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  • Conversion to MIM of die-cast door hinge manufacturing

Conversion to MIM of die-cast door hinge manufacturing

by Ecrimesa Group / Tuesday, 17 January 2023 / Published in Case Studies

The last December number of PIM International magazine, includes a Case Study prepared by our technical director, Manuel Caballero.

In the article, Manuel Caballero reviews a conversion process in which a die-cast zinc hinge set is redesigned for production with MIM in 316L stainless steel, improving significantly mechanical properties. 

Die casting is a widely used process for the production of metal parts, including, for example, hinges, which are components that do not have high strength or resistance requirements. However, when mechanical performance specifications are increased, a technology like Metal Injection Molding MIM) may be just right for manufacturing. 

Evolution mim piece
Evolution of the design of the large piece (left to right)

The Case Study details the customer’s specifications and why Metal Injection Molding production was considered the ideal technology. For MIM production, several adjustments and adaptation of the design had to be made. For example, the lack of visible injection points was a great challenge for the Ecrimesa engineering team, as well as lightening the weight of the part and reducing the cost of materials. Several iterations and tests were necessary before the final step in production. The article describes the steps and processes followed, the material used and the result obtained. With the new mechanical properties of the part and the improved aesthetics, the customer was able to bring the product to higher quality markets. Manuel emphasizes how continuous working with the customer has been decisive throughout the process. In the cooperation between Ecrimesa Group Technical Department and Projects with the customer, the necessary synergies were found to achieve the tarjets of both sides.

mim technical department
Final part developed by Ecrimesa Group

At Ecrimesa Group we have facilities for both Investment Casting and MIM, and our experience with different technologies was key to understand the limitations and advantages of each process during the design transition. We were able to take advantage of the synergies between the different technologies and thus accompany and support the customer throughout the entire redesign and manufacturing process, from conception to finish.

Download here Vol.16 Nº 4 PIM International Magazine

PIM International is the leading reference source for metal (MIM) and ceramic (CIM) injection molding, as well as the closely related sinter-based additive manufacturing processes. His editorial focus is on the industrial application of these technologies, from design and manufacturing to end-use applications.

MIM combines the versatility of injection with sintering technologies to produce pieces of high density with narrow geometric tolerances. Metal Injection Molding is a suitable technology for fabricating pieces of complex geometry of small to medium size in an ample range of materials, like stainless steels, steels of low alloys, soft magnetic, tooling steels and ceramics.

Ecrimesa Group was the first company worldwide to develop the process of fabrication in a continuous furnace with catalytic debinding, in collaboration with BASF and Cremer Thermoprozessanlagen GmbH.

We operate four continuous lines for debinding and sintering and two vacuum batch lines for sintering with a processing capacity of more than 200 tons of feedstock per year. This way, we can fabricate more than 1,2 million pieces every month.

What you can read next

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Proyecto de Innovaciones de Industria 4.0 en Mimecrisa 2021” Cofinanciado por la Consejería de Innovación, Industria, Turismo y Comercio (Gob. Cantabria) y el Fondo Europeo de Desarrollo Regional FEDER El objetivo general del proyecto es avanzar en la transformación digital de MIMECRISA mediante la aplicación de un conjunto de nuevas tecnologías que afectarán a toda la cadena de valor del proceso (para la optimización de su control y mejora continua) al producto (gracias a la reducción de errores y predicción de defectos mediante ML) y al modelo de negocio (facilitando la relación con proveedores/clientes).

La empresa Electro Crisol Metal, S.A. ha sido beneficiaria dentro del programa de SODERCAN SA: "Subvenciones en respuesta a las consecuencias económicas de la guerra de UCRANIA."
De acuerdo con lo dispuesto en el artículo 28.6 la Ley de Cantabria 1/2018, de 21 de marzo, de Transparencia de la Actividad Pública, se publica la siguiente comunicación de retribuciones.

La empresa Mimecri, S.A. ha sido beneficiaria dentro del programa de SODERCAN SA: "Subvenciones en respuesta a las consecuencias económicas de la guerra de UCRANIA."
De acuerdo con lo dispuesto en el artículo 28.6 la Ley de Cantabria 1/2018, de 21 de marzo, de Transparencia de la Actividad Pública, se publica la siguiente comunicación de retribuciones.

La empresa Mecanizados Cantabria, S.L. ha sido beneficiaria dentro del programa de SODERCAN SA: "Subvenciones en respuesta a las consecuencias económicas de la guerra de UCRANIA."
De acuerdo con lo dispuesto en el artículo 28.6 la Ley de Cantabria 1/2018, de 21 de marzo, de Transparencia de la Actividad Pública, se publica la siguiente comunicación de retribuciones.

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Unión Europea

Proyecto Cofinanciado por el Fondo Europeo de Desarrollo Regional
Programa Operativo FEDER de Cantabria 2014-2020

"Una manera de hacer Europa"

Ecrimesa isotipo blanco

Avda. Parayas 32 ES-39011 Santander. España

Tel.: (+34) 942 334 511
ecrimesa@ecrimesa.es

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