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将许多切削工序有效地合并在一个镗铣头上进行,就能以会使刀具长寿的通常采用的切削速度和进给量,在所要求的时间内完成任务。这就是美国迪华里格机床公司,在加工复杂铸钢件时所采取的措施主要优点之一。该公司的工程技术人员将一个15英寸(381毫米)的双导轨横向进给的端面镗头,与一个专用的桥装式镗头合并使用。这种办法用来一次加工三个直径不同的内孔、一个端面上的凹槽和一个端面。此外,在车端面时,有两个内孔镗刀还必须能自动退刀。铸钢件镗孔时,
By effectively combining many cutting operations on a single boring and milling head, the job can be completed within the required time and with the usual cutting speeds and feeds that will make the tool longer. This is one of the major benefits of the measures taken by the United States Diarrige Machine Tool Company in the machining of complex steel castings. The company’s engineering staff combined a 15-inch (381 mm) double-rail, transverse-feed end boring head with a dedicated bridge-mounted boring head. This method is used to machine three boreholes of different diameters at one time, with grooves on one end face and one end face. In addition, in the car end, there are two bore boring tool must also be able to automatically retract. Cast steel bored,