. Railway age gazette . Fig. —5—iU— p ^ Hfgh Speed Sreel. S Teeth -New Style End Mills, and Bushings some provision made for the cliip to escape if a free cutting actionis to be obtained. .\ milling cutter is usually ground radial withthe center and there is little or no opportunity for the chip toescape, consequently it pushes the chip through the work, gener-ating heat and vibration, which are two of the most destructive tt/gh Speed Steet. No. 3 Morse F^!-. Size ofPiston Keu A B I C D E F G H [I i 9 a i ■? 2 4 / 1 %.IZThd.\Zi % 3 ¥z\l Z 4 / 1 %,IZThd.\ zi 7 ySk_ III Z 4 / i /. IZTnd: 2i 1 i-

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. Railway age gazette . Fig. —5—iU— p ^ Hfgh Speed Sreel. S Teeth -New Style End Mills, and Bushings some provision made for the cliip to escape if a free cutting actionis to be obtained. .\ milling cutter is usually ground radial withthe center and there is little or no opportunity for the chip toescape, consequently it pushes the chip through the work, gener-ating heat and vibration, which are two of the most destructive tt/gh Speed Steet. No. 3 Morse F^!-. Size ofPiston Keu A B I C D E F G H [I i 9 a i ■? 2 4 / 1 %.IZThd.\Zi % 3 ¥z\l Z 4 / 1 %,IZThd.\ zi 7 ySk_ III Z 4 / i /. IZTnd: 2i 1 i-s Z 4 / 1 1 /, IZTnd 3 1 ^acffc Fig. 5—Helical Cutters for Piston Rod Keyways causes which aflect a cutting tuul. The design of the milling cut-ter is of vital importance and a radical departure from standardcutters must obviously be considered if any marked advance isto be made in the art of efficient metal cutting. More depends(..n the design of a cutter and the manner in which it is presented

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1913