What are the uses of forgings?

Release time:

2024-01-19 09:24

A forging is a workpiece or blank obtained by deforming a metal billet by forging. The use of pressure on the metal billet to produce plastic deformation, can change its mechanical properties. According to the temperature of the billet at the time of processing, forging can be divided into cold forging temperature forging and hot forging. Cold forging is generally processed at room temperature, hot forging is higher than the recrystallisation temperature of the metal billet processing.

Forgings for general industrial use, refers to the machine tool manufacturing industry, agricultural machinery, agricultural tools manufacturing and bearing industry and other civil industries. Hydro generator forgings, such as the main shaft and intermediate shaft.

Thermal power station forgings, like rotors, impellers, ring spindles and so on. Metallurgical machinery, such as cold rolls, hot rolls and herringbone gear shafts.

Pressure vessel forgings, such as cylinders, kettle flanges and heads. Marine forgings, such as crankshafts, tail shafts, rudder rods, thrust shafts and intermediate shafts.

Forging machinery and equipment, like hammer heads, hammer rods, columns and cylinders of hydraulic presses, pillars and cylinders of axle presses, etc. Modular forgings, mainly for hot-die forging hammers.

Automotive industry forgings, like left and right steering knuckles, front beams, hooks, etc. According to statistics in the car, forging parts accounted for 80% of its quality. Locomotive forgings, such as axles, wheels, leaf springs, locomotive crankshafts, etc., according to statistics, in the locomotive, forging parts accounted for 60% of its mass. The weight range of forgings is large. Forgings are as small as a few grams to hundreds of tonnes.

Forgings than castings of high quality. The mechanical properties of forgings are better than castings, and can withstand large impact forces and other heavy loads, so where some important, stressed parts are used forgings.

For high carbide steel, forgings than rolled material quality. Such as high-speed steel rolled material can only meet the requirements of use after reforging. In particular, high-speed steel milling cutter must be reforged.

Light weight forgings. Under the premise of guaranteeing the design strength, forgings are lighter than castings, which reduces the weight of the machine itself, for transport, aircraft, vehicles and the word zeusheng navigation teasing apparatus has an important significance.

Forgings save raw materials. For example, the static weight of 17kg crankshaft used in automobiles, the use of rolling stock cutting forging, chips to account for 189% of the weight of the crankshaft, while the use of die forging, chips accounted for only 30%, but also to shorten the machining time 1 / 6.

Precision forging forgings, not only can save more raw materials, but also save more machining hours.

High productivity of forgings. For example, the use of two hot forging presses die forging radial thrust bearings, can replace 30 sets of automatic cutting machine tools. When using top forging automatic machine to produce M24 nuts, the productivity of six-axis automatic lathe is 17.5 times.

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Processing of forgings in a forging plant

The Process Behind Important Mechanical Components - Forging

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Matters to be noted when polishing forgings

A good polishing surface for forgings should be clean, bright and flat. However, poor polishing often results in a number of polishing defects, the common ones being: pockmarks, contamination spots, scratches, trailing and shedding of non-metallic inclusions. If such defects occur, it is necessary to re-polish the sample.

What are the characteristics of forged machined forgings?

Forging plant forging products are plastically deformed through forging processing, forging processing is the use of external forces to produce plastic deformation of the raw material forging, to obtain the required size, shape and performance of the forging blanks or parts of the processing method.

What are the trends in forging?

Mainly to improve their mechanical properties (strength, plasticity, toughness, fatigue strength) and reliability. This requires better application of the theory of plastic deformation of metals; application of materials with better intrinsic quality, such as vacuum-treated and vacuum-smelted steel;

What are the contents of quality inspection of forgings?

The existence of forging defects, some will affect the quality of subsequent processes or processing quality, some seriously affect the performance and use of forgings, and even greatly reduce the service life of manufactured parts, endangering safety.

Why are there white spots on forgings?

Usually the heat treatment of large forgings is combined with the cooling of the forgings with each other, due to the large cross-section size of large forgings and the complexity of the production process.

What is meant by decarburisation during heating of forgings?

Forging to pay attention to a lot of things, but not every item to pay strict attention to, forging heating process decarburisation is what it means? The following article is mainly to tell you.