Abstract
Analyzed the commonly used method that machined large diameter hole bottom transition arc surface, it’ advantages and shortcoming. Through an example, we introduced the method of using the R parameter programming of SIEMENS840D numerical control system when milling cut large diameter transition arc surfaces. This method's application has the positive significance to reduce the programming and other non-productive work time, guaranteed processing quality, raised the machining efficiency, so we introduce this method and hope it is helpful to machining of similar parts.
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