• Follow us
Home > News > Content
How To Reflect The Advantages Of Forgings In Use?
Sep 20, 2017

How to reflect the advantages of Forgings in use?
Forgings is the pressure of the metal, through the plastic deformation of the shape of the requirements or the appropriate compression force, the typical shape of the force by using a hammer or pressure. Built a fine grain structure, casting process, improve the physical properties of metal. In the actual use of the part, the proper design can make the grain flow in the direction of the main stress.
Forgings quality inspection includes appearance quality and intrinsic quality inspection. Appearance quality inspection mainly refers to the geometric size, shape, surface of the Forgings parts, such as the inspection of the project; internal quality inspection mainly refers to the chemical composition, macroscopic, microstructure and mechanical properties of the purpose of inspection Forgings parts.
Forgings requires each piece to be consistent, without any porosity, excess space, inclusions or other defects. Produced by the method of this element, in addition to having a high strength to weight ratio. The length of the Forgings has the advantage of a retractable, retractable cross-section; the length of the retractable, inflatable cross-section; it can be changed to change the length of the section.
Forgings materials are in addition to the usual materials, such as carbon steel and alloy steel, followed by aluminum, magnesium, copper, titanium and its alloys, high temperature iron-based alloys, nickel-based super alloys, the alloy cobalt-based super alloy deformation is forged Or finishing the way, only because of its plastic zone alloy is relatively narrow, so the difficulty of Forgings will be relatively large, different materials, Forgings temperature heating temperature, and complete the Forgings temperature has strict requirements.
Forgings needs to be consistent with each piece, without any porosity, inclusions or other defects. This method produces components with a high ratio of strength to weight ratio. These elements are usually used in aircraft structures.
The cooling of the Forgings means that it cools from the final Forgings temperature to room temperature. Cooling mode improper selection, may be due to excessive stress cracks, the formation of reticular carbide and white spots affect the quality of products, and even make it scrapped.
Stainless steel Forgings a lot of quality problems, such as cracks in the mechanical processing, carbon content is too high, in front of have been, and now we talk about the stainless steel Forgings in Forgings after the completion of the quality of the analysis process.
In actual work, to determine whether the failure of semi-finished parts, finished parts or parts of stainless steel Forgings is not a very easy thing to do. Relatively speaking, semi-finished or finished parts of the failure analysis may be easier, and for the use of pieces of failure or failure analysis of the reasons will take some twists and turns.
Forgings quality problems arise in many ways. Through the macroscopic and microscopic analysis of Forgings, and sometimes the simulation test is carried out to find out whether the quality problem is caused by the Forgings process itself or other factors (such as raw materials, heat treatment, Surface treatment or test their own mistakes, etc.); is Forgings process is not reasonable or imperfect process discipline is not strictly serious implementation of the process, which are only after careful study and analysis can be made after the conclusion.
Stainless steel Forgings can improve their microstructure and mechanical properties after Forgings. Casting tissue after Forgings process thermal deformation due to the deformation and recrystallization of stainless steel, the original coarse dendrites and columnar grains into fine grain size, uniform size of the equiaxed recrystallization organization, so that the original ingot segregation, Loose, porosity, slag and other compaction and welding, the organization becomes more closely, to improve the plasticity and mechanical properties of the metal.