Ring manufacturing method and ring manufacturing apparatus

Details Ring manufacturing method and ring manufacturing apparatus Ring manufacturing method and ring manufacturing apparatus

1998-06-26

1999-11-09

Crane, Daniel C.

Metal deforming

By deflecting successively-presented portions of work during...

By use of deflectors arranged to bend work longitudinally of...

72168, 72189, B21D 1108

Patent

active

059792051

ABSTRACT:
A ring manufacturing method and a ring manufacturing apparatus according to the invention does not require the preparation of a specially shaped plate material for each type of ring plate to be manufactured. It is therefore possible to manufacture a ring plate of any thickness or width with a high degree of accuracy even in high-variety, low-volume production. In a plate material forming step, a round bar 1 is formed by rollers 3, 4 into a plate material having any desired cross-sectional shape. In a slant rolling step, the plate material is slant rolled by slant rollers 9, 10 and thereby formed into a specially shaped plate material whose thickness increases in the width direction from one side to the other. In a ring forming step, this specially shaped plate material is formed into a ring shape by a ring forming device 14. The specially shaped plate material can be formed on the ring forming production line, whereby the accuracy of the shape of the resulting ring is achieved without having to separately prepare a specially shaped plate material for each type of ring plate to be manufactured.

REFERENCES:
patent: 3036622 (1962-05-01), Hitz
patent: 4545229 (1985-10-01), Stephanenko
Ikuta et al., Automobile Technology Society, Science Lecture Meeting Advance Notes 921 1992-5.

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