. American engineer and railroad journal . d to some extent before the mostsuitable feeds and speeds for different materials and theproper methods of lubrication were determined upon, andtherefore a second cutter will undoubtedly last longer. Somelittle experimental work was also required to determine thelength of time which the cutter should be run before regrind-ing. A cutter of this kind can satisfactorily mill 42 cast steelboxes (84 sides) before regrinding, although these boxes arerough, sandy and uneven. It has been found that in milling cast steel it is veryimportant that a good stream
. American engineer and railroad journal . d to some extent before the mostsuitable feeds and speeds for different materials and theproper methods of lubrication were determined upon, andtherefore a second cutter will undoubtedly last longer. Somelittle experimental work was also required to determine thelength of time which the cutter should be run before regrind-ing. A cutter of this kind can satisfactorily mill 42 cast steelboxes (84 sides) before regrinding, although these boxes arerough, sandy and uneven. It has been found that in milling cast steel it is veryimportant that a good stream of soda or compound be forcedonto the cutter, and the suggestion is made that milling machines to handle this class of work should be providedwith a large capacity pump and have a comparatively largereservoir on top of the housing. Two pipes could run downfrom the reservoir to the cutter and each one end in a Twith a large number of small holes in it, so that a good streamof lubricant could be forced onto the cutter over its
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
