Live Steam Index

Deerfield and Roundabout Railway
New Car Wheel Manufacturing
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Third operation continued. The outside tool bit begins facing the back of the flange before the inside tool bit begins facing the back hub. Spindle speed 370 rpm., 494 sfpm. at the beginning of the outside tool bit cut, lathe power cross feed rate 0.003 ipr.

drwhl5

Third operation continued. Tandem facing of back of the flange and back hub. Spindle speed 370 rpm., 149 sfpm. at the beginning of the inside tool bit cut, lathe power cross feed rate 0.003 ipr. During the facing operation the turret is indexed from the twist drill to the boring bar.

drwhl6

Third operation continued. The outside tool bit continues facing the back of the flange after the inside tool bit has completed facing the back hub. The tool bits are mounted in such a way that the cutting of the inside tool bit was begun and completed during the longer cut taken by the outside tool bit.

drwhl7

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