Eurobalt Engineering: Metal injection molding solutions

Metal injection molding (MIM) is a modern technological procedure of metalworking whereby finely-powdered metal is combined with binder material to create a feedstock which is then molded and solidified through injection. It is an environmentally friendly procedure for producing small metal parts. We use MIM technology to produce different components of our products. Metal injection molding is a technical method for the production of small metal parts. This metalworking process is suitable for applications requiring precise dimensions. This process of metalworking is accurate for components that require specific tolerance. Using MIM technology, we can produce high-quality components with complex shapes and finished surfaces at a low cost of production. We can also insert labels on the components according to the customer’s request. At Eurobalt we are following standards to manufacture our product parts using MIM technology.

  • Feedstock preparation

    In Metal Injection Molding, the primary raw materials we use are metal powders and a thermoplastic binder. We purchase metal powders and a thermoplastic binder from trusted suppliers with obligatory incoming raw material control and mix them at our facility to get feedstock. The binder is only an intermediate processing aid and after injection molding will be removed from the products. The powder’s characteristics determine the Metal Injection Molded product’s final properties. Using a kneader or shear roll extruder, the blended powder mix is worked into the plastified binder at an elevated temperature.

  • Injection molding

    The ‘green’ MIM parts are formed in an injection molding process equivalent to the forming of plastic parts. The variety of part geometries that can be produced by this process is similar to the great variety of plastic components.

  • De-binding

    The binder extraction method is used to obtain components with an integrated pore network without breaking the element structure. There is often still some binder at the end of the binder removal process in the parts holding the metal powder particles together, but the pore network allows the residual binder to evaporate quickly in the initial sintering phase.

  • Sintering

    The sintering process results in the elimination of most of the pore volume formerly occupied by the binder. The sintered MIM parts may be further processed by conventional metalworking processes such as heat treatment or surfacing in same way as cast or wrought parts.

Advantages

Time & Cost-efficient

MIM technology is an impressive time-saver and is cost-efficient compared to traditional methods of investment casting, die casting as well as conventional press and sinter in every step of the manufacturing process MIM technology shortens product development cycles (sometimes 10-20 minutes are reduced to 10-20 seconds) and expensive multiple-stage machining operations are mostly not required, which further reduces time to finished components. State-of-the-art Metal Injection Molding technology is a single-stage process and can completely eliminate several finishing steps. MIM technology also allows for molding intricate shapes very precisely, in a cost-effective manner.

Complex shapes product design

MIM design eliminates design restrictions and does not warranty compromises in the design requirements of parts. In addition, MIM technology delivers the highest precision in the finished product, irrespective of the complexity of the design. Also, MIM technology produces components required precisely with accurate dimensions and tolerances. Unlike traditional metal forming technologies, MIM design is widely used and unrestrictive, granting ultimate freedom and flexibility to the product designer. In most cases, MIM technology is chosen when highly intricate metallic components with a finished part weigh less than 100g are required. Technically, larger MIM parts weighing up to 453g can also be manufactured. Almost any shape or structure that can be produced using plastic injection molding can be achieved in metal using Metal Injection Molding.

High Density for Highest Strength & Tolerances

MIM technology can achieve near full densities, as high as 99.5%. MIM technology produces products that have, smoother and superior surface finishes.
While conventional powder metallurgy has its limitations, parts manufactured using MIM technology may be plated and heat-treated, similar to wrought alloys. MIM components display extreme strengths and integrity, which make them ideal candidates for high-vacuum applications.

Metal engraving and surface treatment

Eurobalt Engineering provides a wide range of surface treatment solutions which are cost and energy efficient, safe for operators and environmentally friendly. We have a complete answer to preparation of metal surfaces ready for finishing using various methods such as electro plating, painting and powder coating according to our customer requirements.  The prime aim of surface treatment is to make the final product more resistant to corrosion or wear. We can engrave a logo on the final product during the manufacturing process according to our customers’ requirements.

Eurobalt is manufacturing various components of different shapes and sizes using MIM technology manufacturing process, and we welcome you to send us the drawings of your parts to get competitive price offer shortly.