Game Console Buttons MIM Parts

Product Description

Main Guidelines of MIM Part Technology

The Metal Injection Molding Association of Japan, the United States and Europe jointly issued the ISO standard-ISO22068 sintered metal injection molding material specification, which is intended to provide design and material engineers with the information required for the materials specified in the parts manufactured by the MIM part process. Regarding the process criteria for selecting MIM parts, it is determined that there are some main things to consider:

1. Quality/mass

For parts with large material loss during cutting or grinding, MIM parts are extremely effective in reducing production costs.

2. Quantity

Tooling and build costs are prohibitive for low volumes. Therefore, it is most suitable for MIM parts when the annual output exceeds 20,000 pieces.

3. Materials

MIM parts are most attractive for parts designed in difficult-to-machine materials such as titanium, stainless steel, and nickel alloys.

4. Complexity

The MIM part process is most suitable for the manufacture of multi-axis parts with complex geometries and positions that need to be transformed during cutting operations.

5. Performance

If performance in service is important, the performance of densely formed MIM parts is often competitive.

6. Surface roughness

Surface roughness reflects the size of the initial powder particles, however, unlike competing processes, the controlled texture may have little impact on cost.

7. Tolerance

If the required tolerances are tight, the cost of MIM parts tends to increase due to the need for subsequent processing, and the tolerance of sintered parts is about ±0.3%.

8. Combination

In order to save inventory and assembly costs, it can benefit when combining multiple parts into a single part.

9. Defects

It is necessary to make the inherent defects of MIM parts in non-critical positions, or remove them after manufacturing and forming, such as gate marks, lifter pin marks or joint lines, etc.

10. New composite materials

MIM parts can produce new composite materials that are difficult to manufacture with traditional processes, such as laminated, two-material structures, or mixed metal-ceramic materials for wear resistance.

Improvement Measures and Suggestions for MIM Parts

In the early 1990s, industrialized countries such as the United States, Europe, and Japan basically completed the transition from MIM parts technology to MIM industry development. The gap between my country's MIM parts industry and foreign countries' overall level is about 10-15 years. At present, my country is in a favorable period for the development of the manufacturing industry. The application space of MIM parts technology is large, and the product market has broad prospects. This undoubtedly provides a rare strategic opportunity for my country to accelerate the development of the MIM parts industry. To this end, we propose the following measures and suggestions on how to promote the healthy development of the MIM parts industry:

1. Establish a new mechanism for the integrated development of industry-university-research and science, industry and trade.

2. Strengthen planning research and scientific guidance for industry development.

3. Implement the development policy of high-tech industries.

4. Actively seek international technical cooperation.

Mold and Gage

1. Mold service life: usually semi-permanent. (except lost foam).

2. Mold delivery time: 10-25 days, (according to product structure and product size).

3. Tooling and mold maintenance: Zhongwei is responsible for precision parts.

Quality Control

1. Quality control: The defective rate is less than 0.1%.

2. Samples and trial runs will be 100% inspected during production and before shipment, sample inspection for mass production according to ISDO standards or customer requirements.

3. Testing equipment: flaw detection, spectrum analyzer, golden image analyzer, three-coordinate measuring machine, hardness testing equipment, tensile testing machine.