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According to the complexity of the helical surface in the new type stator which has an equal thickness rubber bushing and the uncertainty of the expression for the cross-section profile, this article concluded the equations of the the metal stator whose cross section curve is an equidistance of curtate hypocycloid. Then the mathematical expression for the cross-section of the stator and the inner...
Whirlwind enveloping milling is a high-efficient machining method for screws. Aiming at a single screw, double-heads pump rotors which is high in quantity supplied, this paper introduces the basic principle of inner whirlwind enveloping milling technology, studies an arithmetic for spatial path when the centre of cutting tools moves relative to workpiece to envelope helical surface, and analyzes the...
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