large, resulting in stamping deformation and affecting product quality.
[0023] The present invention is a drawing modeling design method for controlling the stamping deformation of tailor-welded blanks with unequal thickness, such as figure 2 — Figure 4 As shown, it includes the following step...
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
Login to View More Abstract
The invention relates to a drawing molding design method for controlling stamping deformation of tailor welded blanks with different thicknesses, and belongs to the technical field of automobile partstamping. The method comprises the following steps that an area between an initial position curve L1 of a tailor welding line of the two tailor welded blanks with different thicknesses before stampingand a final tailor welding line position curve L2 is divided into a thick plate material safety area body, a gap transition area body and a thin plate material buffering area body; the gap between aconvex die and a concave die in the thick plate safety area body is set to be as the thickness of a thick plate material; the gap between the convex die and the concave die in the thin plate materialbuffering area body is set to be as the thickness of a thin plate material; the gap between the convex die and the concave die in the gap transition area body is set to be in a linear transition mode.By means of the method, the interference of the plate materials with the dies can be avoided, the area of the stamping deformation area is reduced, and the deformation degree is effectively reduced.
Description
technical field [0001] The invention relates to the technical field of punching of auto parts, in particular to a drawing shape design method for controlling punching deformation of tailor-welded blanks of unequal thickness. Background technique [0002] In the field of stamping manufacturing of auto parts, the stamping technology of tailor-welded blanks with different thicknesses is often used. This technology is to connect plates of different materials and thicknesses by laser welding and other methods, and then form them into one piece by stamping, which realizes the lightweight and high strength of some parts. Although the unequal thickness tailor-welded blank technology has many advantages, it also brings some new problems in the manufacturing process. The more important problem is that during the stamping process, the thin sheet material flows into the thick sheet area and is deformed, which interferes with the flow of the thick sheet into the thin sheet area ( Figur...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): B21D22/20
Inventor 周晓舟韦衍杰张文涛李亮周厚新
Owner DONGFENG MOTOR CORP HUBEI