. Forging of iron and steel, a text book for the use of students in colleges, secondary schools and the shop . /6 B /6/7 /6C of the heading tool. To get the stem and head concen-tric make to form shown in Fig. 16 A. Operation. Draw out about 1\ of the stock withset-hammer as shown in Fig. 16 B to the form shown inFig. 16 C and round so it will just pass into the headingtool. Then make head following the directions given onpage 88. Note. The point should be made before the head isformed. Example 17. Hexagon Head Bolt. — Stock, Mild Steel¥ round, 6j long. Explanation. The finished piece shown by
. Forging of iron and steel, a text book for the use of students in colleges, secondary schools and the shop . /6 B /6/7 /6C of the heading tool. To get the stem and head concen-tric make to form shown in Fig. 16 A. Operation. Draw out about 1\ of the stock withset-hammer as shown in Fig. 16 B to the form shown inFig. 16 C and round so it will just pass into the headingtool. Then make head following the directions given onpage 88. Note. The point should be made before the head isformed. Example 17. Hexagon Head Bolt. — Stock, Mild Steel¥ round, 6j long. Explanation. The finished piece shown by Fig. 17 Amust be to size and dimensions, the stem must be 194 APPENDIX straight and at right angles to the head and concentricwith it. If the proper amount of stock is not securedin the head, the proper thickness should be maintained atthe expense of the other /in Operation. Follow the directions on page 88 to makethe head and on pages 88 and 89 for shaping it. Example 18. Square Nut. — Stock, Norway Iron f xl. Explanation. The square nut shown by Fig. 18 Ais to be made. In case there is too much stock, obtainthe proper thickness at the expense of the other dimen-sions. Adjacent sides must be at right angles to eachother and at right angles to the faces. Operation. Punch § hole in the exact center of thepiece. Place on mandrel (Fig. 18 B) and with heavy
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1915
