How to Forge a Iron Chain link?

Stages for making a link for a chain,

1) Cut the rod into four pieces of required size, three of equal lengths for 3 links and the fourth one for the ring.

2) Heat one piece of the rod in a forge fire.

3) Place it with a round tong over the horn of an anvil and bend it by hammering with a hand hammer.

4.) Scarf the ends for welding. Scarfing is the method of shaping the ends of metal for welding.

5.) Heat the whole piece again and bend it into the shape desired and weld the scarfed ends to from the link.

6.) Weld the second link in this manner, but the first link already made must be inserted within it an so on until all the links are prepared.

The method of making the ring is same as before. After scarfing the ends, heat the whole piece and bend it to the shape in a set of bending rolls.

To estimate the length of rod required in forging, a little length, in addition to the calculated length , is usually allowed for squaring the ends just before closing. Further, forging involves loss in material due to roasting residue (forging scales) and compression of the material. Therefore, a material allowance of 10 to 20 percent should be added, depending on the size of the working piece.

Tools used : (1) Anvil, (2) Hammer, (3)Tong, (4)Chisel, (5) Caliper, and (6) Footrule.

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