Overview

The HERMLE MPA technology (metal powder application) is a highly innovative, unique manufacturing process that integrates additive and subtractive machining within a hybrid machine concept. 

Our additive service encompasses the entire process – from the initial enquiry and additive material build-up based on the MPA process (metal powder application) to the defined delivery condition. MPA technology forms a key stage within a structured process chain that includes pre-processing, additive material build-up, specialised heat treatment, final machining and quality assurance.

The focus lies on a comprehensive feasibility study, clear data management with version control and a delivery condition as agreed – either fully machined or with a defined allowance.

Collage: Kupfer Stahl Kombinationen

Process overview

Step - 1

Enquiry and data check

We begin with your application and 3D CAD data. You are immediately assigned a dedicated contact person. We assess the feasibility, collaborate with you to define the target geometry/finished contour and establish reference surfaces for subsequent machining at your site. 

Upon request, we provide a guide price based on the feasibility assessment. We also offer comparative thermal simulations (MPA component with additive features vs. conventional component) to evaluate improvements in thermal performance. 

If development or testing work is required, this will already be clarified during the feasibility study. From this step onwards, a unique CAD version reference is assigned to ensure that quotation, order and production are all based on the same data set.

Step - 2

MPA design and quotation

We will work with you to finalise the component’s geometry (including MPA components) and prepare a quotation clearly specifying the CAD version reference, the delivery condition (fully machined or with a defined allowance), and the agreed documentation options. The distinction between the delivery contour and the finished contour is clearly described.

Step - 3

Order and order confirmation

Once your order has been received, we will confirm the dates and quantities and give the go-ahead for the start of production. This is based on the approved quotation, which defines a fixed CAD version and a specified delivery condition. The options and scope of documentation are already defined there.

Step - 4

Preparation of the basic raw material

Once the order has been placed, we create the production specifications and program the machining operations in our in-house CAM system. The base bodies are then prepared on our milling machining centres – using automated processes where required. Components are continuously measured and inspected throughout the entire process.

Step - 5

MPA manufacturing

The defined areas are manufactured additively in the agreed MPA setup. Application and milling are performed alternately according to the production specifications. Process parameters are monitored, recorded and stored ensuring full traceability down to individual components.

Step - 6

Heat treatment

We perform specialised heat treatment tailored to our customers’ requirements and specifications. Process and batch data are assigned to the component and documented.

Step - 7

Milling process and quality assurance

We mill the final contour or, depending on the agreement, leave a defined allowance (a few millimetres) for final finishing. Accompanying quality and process inspections ensure that the target geometry is achieved. Measurement and test results are reliably documented.

Step - 8

Delivery

Packaging, documentation and shipment take place as agreed.

What we offer you as a customer

  • Feasibility assessment – with a guide price upon request.
  • Quotation with referenced CAD data (delivery contour vs. your finished contour) and specified delivery condition.
  • Optionally: comparative thermal simulation (MPA component vs. conventional component) to assess thermal performance.
  • Documented, traceable process management across all steps.
  • Expertise from a single source: design, development, CAM and process integration.
  • Delivery condition of your choice: fully machined or with a defined allowance.
  • A dedicated contact person from your very first enquiry.

What we need for your enquiry

  • Description of the application, including details of the problem
  • 3D CAD data (preferably .stp) and, where applicable, a drawing or sketch of the relevant functional surfaces
  • Target geometry/finished contour, relevant tolerances and priorities (dimension/fit/surface)
  • Material specifications or target properties (e.g. strength, conductivity)
  • Operating conditions (temperature, media, loads), where relevant
  • Quantity and preferred delivery period

In person – or via MS Teams

Visit our MPA manufacturing facility in Ottobrunn or get started with a short demo via MS Teams. 

Our sales team will be happy to discuss the format with you directly.

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