The AIM process description and AIM production equipment development status

The MIM and CIM is two big branch of powder injection molding process. Among which, MIM is the earliest and most mature branch, known as the 21st century’s most popular parts forming technology. It did live up to such an honor, its industry continuously develop and expand, and have the special metal injection molding production equipment. Now the third branch appears in Powder injection molding process: the AIM, the aluminum alloy injection molding
In recent years, with the metal injection molding technology matures and popularization, people also pay more and more attention to aluminum alloy, this special composite metal with excellent function.  Due to aluminum alloy has a great variety, and characteristics of big differences in nature, surface susceptible to oxidation.  Its requirements in injection molding are different from the common metal or alloy. Therefore, the special AIM appears-Aluminum alloy Injection Molding.
Any process to be comprehensive development, formed a kind of industry, must through improving production equipment and upgrading to improve enterprises production efficiency.
AIM is not exceptional, at the beginning it had no special equipment, traditional powder metallurgy and plastic injection industry general production equipment and special equipment for metal injection molding have been used in the process.

But it has its unique characteristics of raw materials, those not special equipment can’t meet their normal production needs, although you can use the products quality is compromised.
The research of AIM production equipment (mainly mixed granulation equipment and injection equipment) is started in recent years, because of the aluminum alloy injection molding is a very advanced technology, domestic research is just beginning. The Nanjing university of science and technology research in this field more earlier and has made some research achievements, the level can achieve world’s top three in the field. Due to the friction coefficient of the aluminum alloy powder is smaller than ordinary metal powder and ceramic powder, so in principle, the mixing equipment and injection equipment can be Shared.

With the AIM requirements improved of enterprises production efficiency and automation equipment, processing and equipment performance of a higher level of continuous. The study professional aluminum alloy injection molding mixer, granulator and injection machine was brought to the agenda by a great number of machinery and equipment manufacturers.
The current domestic a few mechanical equipment manufacturers through the way of cooperation with colleges and universities, has achieved initial results on r&d and production of AIM special equipment to produce. And on trial in some enterprises, the functions and features have yet to be tested and improved in the future production practice. It is believe that with the constant progress of science and technology, the production equipment will also develop toward intelligent, environmental protection, automation.