Electrical Discharge Machining - EDM

Drilling of GDI shim plate for the automotive industry

GDI shim plates demand high precision and tight tolerances to ensure accurate fuel delivery, making their drilling process a significant challenge. The complexity of designs, uniquely tailored to each engine, adds difficulty in maintaining consistency and quality throughout the process. Combined with the automotive industry's sustainability focus, innovative solutions and precision engineering are key.

GDI shim plate drilling application overview

The shim plate, a thin and flat component with varying thicknesses, is used to provide support to ensure precise fuel delivery and optimize GDI engine performance. GDI shim plate machining process involves micro-drilling of small and precise shapes. To enhance engine performance and fuel efficiency, our experts in precision engineering guarantee optimal results.

GDI shim plate drilling results and achievements

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Precision we can achieve 

Our priority is to meet your requirements. We can achieve a wide range of holes in shim plates, from 80 μm up to 1.6 mm (0.003 to 0.06 inch), with high precision and accuracy. The process of drilling shim plates is highly efficient, as proven by the erosion time of just 25 seconds per hole for a 6-hole application with a diameter of 150 μm and thickness of 0.8 mm. 

You currently have a shim plate drilling project and you would like to know more about what we could achieve together? 

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Electrical Discharge Machining - EDM technology to perform these results

The process is based on the electro-erosion principle. Material is removed from the workpiece by a series of rapidly recurring current discharges between electrode and anode, separated by a dielectric liquid and subject to an electric voltage. One of the electrodes is called the tool-electrode, or simply the “electrode”, while the other is called the anode, or “workpiece.”

In order to machine high quality micro holes the Posalux EDM machines have a tilting head with deformation by pressure that allows to control the diameter and the shape of the hole, resulting in a run-out of the electrode. The electrode turns on a decentered axis, giving two different gaps, one where sparks erode the material and another, bigger one, allowing a better flushing of eroded materials. In combination with CNC driven axis and a high-speed interface to communicate with the micro EDM generator, perfect micro holes are the result.

Make it possible with the EDM HP machine

The EDM machine range micromachines parts made of conductive materials with short cycle times and high productivity.

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Electrical Discharge Machining - EDM

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Let’s discuss your micro-machining operations

If you are looking for a high-tech production system as well as a partner to process state-of-the-art micro-machining, you are in the right place.