The Advantages of Vacuum in HPDC

High-Pressure Die Casting The Advantages of Vacuum in HPDC

10.05.2021Editor: Nicole Kareta

Especially in times of the pandemic, digital industry exchange via different channels is essential. In April 2021, the LinkedIn community discussed the benefits of vacuum in HPDC. The majority of survey participants agreed that the most important characteristic of vacuum in HPDC is improving the parts quality. But there are more benefits worth discussing.

Related Vendors

Albert Handtmann Metallgusswerk GmbH & Co. KG

Fondarex SA

This article presents some advantages of Vacuum in HPDC.
(Source: gemeinfrei / Unsplash)

"Why would you use vacuum in HPDC?" Julien Bobst, Area Sales Manager at Fondarex SA, recently posed this question to the LinkedIn community. The non-representative survey drew 34 participants, 47 % of whom chose the answer option "Improve parts quality." Other options included "Resolve cavity filling issues" (32 %), "For structural & safety parts" (12 %) and "Surfaces aspects & treatment" (9 %).

But how can vacuum in HPDC fulfill these aspects? We asked Julien Bobst in more detail:

How Vacuum in HPDC Improves Parts Quality

Figure 1: How vaccum in HPDC improves parts quality.
(Source: Fondarex)

In general the best way to increase the quality of the parts is to remove the gas porosity. In this case the results are coming out much better! The reject rate is reducing on the HPDCM and generates more good parts.

Whitepaper Cover: Johannes Messer – Consulting GmbH

How Vacuum in HPDC Resolves Cavity Filling Issues

Figure 2: How vacuum in HPDC resolved cavity filling issues.
(Source: Fondarex)

Cavity filling issues are resolved by removing the air entrapped inside a complex geometry of the mold. The filling during the injection with the vacuum will be more easy and you can decrease the specific pressure of the HPDCM to fill the cavity. The life time of the mold will also be increased due to this modification of the process.

With Fondarex as a partner, Celikel Die Casting focuses its business on the automotive industry. (gemeinfrei)

How Vacuum in HPDC is Used for Structural and Safety Parts

The production of structural parts is impossible without the vacuum technology. The technical aspect must be reached. The complexity of the design (geometry), the thickness requirements, the mechanical characteristic to reach are very high. It is also mandatory to have the high quality standards for safety parts.

How structural components for automotive applications are actually defined and how their physical properties can be achieved is explained by Robert Knorre, Managing Director, DruckGussBeratung.

How Vacuum in HPDC is Used for Surface Aspects and Treatment

The parts for surface quality or surface treatment will be better with the vacuum technology. By reducing the gas porosity on the surface, the parts are more resistant for any further treatment and the appearance is ameliorated.

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