Standard category and name of forging equipment
Times：2019-10-26 From：Anshan Jiayang Heavy Industry Technology Co. Ltd Browse times：1058times
Forging production is l forming pressure processing. Forging industry is an old and vigorous industry. Forging usually refers to forging, stamping and sheet l production.
With the continuous development of international trade and international exchange, forging, stamping, sheet l production technology, forging, stamping and sheet l production industry equipment variety. Due to different regions, different manufacturers, different sources and different emphases of equipment names, there are many different names for the same equipment and the same name for different equipment, which causes many troubles for industry exchange, government policy formulation and implementation.
To this end, China Forging Association has solicited and defined the names of forging, stamping and sheet l manufacturing equipment, which is hereby released as follows.
1. Definition of forging terms 1. Forging is a processing method that under the action of pressure equipment and tools (molds), the billet or ingot will produce partial or total plastic deformation, so as to obtain parts (or blanks) of certain geometric size and shape and improve their performance, which is called forging.
It can be understood that forging is a processing method of forming l bar, wire or ingot under the action of force (energy) with or without heating. Commonly known as: iron. Forging belongs to l plastic forming, most of which are volume forming. It refers to the plastic deformation of l blank by using hammer, anvil or die on forging equipment. According to the size and shape of forgings, die structure and forging equipment, forging is divided into free forging and die forging. The products processed by forging are called free forging and die forging.
Free forging is a forging method that uses simple and universal tools, or directly applies external force to the blank between the upper and lower anvils of forging equipment to deform the blank and obtain the required forging geometry and internal quality. Die forging is a forging method which uses die to deform blank and obtain forging piece.
Large forgings are relative concepts, including large die forgings, large free forgings, large annular parts and large diameter thick wall seamless pipe fittings. The free forging produced by free forging hydraulic press with 8 Mn or above or free forging hammer with 30 kn or above is called large-scale free forging. The die forgings produced by die forging press above 60Mn, die forging hydraulic press above 80MN or die forging hammer above 100kN are large die forgings. Large forgings are mainly used in electric power, llurgy, petrochemicals, ships, locomotives, dies, aerospace, weapons, heavy machinery and automobile, mining machinery, general machinery and other industries.
l extrusion and rotary forming belong to special plastic forming, which is also classified as forging production technology at home and abroad. The products produced are also called forgings.
l rotary processing is a plastic processing method that only the l billet rotates or only the tool rotates or both of them rotate to deform the l billet, including longitudinal rolling, cross rolling, rotary rolling, ring rolling, cross wedge rolling, roll bending (or roll bending), roll forging, spinning, etc. The formed ring with an inner diameter of more than Φ 500mm is a large-scale ring; the extruded pipe with an inner diameter of more than Φ 300mm and a wall thickness of more than 30mm is a large-scale thick wall pipe.
2. Under the action of pressure equipment and tool (die), stamping can make the l sheet deform or separate, so as to obtain a certain geometric size and shape of stamping parts.
From the perspective of process deformation, stamping can be divided into two categories: separation process and forming process. Separation processes include: cutting, blanking, punching, trimming, sectioning, precision blanking, etc. Forming processes include: bending (bending, rolling, bending, stretch bending, etc.), drawing, bulging, flanging, expanding, necking, flanging, shaping, spinning, etc. The current development of separation forming process is also a category of stamping.
Sheet l stamping mainly consists of the following processes:
Separation process (blanking process): the separation of one part of a blank or part from another. Including cutting, blanking, trimming, punching, cutting, etc.
Forming process: change the shape of blank or parts. Including bending, drawing, flanging, curling, twisting, bulging, necking, undulating forming, shaping, etc.
Composite process: this kind of process includes two or more processes in blanking and forming. It is mainly realized by compound mode or continuous (progressive) mode.
Assembly process: several single stamping parts are assembled together by die, such as door pressing, car front and rear cover pressing and other processes are all realized by stamping.
3. Sheet l production
Generally, it refers to the process of forming or separating sheet l, pipe and profile under the action of hand and tools (dies) or equipment and dies, and forming parts or structural parts according to expected requirements, which is called sheet l production.
Sheet l making is a comprehensive cold forming process. Among them, sheet l includes cutting, punching, cutting, punching / cutting composite, bending, welding, riveting, splicing, forming and other processes; while manufacturing refers to the processing process of cutting and bending profiles and pipes with equipment and dies, so as to obtain parts of certain shape. Sheet l is included in the category of hardware production in traditional Chinese industrial system.
4. Forging equipment
The equipment or machinery used to complete the above process is called forging equipment. Forging equipment refers to the l forming machinery (forging machinery) excluding the l cutting (grinding) machine in the second l processing. Forging equipment is forging machinery.
Remarks
1. The "category" in this table refers to the identification of equipment functions and characteristics; the name is the general name commonly used for communication and ordering in industry.
2. "Numerical control or program control" indicated in this table actually refers to the only form of this kind of equipment, without non numerical control and program control
