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Importance of forging process scheme for Forgings (Part ii)

Forging process analysis specific forgings. Comprehensive application of metal pressure processing principle, forging technology, metal and heat treatment, forging equipment and automation and other disciplines and plant practice.Starting from the analysis of the function and technical requirements of parts, explore various possible deformation modes, design reasonable forging structure, determine the appropriate machining allowance, tolerance and technological dressing, and draw forging drawings. According to the shape, size and deformation mode of the forgings, calculate the deformation required force, select the main forging equipment. Determine the heating temperature according to the forging material and deformation mode, select the heating mode and heating equipment.     

The forging process which is not reliable in technology should be screened and eliminated before the alternative process scheme is obtained. The so-called unreliable forging process includes the following aspects: failure to complete the forging; The dimensional accuracy does not meet the requirements of the drawing; Metal streamline is not reasonable or cannot meet the requirements of metal streamline of parts;  Can not meet the parts strength, stiffness and hardness and other performance requirements; It cannot meet the requirements of quality tolerance and dimension tolerance for the use of parts or subsequent processing; Unable to obtain the required forging and pressing equipment or die, can not get the necessary power, fuel, raw materials, auxiliary materials supply.

Forging process analysis is a system engineering problem. Although it is still an empirical analogy and inference, it is a method characterized by the mental work of individual craftsmen, so it is required that those engaged in this work should be familiar with the existing production methods and master the characteristics, scope of application and limitations of various forging process schemes.

To sum up, we have a comprehensive understanding of the forging processing methods of specific forgings. If the analysis is based on the existing knowledge and experience, the proposed process schemes will be limited to the existing production mode, and then further thinking and new ideas will be put forward. In view of the inherent shortcomings of existing schemes, new technological schemes are designed by improving or changing forgings if possible in terms of deformation mode, reduction of working procedure, energy saving and material saving. The new idea should go through the above procedure and calculate various technical data to form a complete process plan.