. Railway mechanical engineer . Fig. 5—Universal Forging Machine Equipped to Form BrakeShaft Ends full length in Fig. 4, being upset and formed at points Band C. The preliminary operations are performed on theforging machine illustrated in Figs. 5 and 6. Referring toFig. 3, the first operation is to upset the right-hand end of the other end. This taper is removed by the hammer swagerA (Fig. 6), operated under the vertical press which forms apart of the forging machine. Referring again to Fig. 3 the second forging operation on. Fig. 6—View Showing Vertical Press and Hammer Swager the brake shaf
. Railway mechanical engineer . Fig. 5—Universal Forging Machine Equipped to Form BrakeShaft Ends full length in Fig. 4, being upset and formed at points Band C. The preliminary operations are performed on theforging machine illustrated in Figs. 5 and 6. Referring toFig. 3, the first operation is to upset the right-hand end of the other end. This taper is removed by the hammer swagerA (Fig. 6), operated under the vertical press which forms apart of the forging machine. Referring again to Fig. 3 the second forging operation on. Fig. 6—View Showing Vertical Press and Hammer Swager the brake shaft is to upset section D 1^4 in. in diameter by334 in- long using extension dies, half of which are shownin Fig. 7. These dies are secured in the forging machine insuch a way that the upper part extends above the machine,allowing brake shaft end A to extend over the top of themachine so that a second upsetting operation can be per-formed at U. In Fig. 7 .4 is the moving die and B the fixeddie. A and B are held in alignment by two pins and sep- Decemhkk. 1921 ME( II VNICAL ENGINEER 771 arated after each stroke by the two springs shown betweenthem. In operation the brake shafttion and a similar j>air of dies is heated at the correct loca- i nme against dies .1 and B,
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
