Solution Technology in Dimension Accuracy for Ultra High ...

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Solution Technology in Dimension Accuracy for Ultra High-Tensile Strength Steel Sheet: Pulsation Management Technology, Repeated Bending Technology 1. Under Development 3. Commercialized 2. Development Completed Effect progress Points The parts dimension is stabilized regardless of the strength of the material. Characteristics: 1 st P r o c e s s ②Change of Angle (Die Shoulder) Wall Camber Conventional Fo r m i n g Springing Control, Double-Bending ①Wall camber and c h a n ge o f a ngle ( die shoulder ) a r e r e d u ced by cont r o lling the tilt angle θ of t h e v e r t ic a l w a l l ③Change of angle (punch shoulder) is reduced by controlling the bending position shi f t△W →Linear wall (90°) h a t ch a n n e l is realized. ③Change of Angle (Punch Shoulder) 2 n d P r o c e ss Springing Control Springing Control Double-Bending Double-Bending Hat channel w i t h excellent d i mension accuracy is fo r m ed in t w o pro c e s s e s Hat channel with excellent dimension accuracy is formed in two processes Springing Control Springing Control Double-Bending Double-Bending (Co r re c t se t ting of t h e t ilt angle θ of ve r t i ca l wall) (Correct setting of the tilt angle θ of vertical wall) (Correct setting of the bending position shift△W) (Correct setting of the bending position shift△W) 1 s t Process: 2 n d Process: 1 st Process: 2 nd Process:

Transcript of Solution Technology in Dimension Accuracy for Ultra High ...

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Solution Technology in Dimension Accuracy forUltra High-Tensile Strength Steel Sheet:

Pulsation Management Technology, Repeated Bending Technology

1. Under Development 3. Commercialized2. Development Completed

Effect

progress

Points

The parts dimension is stabilized regardless of the strength of the material.

Characteristics:

1st Process

②Change of Angle

(Die Shoulder)

Wall Camber

Conventional Forming Springing Control, Double-Bending

①Wall camber and ②change of angle (die shoulder)

are reduced by controlling the tilt angle θ

of the vertical wall

③Change of angle (punch shoulder) is reduced

by controlling the bending position shift△W

→Linear wall (90°) hat channel is realized.

③Change of Angle

(Punch Shoulder)

2nd Process

SpringingControl SpringingControl Double-BendingDouble-Bending

Hat channel with excellent dimension accuracy is formed in two processesHat channel with excellent dimension accuracy is formed in two processes

Springing Control Springing Control

Double-BendingDouble-Bending

(Correct setting of the tilt angle θ of vertical wall)(Correct setting of the tilt angle θ of vertical wall)

(Correct setting of the bending position shift△W)(Correct setting of the bending position shift△W)

1st Process:

2nd Process:

1st Process:

2nd Process: