介绍了一种用于加工中等批量法兰孔的加工方法——“翻模法”.阐述了钻模底板、定位套、钻模套等钻模板部件的制备过程,并开展了制孔工艺研究.通过分析采用钻模板加工工件数量与法兰孔径尺寸数据,确定了批产过程中钻套的使用寿命为10件/套.%The article introduces a method named "turn over mold" about machining a middling batch of high precision flange hole.It elaborates the process of making motherboard,orientation bush,drill bush.We had launched the technology of drilling hole.By analyzing the data of the machined part's number and the flange hole's diameter,we had confirmed the drill bush's service life during batch production is 10 piece per set.
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