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Challenges - Icon - Weld deposits

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Adhesion / Weld deposits

When metallic materials are welded together, glowing matter known as weld spatter frequently flies around during the welding process. If this matter then lands and cools on equipment components or the production parts themselves, it generally adheres to them.

For equipment components, this can eventually mean that the components can no longer be accurately inserted and positioned. As a consequence, rejects are produced, or the plant must be stopped and cleaned or repaired.

As a general rule, this weld spatter is much less able to adhere to ceramic materials than on metallic materials. This leads to reduced adhesion.

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Adhesive wear

If components in contact with one another are pressed firmly together under high surface pressure, the contact areas will adhere to one another due to adhesion (or adhering force). When the components slide, small particles of the surface layer are then sheared off.

This is a recurring problem particularly during the machining of aluminium components. If too much additional material has accumulated on the positioning pin, it is no longer possible to position the components.

Challenges - Adhesion / Welding on

Sample Solutions

Solutions - Gas nozzles

Gas nozzles

Ceramic gas nozzles made from silicon nitride are characterised by exceptionally long service lives. In certain applications, the ceramic actually prevents the adhesion of weld spatter.

Solutions - Positioning pin

Positioning pin

Positioning pins are used for the controlled positioning to extremely fine tolerances of components and moulded sheet metal parts.

Solutions - Welding device

Welding device - ModulMaster

Welding devices hold two or more (car body) components in position so that they can then be permanently joined together.

Solutions - Punching stamps

Punching stamps

Punching stamps must repeatedly punch a contour in a predetermined geometry into a sheet.

Solutions - Cutting disks

Cutting disks

All-ceramic cutting disks have carved out a well-earned reputation in series production facilities over many years.

Solutions - Centring pins

Centring pin

Centring pins are manufactured entirely from ceramic and are used for centring nuts on metal sheets.

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