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Explanation: in open die forging process, the deformation is not homogenous as bulging occurs due to the presence of friction at the interface of die and billet. this friction opposes the motion of billet; this effect is generally called as barreling effect.
Explanation: isothermal forging is a hot forging operation in which the metal part is maintained at some high temperature. the forging dies are also maintained at the same high temperature. in this method, the metal flows readily that reduces the amount of force required. but this process is expensive than the conventional forging and mainly used for materials like titanium and super-alloys.
Explanation: metal forging is a forming operation that performs hammering to shape the metal component. in forging process, the metal component is heated sufficiently, and then it is hammered by using a hammer which can be performed manually or by automation, depending on the scale of production and properties required in the forged metal component.
Explanation: in roll forming, a flat strip is gradually formed to the finished shape. the forming is almost exclusively accomplished by rotating contoured rolls while the material passes through the mill.
Explanation: the probability of having a good set of rolls is to follow few rules:
Explanation: “too quick” forming (too few passes) will distort the product because of the unacceptable level of stresses generated in the metal. on the other hand, too many passes will make the tooling and the process uneconomical.
Explanation: the depth of the section, also called as “leg length” or “leg height”, is the maximum vertical dimension of the profile as it exits from the last pass. sometimes it called as “depth of corrugation”.
Explanation: here, h = 1in; number of passes
Explanation: if the strain (elongation) exceeds the elastic limit, then the edge of the finished product will become permanently strained. due to which the finished product will be wavy or the product will have a bow, camber or twist.
Explanation: camber is the deviation of the strip edge from a straight line in the
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