Abstract
Screw compressor rotors are machined mainly by form grinding or milling tools. The precision requirements imposed upon them are today so demanding that the tool is allowed only limited wear and must be well set in the machine. It is therefore important to be able to quantify the tool set errors as well as to compensate for tool deformation and wear. Tool to rotor transformation is applied here to quantify these properties. Three possible errors are analysed, namely mismatch of the angle between the tool and rotor shafts, mismatch of the centre distance between the tool and the rotor, and mismatch in the axial tool position. The effect of tool deformation on the accuracy of the rotor is also considered. The effect of all three set errors is then used to compensate for the tool wear. A similar technique is valid for many machining processes in which form tools are used.
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Schedule a callMore From: Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture
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