. Railway mechanical engineer . -box frame bracesin dies itsed on our 5,000-Ib. steam hammer, impressions beingcut out in the dies to properly form the pads on the ends. Fig. 5 is a l54n- turnbuckle, the dies for making which areshown in Fig. 6. The iron is offset 3 in. from each end, 14 Then two pieces are placed together and after taking awelding heat on one end are placed in the bottom impression ofthe die. After the first operation we have the hex formed onone end with a hole about 1^4 • deep. A round face plungeris used in this operation. This answers two purposes: first, oneneed
. Railway mechanical engineer . -box frame bracesin dies itsed on our 5,000-Ib. steam hammer, impressions beingcut out in the dies to properly form the pads on the ends. Fig. 5 is a l54n- turnbuckle, the dies for making which areshown in Fig. 6. The iron is offset 3 in. from each end, 14 Then two pieces are placed together and after taking awelding heat on one end are placed in the bottom impression ofthe die. After the first operation we have the hex formed onone end with a hole about 1^4 • deep. A round face plungeris used in this operation. This answers two purposes: first, oneneed not use any filling-in piece; and, second, it sets out thecorners by plunging the hot metal against the solid center ofthe die. It is again re-heated to a welding heat and placed in thetop impression in the die, where the plunger punches out theslug and at the same time stencils the shop and companys completes the first end. The same operations are followedon the other end, after which the work is ready for tapping. Fig. 6—Dies for For rnbuckles the thread. While there is a small flash this is removed by plac-ing about 300 pieces in the flue rattler and rattled about twohours, not using any water. This removes the flash and polishesthe work at the same time. This turnbuckle is made at a verysmall labor cost. The dies are made of scrap axle steel with atool steel insert in the center of the die for punching the hole. DISCUSSION H. E. Gamble (Pennsylvania Railroad) : We are running ourdrop hammers night and day. The largest dies we have in usemeasure 12 in. by 30 in. by 36 in. and weigh 3,560 lb. each. Theyare of Vanadium cast steel. We have not as yet been successfulin eliminating the breaking of hammer rods and dies, heat cracksappearing in the latter from continuous use. ELECTRIC WELDING Joseph Grine (New York Central): It is our opinion thatelectric welders in locomotive shops should all be placed underthe blacksmith foreman for the following reasons: (a) Hiskn
Size: 1803px × 1386px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
