The main contents of forging process on hammer are as follows:

① Draw the die forging drawing according to the forging drawing.

② Determine the deformation process plan, mainly the type sequence of deformation steps.

③ Process design corresponding groove design.

④ Calculate the original blank.

⑤ Determine the equipment tonnage.

⑥ Hammer forging die structure design, drawing forging die diagram.

⑦ The heating cooling specification heat treatment process of forging blank are determined.

⑧ Determine the trimming process design the trimming die.

⑨ Determine the process equipment of forging cleaning calibration.

⑩ Fill in the die forging process card.

The general process of die forging process mainly includes blanking, heating, oxide scale removal, billet preparation, die forging, trimming, heat treatment, surface cleaning, correction, inspection other processes. After the first mock exam, the billet is gradually deformed in a series of grooves of the forging die, then becomes a forgings. The deformation process of the billet in each die chamber of the forging die is called forging step.

Die forging process is the most important key part in the process of die forging. It determines what kind of die forging steps are used for forging work. The basic working steps of die forging on hammer can be divided into the following three categories.

1. Preparation steps

The main function of the blank making step is to redistribute the volume of the blank change the axis shape of the blank, reasonably distribute the volume of the blank, so that the cross-sectional area of the blank along the axis is roughly suitable for the forging, which is conducive to filling the cavity of the forging metal. The blank making process mainly includes upsetting, stretching, rolling, flattening, shoulder pressing, clamping, forming bending.

2. Die forging steps

Die forging includes pre forging final forging. Its function is to forge the blank to the required shape size. The groove used is called forging die cavity die forging groove. There are two kinds of pre forging final forging. Each forging requires a final forging step, the pre forging step can be used according to the specific situation.

3. Cutting off steps

The main function of the cut-off step is to cut separate the forging the bar. When the multi-piece die forging is used, the forged forging can be cut off so that the next forging can be continued the burr jaw can be cut off.

The selection of die forging steps is based on the shape characteristics of forgings, equipment conditions production conditions, production batch the operation technology level of workers. The main problems to be considered in the process of die forging are: whether there is a precedent of similar forging for reference, whether less steps are used to complete die forging, whether pre forging is used, how to reduce waste loss, how to operate conveniently, whether to reduce the turning round times in the blank making process, whether multi-piece forging can be adopted.