B - Operations – Transporting – 23 – C
Patent
B - Operations, Transporting
23
C
B23C 3/13 (2006.01) B21B 15/00 (2006.01) B23Q 11/00 (2006.01)
Patent
CA 2200740
In the present invention, in cutting the top and bottom surfaces of a hot-rolled sheet by the rotation of milling cutters holding the sheet therebetween in the thickness direction of the sheet in the running process of the hot-rolled sheet, the cutting resistance determined by the cutting conditions including the type of hot-rolled sheet, the temperature in cutting, and the cut depth is controlled by the adjustment of cut depth, and cutting is performed by making the tension produced on the hot-rolled sheet by the cutting resistance lower than the breaking strength of the joint portion to prevent the breakage of hot-rolled sheet.
Lorsque les faces supérieure et inférieure d'un matériau en feuille chaud à usiner par rotation entre des fraises se déplacent de part et d'autre de celles-ci, on agit, dans le cadre de cette invention, sur une résistance à la coupe due au type de matériau en feuille chaud et aux conditions de coupe, au nombre desquelles on compte la température existant au moment de l'usinage et la profondeur de coupe, en adaptant cette profondeur. On usine donc le matériau en feuille chaud tout en l'empêchant de casser, les tensions survenant dans le matériau dues à la résistance à la coupe étant maintenues à un seuil inférieur à la charge de rupture des parties jointes du matériau.
Amagasa Toshiaki
Hayashi Kanji
Hirabayashi Takeshi
Ichikizaki Tetsuo
Isoyama Shigeru
Kawasaki Steel Corporation
Mitsubishi Jukogyo Kabushiki Kaisha
Smart & Biggar
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