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Power shears for car workshop - uses blades with half round notches in straight edge, notches always meeting counter blade straight edge
Power shears for car workshop - uses blades with half round notches in straight edge, notches always meeting counter blade straight edge
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机译:汽车修理厂的动力剪-使用带有直边半圆形槽口的刀片,槽口始终与反刀片直边相交
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摘要
The power shears or similar may be used in automobile workshops to cut damaged car bodies, and utilise two blades with toothed cutting edges. The teeth are formed by equal semi-circular notches at regular intervals in a straight edge, and the geometry of the two blades is such that a notch invariably encounters a straight edge section on the counter blade. The arrangement avoids workpiece buckling and blade fracture. The cutting edges of the two blades may subtend an angle of between 30 and 50 degrees, and the blades may have different teeth pitches to maintain the coincidence of notches with straight edges. The notches of the two blades may have the same radius with the lengths of the straight edges modified, and a fine tooth pitch may be utilised with notch radius being between 0.75 and 1.5mm.
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