Table 1

Experimental sheet component content"

Table 2

Material performance parameters of experimental sheets at different tempera"

Table 3

Anisotropic parameters of CPB06 yield function (200℃)"

Figure 1

Finite element analysis model"

Figure 2

Assembly of finite element model"

Figure 3

Sheet metal model edge fixed"

Figure 4

Inverted cone path"

Figure 5

Calculation method of convex"

Figure 6

Convex value of different processing depth"

Figure 7

Convex value of formed parts with different bottom area"

Figure 8

Convex figure with processing depth 25mm"

Figure 9

Convex figure with processing depth 2mm"

Figure 10

Convex figure with processing depth 12mm"

Figure 11

Convex figure with processing depth 17mm"

Figure 12

Convex of different layer height after the forming process"

Figure 13

Convex being processed to the second layer"

Figure 14

Schematic diagram of experimental platform"

Figure 15

The experimental platform diagram"

Figure 16

Convex of formed parts with different number of machining layers"

Figure 17

Convex figure of formed parts with different side length of bottom surface"

Figure 18

The convex of formed parts with different interlayer spacing"

Figure 19

The convex of formed parts with different forming temperature"

Figure 20

Schematic diagram of stress direction of sheet metal cross section"

Figure 21

σ11, σ22, σ33 stress distribution"

Figure 21

σ11 stress distribution on upper and lower surfaces"

Figure 23.

σ22 stress distribution on upper and surfaces"

Figure 24.

σ33 stress distribution on upper and lower surfaces"

Figure 25.

σ11 figure of different interlayer spacing when processed to the first layer"