The crank shaft is to launch to bear pound at to carry a lotus and deliver in the machine motive of importance spare parts, because of the crank shaft undergo military service a condition bad, so to crank shaft material, semi-finished product processing technology, accuracy, surface rough degree, hot processing and the surface enhance, move balance etc. request all very strict. Therefore want to draw up reasonable of process a craft, want first according to request choice reasonable of semi-finished product, in the process of process in want to choose reasonable of process equipments and knife, tongs, quantity and measure method, want to carry on to process a work preface design in process the craft, process size, time settle sum of calculation, the spare parts process to want design reasonable of appropriation tongs. Accompany with crank shaft to process a develop of craft, process a method to not only improve, process a method more and more advanced, so the crank shaft of design reasonable process a craft and pack to clip of tongs, not only can raise to process accuracy, but also can raise production efficiency, the cost for lowering produce thus with expect exaltation product of competition ability.
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