Manufacturing Guidelines for Forged Parts

The nature of the forging process in which solid metal is squeezed and moved within a die set to form a part leads to the following broad DFM guidelines:

1. Because all the pre-forming operations required to forge a part result in long cycle times, and because the robustness required of the dies, hammers, and presses result in high die and equipment cost, when compared to stamping and die casting, forging is an expensive operation. Thus, if possible, forging should be avoided. Of course, there are times when functionality dictates a forged part, or when other processes are even more costly. In these cases:

2. Select materials that are relatively easy to deform. These materials will require fewer dies, shorten the processing cycle, and require a smaller hammer or press.

3. Because of the need for the metal to deform, part shapes that provide relatively smooth and easy external flow paths are desirable. Thus, corners with generous radii are desirable. In addition, tall thin projections should be avoided since such projections require large forces (hence large presses and/or hammers), more pre-forming stages (hence more dies), cause rapid die wear, and result in increased processing cycle time.

4. For ease of productivity, ribs should be widely spaced (spacing between longitudinal ribs should be greater than the rib height; spacing between radial ribs should be greater than 30 degrees). Closely spaced ribs can result in greater die wear and an increase in the number of dies required to produce the part.

Forging parts have the advantages of high quality, light weight, high production efficiency, wide weight range and flexible practise compared with casting, that is popular technology in manufacturing of hardware parts. Forging is the advantage part of Runyou Machinery. In forging workshop we have 300T, 400T, 630T forging line respectively, with daily productivity 8000pcs. By now we have developed full set of forged D ring with dimension from 1/2” to 1”, with satisfactory breaking strength based on different shapes. Our forged D rings are qualified for European standard, and have got CE certificate for it.

Post time: Sep-06-2022