Title:
回転塑性加工の数値シミュレーション方法及び記録媒体及びプログラム
Document Type and Number:
Japanese Patent JP4168598
Kind Code:
B2
Abstract:
Elongation in the circumferential direction of a rotary formed body (31) is produced only within a model zone (M), and the approximate toric plate shape is maintained as the overall shape of the body (31), and the rotation axis (O) of the body (31) is positioned on a straight line connecting axes of rotation (P1, P2) of a main roll (32) and a mandrel roll (33). Moreover, the velocity of each nodal point (ua, va) and (ub, vb) on imaginary cutting planes (31 A, 31B), that is a velocity boundary condition is expressed by a linear combination of coefficients comprising a radius (rn) of the imaginary cutting planes (31A, 31B), and angles ( θ a and θ b) made by the imaginary cutting planes (31A, 31B), with respect to three variables comprising an increasing rate (rv) of the radius of the body (31), an angular velocity ( omega ) for rotation about the rotation axis (O) of the body (31), and a correction value (cv) for the traverse velocity (ov) of the rotation axis (O) of the body (31).
Inventors:
Hideo Takizawa
Application Number:
JP2001117156A
Publication Date:
October 22, 2008
Filing Date:
April 16, 2001
Export Citation:
Assignee:
Mitsubishi Materials Corporation
International Classes:
B21H1/00; G06F17/50; G06G7/48; B21B5/00; B21B37/00; B21H1/06
Domestic Patent References:
| JP2001087836A | ||||
| JP11191098A | ||||
| JP9319731A |
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama