Forging is an indispensable processing behavior in the industrial sector, and today's aerospace, weapons, machinery, chemical, nuclear power, ship, metallurgy and other industries are widely involved. In layman's terms, forging is the use of an additional load (impact load or static load) to make metal blanks plastic deformation through forging equipment or molds, resulting in the desired shape, size and quality of forgings.
Of course, late heat treatment is also a key factor affecting the mechanical properties of forgings. Forgings are a process. Forgings are objects where metal is applied to shape the required shape or the right compression force through plastic deformation. This force is typically achieved by using a hammer or pressure. Forgings need to be consistent on every piece without any porousness, inclusions or other imperfections. The advantages of forgings are the length of the stretchable, the shrinkable length, the extendable cross-section, the changeable length, the changeable cross-section.
The types of forgings are: free forging/hand forging, hot forging/precision forging, top forging, rolling and forging.
Enterprises should include the following points when developing free forging procedures:
1, forging engineers according to the part map and its technical conditions to design forging drawings, and put forward the technical conditions and inspection requirements of forgings
2, the material master to determine the quality and size of the blanks (large forgings also need to the raw material material and smelting method smelting requirements);
3, determine the deformation process and tools;
4, choose forging equipment;
5, determine the forging temperature range and heating and cooling specifications;
6, to determine the heat treatment specificationafter after forging;
7, fill in the process card.
1, can improve the performance of metal, so that its organization, performance into directional;
2, the margin of die forging is relatively small relative production capacity is relatively high, less input, cost savings, at present almost all metal materials can be forged into semi-finished parts, forging accuracy is higher and higher, can greatly reduce the subsequent processing time and costs; 3, flexible processing, small forgings can be forged, large can be free forging. Of course, its shortcomings are also obvious: 1 mold cost is high, processing cycle is long.
Limited by the tonnage of forging equipment.