Metal Injection Molding Precision Internal Gear

Metal Injection Molding Precision Internal Gear

In the door lock system, there are three most crucial MIM lock components whose relative positions determine the opening and closing of the door. In order to enhance the anti-theft function of the door lock, these functional components are made of high-strength alloy steel materials. To meet the requirements, our company specially uses high-strength low-alloy steel materials with a hardness of up to 50HRC, which can be easily surface treated.

The Powder Metal process can be used to create materials that cannot be created in normal ingot grades to achieve special properties by melting.  Many times, net shape parts can be produced resulting in a finished part with little or no secondary processes.  The tools, built from tool steel, are reusable so the powder metal process can produce economical part prices for higher volume programs.

What’s the MIM technology and its advantages and features.

MIM is an advanced metal forming technology that use injection molding machine to manufacturing precision and complex metal parts, which combines the advantage of PM and plastic injection molding.

1. It’s suit to do mass production with complicated shapes, create metal parts with complex geometries; MIM technology can accurately produce components features such as internal and external threads, undercuts, teeth (e.g., gear teeth), slots, holes, fins, markings, and engravings.
2. MIM process imposes few restrictions on the part design. It gives freedom to manufacture a variety of shapes, can fabricate multi-component parts as a single piece
3. Wide selection of metal materials for MIM, It can use all kind of metal material(such as stainless steel, carbon steel, copper alloys, nickel alloys, tungsten alloys, cobalt alloys, iron, carbide, ceramic and titanium, etc)
4. Its relative density can achieve more than 98%, MIM parts are produced with high density, resulting in excellent mechanical properties, including strength and hardness. This makes MIM a great solution for components that need to withstand high stress and wear.
5. Its finished products is close to final products, less material wastes and scrap than a machining process, which is important for expensive materials such as refractory materials, titanium alloys, superalloys, and specialty metals. reducing the post-treatment cost, and then save production cost.
6. Compared with tranditional CNC and precision casting process, the structure are more even and preformance is much better, Consistent part quality, Consistent part density & strength
7. Compared with PM(Powder Metallurgy), MIM can produce more complex shape and better preformance metal products.

Compare with other process

MIM material 

All kinds of precision metal injection molding(MIM) and powder molding(PM) hardwares; sinter gears(bevel gear,pinion gear,worm gear and helical gear),complex-shape metal parts(like hair clipper blade, nail clipper parts, scalpel, lock bolt), sprocket, pulley and stainless steel precision die-casting parts,etc.