MIM (Metal Injection Molding) process, including materials mixing, granulation, injection molding, debinding, sintering and post processing.
It is quite different from conventional metal production process, because the MIM (Metal Injection Molding) technology use injection molding to produce the parts, this processing is similar with plastic injection. In this case, it should pay more attention when design the parts, such as gate location, parting line position, ejector location and so on. It should note that how to not affect the appearance of the product’s beauty.
In addition, MIM (Metal Injection Molding ) parts when debinding and sintering , which will be shrunk about 20%, the tolerance of dimension is about 0.3% to 0.5%, and it had better put the parts in a flat plane when sintering the parts, in this way, it can avoid the deformation of parts, otherwise, it will need support to fix the parts, in this situation, the cost of production will increase, just like the left showing of picture.
| MIM (Metal Injection Molding) parts, the thickness is generally kept to less than 10 mm, and the length is less than 100 mm. The best thickness of parts is about 1 mm to 3 mm, by using the MIM (Metal Injection Molding) technology, this kind of design of hole and slot can be easy produced. Therefore, the unnecessary part of the parts can be emptied, and it will reduce material and weight. These measures will help decrease the cost of production, just like the left showing of picture. |
