Table 6 Relative radial stress according draw ratios (2.3–2.6) and inflow angles (1\(^\circ\)–10\(^\circ\))

Draw ratio (2.3)

 Inflow angle of workpiece (\(^\circ\))

1

2

3

4

5

6

7

8

9

10

 Relative radial stress

0.89

0.89

0.90

0.90

0.91

0.92

0.93

0.94

0.95

0.96

Draw ratio (2.4)

 Inflow angle of workpiece (\(^\circ\))

1

2

3

4

5

6

7

8

9

10

Relative radial stress

0.93

0.93

0.94

0.94

0.95

0.96

0.97

0.98

0.99

1.00

Draw ratio (2.5)

 Inflow angle of workpiece (\(^\circ\))

1

2

3

4

5

6

7

8

9

10

  Relative radial stress

0.96

0.97

0.98

0.98

0.99

1.00

1.01

1.02

1.03

1.04

Draw ratio (2.6)

 Inflow angle of workpiece (\(^\circ\))

1

2

3

4

5

6

7

8

9

10

  Relative radial stress

1.00

1.00

1.01

1.02

1.03

1.04

1.05

1.06

1.07

1.08