This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1906 Excerpt: ...case mentioned below. A number of forgings were wanted like A, Fig. 220. The stock was cut to the proper length and Fig. 220. the ends bent at right angles. To make all the pieces alike, one end of each piece was first bent, as shown at B, in a vise. The other ends of the pieces were then all bent the same way, by ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1906 Excerpt: ...case mentioned below. A number of forgings were wanted like A, Fig. 220. The stock was cut to the proper length and Fig. 220. the ends bent at right angles. To make all the pieces alike, one end of each piece was first bent, as shown at B, in a vise. The other ends of the pieces were then all bent the same way, by hooking the bent end over a bar cut to the proper length and bending down the straight end over the other end of the bar, as shown at C. To make the final bend, a cast-iron form was usedsimilar to D. This casting was about 2 " thick, and the dovetailshaped base fitted the slot in the anvil base of the hammer. When the form was used, the anvil-die was removed and the form put in its place. The strips to be bent were laid on top of this form and a heavy piece of flat stock, i"X2," bent into a TJ shape to fit the outside of the forging, placed on. top. A light blow of the hammer would force the U-shaped piece down, bending the stock into the proper shape. Fig. 221 shows the operation, the dotted lines indicating the position of the pieces before bringing down the hammer. The most satisfactory results were obtained by bringing the hammer down lightly on the work, then, by turning on a full head of steam, the ram was forced down comparatively slowly, bending the stock gradually and easily. This was much more satisfactory than a quick, sharp blow. It is not necessary to have the U-shaped piece of exactly the same shape as the forging. It is sufficient if the lower ends of the U are the proper distance apart. As the strip is bent over the form, it naturally follows the outline; and it is only necessary to force it against the form at the lower points of the sides. The last bend might have been made by using a second die fastened to the ram...
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Add this copy of Forge-Practice (Elementary) to cart. $19.72, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
Add this copy of Forge-Practice (Elementary) to cart. $29.16, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
