| 摘要 |
1,121,700. Making metal Strip. GENERAL MOTORS CORP. 25 Aug., 1966 [3 Sept., 1965 (2)], No. 38122/66. Headings B3B and B3T. In a method of making metal strip by peeling a surface layer from a rotating metal billet, a power driven, cooled, rotatable spindle 24 has a billet 36 secured thereto by a chucking device 30, and a cutting tool 64 clamped in holding means 50, 60, is advanced by screw and nut means 54, 52 into the workpiece at a predetermined rate so as to peel a strip 120 from the workpiece as it rotates with the spindle, tension being applied to the strip to pull it over the cutting tool, the tension being regulated to control the thickness of the strip. Winding up means 12 is provided to initially wrap and subsequently coil the strip on to the mandrel 104 of a wind-up device, the wind-up device incorporating torque controlling means which tensions the strip during the coiling operation, sensing means (not shown) being provided to control the tension in relation to the thickness of the strip. To prevent inaccuracies in the finished strip due to fluctuations in temperature during the peeling operation, the machine spindle 24 and the chucking device are provided with passages 38, 40, for coolant and the external surface of the workpiece is cooled during the peeling operation. At the commencement of the peeling operation means in the form of a rotating wire brush 90 is provided to straighten the end of the strip to facilitate its feeding through supporting means 112 and 120 on to the coiling mandrel 104. The wrapping device 106 and the brush 90 are displaced so as to be inoperative whilst the coiling operation is in progress. The cutting tool 64 which has an insert 66 is rigidly secured in the tool holder 60 by a wedge member 80 so as to prevent vibration during the strip peeling process. |
