Spinning process introduction

Spinning forming is by means of the wheel and other tools feed movement, pressure with the machine tool spindle with the metal blank (metal sheet or pipe), so that it produces continuous local plastic deformation and become a hollow rotary body parts of a less no cutting processing technology.  

With the production of aircraft, rockets and missiles, on the basis of ordinary spinning, the development of thin spinning (also known as strong spinning).  

Spinning can be divided into traditional spinning and special spinning.  Let's look at the classification of traditional spinning techniques in detail:  

Where is spinning used?  

Spinning forming technology has been widely used in aerospace, aviation, military, automobile, chemical, electronic and other fields.  

I would like to introduce some important areas in detail:  

1. Spinning is widely used in hub production  

There are basically three kinds of aluminum alloy wheels we have seen from the manufacturing process: casting, forging, MAT spinning casting.  

MAT spinning technology was initially put into use by ENKEI, a Japanese wheel manufacturer, and O.Z, a well-known Italian wheel manufacturer, also launched its own MAT spinning technology products recently. Friends who watch WRC must often see O.Z wheels used in each WRC race car, and it can be seen that there have been more and more wheel manufacturers are very optimistic about the prospect of this technology.  

MAT spinning wheel is actually a casting aluminum alloy wheel, but the difference is that the cast wheel blank will be special equipment for its stress on the rotating pressure processing.  The internal molecular arrangement of the metal at the treated position changes, presenting a higher density of fiber than the cast hub, which changes the mechanics of the metal and increases its strength.  This makes the wheels lighter and thinner, up to 15% lighter than cast aluminum, but as strong as forged wheels.  

2, spinning, power transmission localization  

See the video for details.  

3, the application of military industry with the continuous development of aircraft, missiles, spacecraft product performance, spinning technology, especially strong spinning technology in the aerospace industry more and more important position.  Powerful spinning is often used to process missile shells, end caps, tank heads, nose cones, nozzles, pressure vessels of all kinds of spherical or cylindrical cylinders, pipe fittings and aircraft engine nozzle, combustor cone, fairing, compressor disc and turboshaft parts.  After this process, the parts have high precision, good luminosity, uniform wall thickness and small rebound, the diameter and wall thickness tolerance of small and medium-sized parts can be controlled in the range of 0.03~0.05mm, and the surface roughness Ra can be less than 0.8μm, and because the strong spinning is no chip processing, the material utilization rate can be improved and the cost can be reduced.  In addition, the powerful spinning technology is also increasingly common in weapons, naval ships, atomic energy and other fields, including torpedo housing, periscope housing, drug cover, tail tube, rocket shell, gun barrel and reactor parts.  

Spinning technology level at home and abroad  

The United States has the strongest ability to manufacture spinning machine tools, the largest volume, and the most applications in the aerospace field.  Such as "minuteman" solid missile first stage engine shell, "Hercules ⅲ C" solid engine end cover, lunar module fuel tank head, space shuttle solid booster shell and so on all adopt the strong spinning process.  The production of spinning machine company mainly rocky heap lai, Cincinnati, hertfordshire and Spinncraft company, its spinning equipment tend to be large and strong, such as hertfordshire company production of large vertical type 240 spinning machine can spinning head, six meters in diameter and is mainly used in aerospace products, spare parts processing.  

Germany's main manufacturers have leifeld company and Kai Ling hao si company.  Germany civil industry application strong spinning process is more, the use of small equipment is also more, but also for the processing of military industrial products, such as MBB Aerospace company has spun out dozens of missile parts.  LEIFELD, which Germany banned China from buying in 2018, has a complete product line and acquired all the intellectual property rights of Leico, another famous German spinning machine manufacturer, several years ago.  Its spinning machine products have been serialized, in addition to the general spinning machine also produces strong spinning, forming spinning and closing spinning machine.  

• German mechanical tools company Leifeld metal spinning company products
  

Japan It is said that there are about 400 spinning companies in Japan, their size is around 10 people.  Spinning is also one of the essential techniques used to manufacture small types of machined products and is considered one of the cornerstones of Japanese precision manufacturing.  

There are also many excellent spinning machine production and application enterprises in China, which occupy a place in this field with our unique striving and specialized research spirit.  Below I introduce to you is a little-known small and micro enterprises, their production of spinning machine due to excellent quality and good service cost-effective in the field of lighting furniture has achieved a certain reputation, especially suitable for some 0.6-1.0 iron material.  

Shenglian Qing technology Co., LTD  

The above part of the information from the network, I hope to help you.