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  • Case Study: Using BASF’s Catamold® for automotive parts manufacturing

Case Study: Using BASF’s Catamold® for automotive parts manufacturing

by Ecrimesa Group / Monday, 25 July 2022 / Published in Case Studies
MIM piece

In Ecrimesa we have carried out a Case Study, where we analyze the use of BASF’s Catamold® for the manufacture of automotive parts, through Metal Injection Molding. In the document we explain the advantages of this component and offer practical examples of use.

Metal Injection Molding

Metal Injection Molding (MIM) is a powder metallurgical manufacturing technique that injects binder and metal powder into a mold or cavity.
MIM technology is suitable for manufacturing complex geometry, small to medium size parts in a wide range of materials (stainless steels, low alloy steels, soft magnetic, tool steel and ceramics). It combines the technique and versatility of plastic injection molding with the sintering technique to produce high-density parts with very tight geometrical tolerances.

MIM Process
MIM Process (Spanish)

MIM in the automotive industry

Catamold® production

To meet the specific needs of the automotive industry, BASF’s Catamold® has proven to be an ideal component. Catamold® is ready-to-use granules for injection molding. It consists of metallic or ceramic powder and a tailor-made binding agent.


In the initial stages we consider:

Design
To start with the MIM Process from injection molding

Process Window
This is a chart with a range of parameters for a specific manufacturing process that produces a defined result.

QC (quality control)
Quality inspection is an activity that consists of checking, measuring or testing one or more characteristics of the product or service and comparing the results with specific requirements to confirm compliance. This task is performed by qualified personnel.

Screw geometry

Wear protection

Injection Molding
The feedstock is injected into a mold with the desired part shape. The main injection parameters are pressure, flow rate and temperatures (of the injection screw and mold). The injection parameters must be adapted to the part geometry. As manufacturers, in order to obtain parts without internal defects, the know-how of the respective industry is essential.
The part obtained is known as a “green part“.

Debanding
This is the process in which the binder that has been used for injecting is removed, and can be carried out by various methods:

  • 100% thermal
  • Water-based
  • With solvents, or
  • by catalytic reaction.

The resulting piece is called a “brown piece“.

Sintering
This is the process of interdiffusion bonding of the metal particles together by the action of temperature and gases (depending on the alloy it will be H2 or N2) and in which the target density is reached (95-98% compared to 82% of traditional sintering).
It can be carried out in batch furnaces (suitable for small batches or special materials) or in continuous furnaces (suitable for large production batches).
At Ecrimesa Group we have both equipments with 3 continuous lines and 2 batch furnaces. The positioning of the parts during the debanding and sintering process can affect the dimensional results obtained, so the definition and industrialization phase is another key to obtain a robust and reliable process. 

Post-processing
It consists of different heat treatments, polishing and machining, to obtain the final part.

Examples of the use of MIM in the automotive industry

At Ecrimesa we have manufactured different parts for the automotive sector using Catamold® by BASF. The following is an example of a specific part for a motorcycle component, specifically the engine piston.

MIM piece
MIM Piece

The Catamold® material used for the production of this part is Catamold FN08. In addition, there are other key aspects of the production process of this part to consider:

  • Hardness: 32-35 HRC.
  • Heat treatment: carried out by our company
  • Machining: carried out by our company
  • In the past: this piece was produced through the lost wax casting mechanism.

In the Case Study that can be downloaded below, we show more examples of manufacturing different parts for the automotive sector, as well as a comparison of the MIM Process with other technologies. The use of Catamold® by BASF together with Ecrimesa Group’s extensive experience in MIM technology enables the most efficient manufacturing of metal parts.

Download the Case Study here

What you can read next

Case studies of additive manufacturing with metals
Conversion to MIM of die-cast door hinge manufacturing
Investment casting: some examples from application

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

"Una manera de hacer Europa"

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Avda. Parayas 32 ES-39011 Santander. España

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

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