江苏The Right Time to Select Metal Injection Molding Process

A part can be completed by multiple processes. Choosing different processes can effectively reduce the production cost. For the situation often encountered by powder metallurgy manufacturers, the developers of new products are not sure whether the designed parts have shortcomings. They can make several samples by wire cutting method and conduct mass production after testing. Although the price of sample pieces made by wire cutting is high, the cost of mold design is still very low. The risk of mold development can be reduced by knowing the use of products after the sample pieces are tested. So when to choose MIM metal injection molding process for production?

First of all, understand the advantages of MIM metal injection molding. The MIM production is basically a mature part that has been determined. Most of the parts produced by the MIM process are complex in shape. Analyze from 4 points of the component.

1. Size

Generally, the parts and components using MIM metal injection molding are relatively small, and the weight controlled within 280g is * * *. This is because once the weight is high, the cost of raw materials used will be high. The cost of raw materials manufactured by MIM metal injection molding is much higher than that of conventional pressed PM powder metallurgy raw materials, unless this part is very complex and geometric, and only MIM technology can complete it.

2. Complexity

MIM metal injection molding has the same design freedom as plastic injection molding parts. The more complex the geometric shape of a part is, the more stable the rationality of its manufacturing with the MIM process is. Components may include: transverse holes, internal threads, angle holes, irregular shapes, undercuts, splines, lateral holes or grooves, complex shapes, or cantilevers. Or on some parts that are only machined, MIM metal injection molding can also be used to make blanks to reduce machining costs.

3. * * * Final performance

The advantages of MIM metal injection molded parts lie in high density, high impact toughness, fracture toughness, high fatigue and corrosion resistance. The MIM process is applicable to materials that are difficult to machine or hardened materials that are highly machined.

4. Capacity

MIM parts are suitable for the production of parts with high production capacity. In general, the production capacity * * * needs to reach about 50000 pieces less to reflect the advantages of MIM parts. If not, for complex parts, MIM metal injection molding technology is also a very good choice to calculate the cost of other production processes. The higher the output, the higher the cost performance.