. Railway mechanical engineer . !<_ ^^1 ^ Fig. 2—Dotted Lines Indicate First Operations on Clutch Gear of metal on either side, thus tending to steady the cuttingaction of the tool. The next operation 4, consists of counter-boring the , rough turning the lYi, external diameter androugli forming the chamfer. In this operation, the counter-. Tool Set Up 5: Finish Boring and Turning Operations boring cutter alone is removing 1 5/16-in. of metal on eachside and at the same time, tool 5 is taking a rough facingcut. With the conclusion of the heavy roughing cuts thefirst finishi
. Railway mechanical engineer . !<_ ^^1 ^ Fig. 2—Dotted Lines Indicate First Operations on Clutch Gear of metal on either side, thus tending to steady the cuttingaction of the tool. The next operation 4, consists of counter-boring the , rough turning the lYi, external diameter androugli forming the chamfer. In this operation, the counter-. Tool Set Up 5: Finish Boring and Turning Operations boring cutter alone is removing 1 5/16-in. of metal on eachside and at the same time, tool 5 is taking a rough facingcut. With the conclusion of the heavy roughing cuts thefirst finishing operation is to turn the 7^-in. external di-ameter and bore the 85 mm. and 6-in. diameter, leavingabout .007 in. for reaming with tool set up 5. These tools consist of a boring bar witii cutter for boring85 mm. diameter and a tool in the holder clamped to thel)ar for boring the 6-in. diameter all held in a turning toolliolder over the face of the turret. The tool for turning theexternal diameter is held in a fine adjustment tool holder,thus insuring quick and accurate setting. The boring toolsare also by screws operating underneath them. The two recesses are next faced and the 6-in. diameterundercut with the tools shown in tool set up-6 on thesquare turret. The chamfer is finished and also the frontface with tool 7 inverted in the holder
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
